dell compellent vmware integration for vmware vsphere

Storage Center™

Dell Compellent VMware Integration 1.1

for VMware vSphere

User Guide

© 2011 Dell Inc. All rights reserved.

Dell Compellent VMware Integration for VMware vSphere

680-054-001

Disclaimers

Information in this document is subject to change without notice.

Trademarks and Copyright

Trademarks used in this text: DellTM, the DELLTM logo, and CompellentTM are trademarks of Dell Inc.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

Revision Date Description

B April 2011 Updated to support VMware Integration version 1.1. This edition obsoletes all previous editions.

i

Contents

Preface

1 WelcomeIntroduction 2Required Components for Dell Compellent VMware Integration 3

2 Getting StartedInstalling Dell Compellent VMware Integration 6Disabling and Enabling the Dell Compellent Plugin 7

To disable the plugin 7To enable the plugin 7

Adding and Removing Storage Centers 8To add a Storage Center 8To update access information for a Storage Center 8To remove a Storage Center 8

Uninstalling Compellent VMware Integration 9To remove the Dell Compellent VMware Integration for VMware vSphere 9

3 Working with Dell Compellent StorageIntroduction to Dell Compellent Storage 12Adding a Datastore 14

To add a datastore using a new Dell Compellent volume 15To add a datastore using an existing Compellent volume 16

Expanding a Datastore 17To expand a datastore 17

Adding a Raw Device 18To add a new raw device using a new Compellent volume 18To add a new raw device using an existing Compellent volume 19To map an existing raw device to additional hosts or clusters 20

Removing a Datastore or a Raw Device 21To remove a datastore 21To remove a raw device 21

Configuring Data Instant Replays 22To configure Data Instant Replay for a datastore 22To configure Data Instant Replay for all volumes on a virtual machine 22

ii Dell Compellent VMware Integration

Creating a Replay 23To take a Replay of a datastore 23To take a Replay of volumes associated with a virtual machine 23

Expiring a Replay 24To expire Replays for a datastore 24To expire Replays for a virtual machine 24

Recovering a Datastore from a Storage Center Replay 25To recover a datastore from a Storage Center Replay 25

Recovering Raw Device Data for a Virtual Machine 26To recover raw device data for a virtual machine from a Storage Center Replay 26

Replicating a Datastore 27

4 Working with Virtual MachinesIntroduction 30Using the Expose VMFS Gold Image Option 31

To create a virtual machine by exposing a VMFS gold image 31Using the Create Virtual Machines using a Raw Device Image Option 33

To create virtual machines using a raw device gold image as a boot volume 33Using the Deploy from Template Option 35

To deploy one or more virtual machines from a template to an existing datastore 35To deploy one or more virtual machines from a template to a new datastore 36

Recovering a Virtual Machine from a Replay 37To recover a virtual machine from a Storage Center Replay 37

5 Viewing Compellent Storage InformationViewing the Compellent View of Storage 40

View Options 40Commands 43

Viewing the Compellent View of a Virtual Machine 44View Options 45Commands 47

Viewing the Compellent View of a Host 48View Options 49Commands 51

Viewing the Compellent Settings for a Host 52Storage Details 52Details 53Commands 53Connectivity Legend 53Configuring FC Interfaces 54Configuring iSCSI Interfaces 54

6 Wizard Panel ReferenceAdd Storage 56Compatibility Mode 57Creation Options 57Customization 58Datastore Lookup 59Datastore Name 59Datastore Options 60

iii

Datastore Properties 60Datastore Properties for VMFS Gold Image 61Device Configuration 62Expansion Size 62Host / Cluster 63Host Selection 64Lookup Replay 64Map Existing Compellent Volume 65Map Existing Compellent Volume Replay 65Mapping LUN 66Name and Location 67Operating System 67Protocol Selection 68Raw Device Properties 69RDM Selection 69Recovery VM Selection 70Replay Profile 70Replay Properties 71Replay Selection 72Replication Options 72Resource Pool 73Snapshot Options 74Storage Center 75Storage Profile 75Template Selection 76Virtual Machine Settings 77Volume 77 78Volume Retention 78 78

iv Dell Compellent VMware Integration

v

Preface

Purpose

The Dell Compellent VMware Integration plugin provides management of Dell Compellent Storage Center storage via the VMware vSphere client. This guide describes how to install, configure, and use the Dell Compellent VMware Integration plugin.

Audience

The intended audience of this guide is information technology professionals who have intermediate to expert knowledge of both the Compellent Storage Center and VMware Virtual Infrastructure 4.x. This guide assumes administrative working knowledge of Microsoft Windows Server operating systems, VMware ESX servers, the VMware Virtual Infrastructure Client, the ESX service console, bash shell scripting, as well as knowledge of the Microsoft sysprep utility.

Related Publications

In addition to this guide, refer to the following related publications for more information on related topics. All Compellent guides and technical tips are available at the Compellent Knowledge Center customer portal (http://customer.compellent.com).

• Best Practices with ESX 4.X (vSphere)

Provides configuration examples, tips, recommended settings, and other storage guidelines a user can follow while integrating VMware ESX Server with the Compellent Storage Center. This document has been written to answer many frequently asked questions with regard to how VMware interacts with Compellent Storage Center features, such as Dynamic Capacity, Data Progression, and Remote Instant Replay.

• Storage Center System Manager User Guide

Describes how to use Storage Center Manager to configure and manage storage on a Compellent Storage Center.

http://customer.compellent.com

vi Dell Compellent VMware Integration

• Storage Center Enterprise Manager User Guide

Provides enterprise-level management of multiple Storage Centers, including setting up and monitoring replications and DR sites. In addition, Enterprise Manager provides a variety of system-provided performance reports, as well as the ability to create custom reports.

Contacting Copilot Services

If you need assistance, contact Copilot Services by email:

[email protected]

For general information on Dell Compellent products, visit www.compellent.com.

For downloads and technical tips, log on to our customer portal:


Submitting Comments

Dell Compellent uses customer input to improve our products and documentation. If you have comments or suggestions, go to www.compellent.com/feedback.

mailto:[email protected]

http://www.compellent.com


http://www.compellent.com/feedback

1

1 Welcome

Introduction 2

Required Components for Dell Compellent VMware Integration 3

2 Dell Compellent VMware Integration

Introduction

The Dell Compellent VMware Integration 1.1 for VMware vSphere application is a plugin that provides storage administrators the ability to seamlessly add and manage Dell Compellent storage via the VMware vSphere client.

Note Unless stated otherwise, all procedures in this guide are executed in the vSphere client.

Key Features

The Dell Compellent vSphere plugin provides these functions:

• Adding and removing storage (datastores and Raw Device Mappings) on the Storage Center.

• Provisioning virtual machines on the Storage Center.

• Configuring VMware ESX hosts on the Storage Center.

• Creating and Managing Storage Center Replays.

• Replicating datastores between Storage Centers.

• Recovering datastores and VMs from Replays.

In addition, the plugin provides numerous information displays available via Dell Compellent tabs within the vSphere client inventory views.

Best Practice Guides and Technical Tips

Before using the Dell Compellent VMware Integration for VMware vSphere application, read the following publications available at the Compellent customer portal (http://customer.compellent.com):

• Best Practices with ESX 4.X (vSphere)

Provides configuration examples, tips, recommended settings, and other storage guidelines a user can follow while integrating VMware ESX Server with the Dell Compellent Storage Center. This document has been written to answer many frequently asked questions with regard to how VMware interacts with Dell Compellent Storage Center features, such as Dynamic Capacity, Data Progression, and Remote Instant Replay.



3

Required Components for Dell Compellent VMware Integration

Required Components for Dell Compellent VMware Integration

Base Requirements

The following table lists requirements for installing and setting up Dell Compellent VMware Integration:

Replication Requirements

To replicate data from one Storage Center to another, make sure the following requirements are met.

Component Requirements

Operating System Microsoft Windows 32- or 64-bit environment

Note A 64-bit operating system is preferred/required for managing large numbers (200 - 300) of virtual machines.

Microsoft .Net Framework 3.0 SP1

VMware vSphere client 4.1 and above

VMware vCenter server 4.1 and above

VMware vSphere PowerCLI 4.1 and above

Storage Center 4.5.6 and above

Note To configure server clusters on the Storage Center requires Storage Center version 5.x and above.

Requirement Description

Storage Centers Both the source and destination Storage Centers must be configured in the VMware vSphere client. see Disabling and Enabling the Dell Compellent Plugin on page 7.

iSCSI Remote Systems If you are using iSCSI connections for replications:

• On the source Storage Center, the destination Storage Center must be defined as an iSCSI Remote System.

• On the destination Storage Center, the source Storage Center must be defined as an iSCSI Remote Connection.

See the Enterprise Manager User Guide for instructions on configuring iSCSI connections between Storage Centers.

QoS Definition A quality of service (QoS) definition must be set up for the replication. See the Enterprise Manager User Guide for instructions on creating QoS definitions.

5

2 Getting Started

Installing Dell Compellent VMware Integration 6

Disabling and Enabling the Dell Compellent Plugin 7

Adding and Removing Storage Centers 8

Uninstalling Compellent VMware Integration 9


Installing Dell Compellent VMware Integration

Prerequisites

• VMware vSphere client is properly installed and able to connect to the vCenter server.

• VMware PowerCLI is installed on the same host as the vSphere client. When installing VMware PowerCLI, accept all the defaults presented during the installation process.

• VMware vSphere client is closed while installing the Compellent VMware Integration.

Procedure

1 Download the Dell Compellent vSphere plugin installation file from the Dell Compellent customer portal. (http://customer.compellent.com)

2 Unzip the Dell Compellent vSphere plugin file onto the vSphere client host.

3 Launch the .msi file and follow the instructions in the wizard.

4 When installation is complete, log on to the vSphere client to verify that the plugin installed successfully. If the plugin is installed, the Compellent logo is displayed in the Solutions and Applications group.

Note To verify that the Dell Compellent plugin is enabled, see Disabling and Enabling the Dell Compellent Plugin on page 7.


7

Disabling and Enabling the Dell Compellent Plugin

Disabling and Enabling the Dell Compellent Plugin

After installation, the Dell Compellent vSphere plugin is automatically enabled.

To disable the plugin

1 In the vSphere Client, select Manage Plug-ins from the Plug-ins menu.

2 Right-click on the Compellent vSphere Plugin, and select Disable.

3 Click Close to close the Plug-ins Manager.

To enable the plugin

1 In the vSphere Client, select Manage Plug-ins from the Plug-in menu.

2 Right-click on the Compellent vSphere Plugin, and select Enable.

3 Click Close to close the Plug-ins Manager.


Adding and Removing Storage Centers

Once you’ve installed the Dell Compellent vSphere plugin, configure the Dell Compellent Storage Centers you want to manage via the vSphere client.

To add a Storage Center

1 Log on to the vSphere client, and click Home in the main toolbar.

2 In the Solutions and Applications group, click on the Storage Center logo.

3 In the left column under Storage Systems, select [Add New System].

4 In the Storage Center Settings box, provide identification for the Storage Center you want to add:

• Host: Enter the host name or management IP address for the Storage Center.

• User Name/Password: Enter the username and password for accessing the Storage Center.

Note The Storage Center logon user must be a Storage Center administrator.

5 Click Add.

To update access information for a Storage Center


2 In the Solutions and Applications group, click on the Compellent Storage Center logo.

3 In the left column under Storage Systems, select the Storage Center you want to update.

4 In the Storage Center Settings box, provide new access information for the Storage Center:

• Host: Enter the host name or management IP address for the Storage Center.

• User Name/Password: Enter the username and password for accessing the Storage Center.

5 Click Update.

To remove a Storage Center


2 In the Solutions and Applications group, click on the Compellent Storage Center logo.

3 In the left column under Storage Systems, select the Storage Center you want to remove.

4 Click Remove.

9

Uninstalling Compellent VMware Integration

Uninstalling Compellent VMware Integration

To remove the Dell Compellent VMware Integration for VMware vSphere

1 Close the VMware vSphere client.

2 Use the Microsoft Windows Control Panel functions to remove the Compellent plugin.

11

3 Working with Dell Compellent Storage

Introduction to Dell Compellent Storage 12

Adding a Datastore 14

Expanding a Datastore 17

Adding a Raw Device 18

Removing a Datastore or a Raw Device 21

Configuring Data Instant Replays 22

Creating a Replay 23

Expiring a Replay 24

Recovering a Datastore from a Storage Center Replay 25

Recovering Raw Device Data for a Virtual Machine 26

Configuring Data Instant Replays 22


Introduction to Dell Compellent Storage

Dell Compellent VMware Integration for VMware vSphere allows an administrator to manage Dell Compellent storage via the vCenter vSphere client.

A Dell Compellent Storage Center configures and uses storage based on the following:

Dell Compellent Storage Term Description

Storage Tier

physical media classes

Storage Tiers represent the classification of all physical storage media in the Storage Center. Storage Center automatically populates storage tiers with the available media in the Assigned disk folder:

• Tier 1: Contains the fastest media appropriate for often used, mission-critical data. Tier 1 media is typically the most expensive media.

• Tier 2: Contains medium-quality media appropriate for medium priority data.

• Tier 3: Contains slower, inexpensive media appropriate for backup copies, Replays, and low-priority, rarely used data.

Storage Type

RAID level and page size

Within each tier, data can be stored as:

• non-redundant RAID 0 with 2 MB page size

• redundant RAID 10, RAID 5-5, RAID 5-9with 2 MB, 512 MB, or 4 MB page size.

• dual redundant RAID 10 with 2 MB page size

The default (and recommended) setting for storage type is redundant using both RAID 10 and RAID 5-9 with a 2 MB page size.

Volume

a logical unit of storage

On the Storage Center, a volume is a logical unit of storage. When you add a datastore within the VMware vSphere client, you create and map a new Compellent volume as a datastore or map an existing Compellent volume as a datastore.

Data Type

writeable or Replay

Volume data can be either of the following:

• Writeable: Data dynamically written to storage.

• Replay: Point-in-time copy data.

13

Introduction to Dell Compellent Storage

Storage Profiles

applied to a volume to determine how data is migrated on the Storage Center

Storage Profiles determine how volume data is stored and migrated on the Storage Center. System-defined Storage Profiles include:

• Recommended: Available only on Storage Centers with Licensed Data Progression. Use the Recommended profile for most volumes to optimize Data Progression and performance on the Storage Center. The Recommended profile allows the system to automatically progress data between storage types and across all storage tiers based on data type and usage.

• High Priority: Use the High Priority profile only for volumes that contain data you want to keep in tier 1 storage. That is, applying the High Priority profile to a volume prevents the volume data from migrating to another tier.

• Medium Priority: Use the Medium Priority profile only for volumes that contain data you want to keep in tier 2 storage. That is, applying the Medium Priority profile to a volume prevents the volume data from migrating to another tier.

• Low Priority: Use the Low Priority profile only for volumes that contain data you want to keep in tier 3 storage. That is, applying the Low Priority profile to a volume prevents the volume data from migrating to another tier.

Note You can create and modify Storage Profiles within Storage Center, if you also have licensed Data Progression software.

Replays and Replay Profiles

applied to a volume to determine how often Replays will be taken

A Storage Center Replay is a point-in-time copy of data. As such, a Replay can be exposed and mapped to allow recovery of a datastore or virtual machine.

Replay Profiles determine a schedule for volume Replays. System-defined Replay Profiles include commonly used schedules for daily and weekly Replays. Custom Replay profiles can be created to schedule Replays appropriate to the data you want to back up.

View Volume

an Exposed (mapped) Replay

An exposed (mapped) Replay used to recover data from a point-in-time copy of data (Replay).

Data Progression

automatically migrating volume data based on the Storage Profile settings

Based on the Storage Profile applied to the volume and the Data Progression licensing, volume data automatically progresses on the Storage Center:

• On Storage Centers with licensed Data Progression, data can automatically migrate to different Storage Types within a Storage Tier, and also across Storage Tiers.

• On Storage Centers without licensed Data Progression, data can migrate only within a designated Storage Tier.

Dell Compellent Storage Term Description


Adding a Datastore

Use the Add Compellent Storage wizard to add Dell Compellent storage as a datastore. When you add Dell Compellent storage, you create and/or map a Dell Compellent volume on the Dell Compellent Storage Center. See Introduction to Dell Compellent Storage on page 12 for details on Storage Center volumes.

There are two options for adding Dell Compellent storage:

• Create a new Storage Center volume to use as a datastore.For this option, you must specify all required volume attributes.

• Map an existing Storage Center volume to use as a datastore.For this option, select an existing Storage Center volume to map up to an ESX host. Note that the existing volume must be a formatted VMFS datastore.

15

Adding a Datastore

To add a datastore using a new Dell Compellent volume

1 Right-click on an object in the Inventory that can be a parent of a datastore:

• Data Center

• Cluster

• Host

2 Select Manage Compellent Storage > Add Datastore. The Add Compellent Storage Wizard is displayed.

3 Under Host name, select the Storage Center on which to add the datastore, and click Next.

4 In the Select Action Type section, select Create New Compellent Volume, and click Next.

5 On the Volume page, provide the name, size, and folder for the new Compellent volume, and click Next.

6 Select a Storage Profile for the volume, and click Next.

Note Compellent recommends using the Recommended profile for most volumes.

7 Select a Replay profile for the volume, and click Next.

8 Specify the LUN for mapping the volume, and click Next.

9 Select the protocol for mapping, and click Next.

10 Specify the name, maximum file size and location for the datastore, and click Next.

11 Review the settings for the datastore, and click Finish.


To add a datastore using an existing Compellent volume

1 Right-click on an object in the Inventory that can be a parent of a datastore:

• Data Center

• Cluster

• Host

2 Select Manage Compellent Storage > Add Datastore. The Add Compellent Storage Wizard is displayed.

3 Select the Storage Center on which to add the datastore, and click Next.

4 Select Map Existing Compellent Volume, and click Next.

5 Locate and select an existing Compellent volume to map as a datastore, and click Next.

Note The Compellent volume must be a VMFS.



8 Specify the name and location for the datastore, and click Next.

9 Review the settings for the datastore, and click Finish.

17

Expanding a Datastore

Expanding a Datastore

Use the Expand Datastore Wizard to increase the size of a datastore.

To expand a datastore

1 Right-click on an existing datastore.

2 Select Manage Compellent Storage > Expand Datastore. The Expand Datastore Wizard is displayed.

3 Specify a new size for the volume, and click Next.

4 Review the new volume size setting, and click Finish.


Adding a Raw Device

Use the Add Raw Device Wizard to add a Raw Device Mapping (RDM) to a host or cluster. The wizard allows you to:

• Create a new raw device based on a new Compellent volume.

• Create a new raw device based on an existing Compellent volume.

• Map an existing raw device to additional hosts or clusters.

To add a new raw device using a new Compellent volume

1 Display either the Hosts and Clusters or Virtual Machines and Templates view.

2 Right-click on the virtual machine for which you want to add a raw device, and select Manage Compellent Storage > Add Raw Device. The Add Raw Device Wizard is displayed.

3 Select Add New Raw Device Mapping to Virtual Machine, specify a node for the virtual device, and click Next.

4 Select one or more hosts to which to map the device, and click Next.

5 Select Create New Compellent Volume, and click Next.

6 Provide the name, size, and folder for the new Compellent volume, and click Next.

7 Select a Storage Profile for the volume, and click Next.

Note Compellent recommends using the Recommended profile for most volumes.

8 Select a Replay profile for the volume, and click Next.



11 Select the compatibility mode for the raw device, and click Next.

12 Review the settings for the raw device, and click Finish.

19

Adding a Raw Device

To add a new raw device using an existing Compellent volume

1 Go to Hosts and Clusters or Virtual Machines and Templates in the Inventory.

2 Right-click on the virtual machine for which you want to add a raw device, and select Manage Compellent Storage > Add Raw Device. The Add Raw Device Wizard is displayed.

3 Select Add New Raw Device Mapping to Virtual Machine, specify a node for the virtual device, and click Next.



6 Find and select the volume you want to map as a raw device, and click Next.






To map an existing raw device to additional hosts or clusters

1 Go to Hosts and Clusters or Virtual Machines and Templates in the Inventory.

2 Right-click on the virtual machine that has a raw device you want to map to another host or cluster, and select Manage Compellent Storage > Add Raw Device. The Add Raw Device Wizard is displayed.

3 Select Map Existing Raw Device Mapping to Hosts or Clusters, and click Next.



6 Find and select the volume you want to map as a raw device, and click Next.


Note If the volume is already mapped to other hosts, the new mapping attempts to use the same LUN if available.




21

Removing a Datastore or a Raw Device

Removing a Datastore or a Raw Device

Use the Remove Storage Wizard to remove a datastore or a raw device mapping.

To remove a datastore

1 Right-click on a datastore and select Manage Compellent Storage > Remove Datastore. The Remove Storage Wizard is displayed.

2 Select the datastore to remove.

3 Select a retention option for the removed datastore, and click Next.

4 Review the settings for removing the datastore, and click Finish.

To remove a raw device

1 Right-click on a virtual machine and select Manage Compellent Storage > Remove Raw Device. The Remove Storage Wizard is displayed.

2 Select one or more raw devices to remove, and click Next.

3 Select a retention option for the removed devices, and click Next.

4 Review the settings for removing the raw device(s), and click Finish.


Configuring Data Instant Replays

Configuring Data Instant Replay means assigning a Replay profile to a datastore (Compellent volume) or all volumes associated with a virtual machine to establish a schedule for automatically taking Replays.

Only Replay profiles already on the Storage Center are available for selection. For instructions on creating or modifying Replay profiles, see either the Storage Center System Manager User Guide or the Enterprise Manager User Guide.

To configure Data Instant Replay for a datastore

1 Right-click on a datastore, and select Manage Compellent Storage > Configure Data Instant Replay.

2 Select one or more Replay profiles to apply to the datastore, and click Next.

3 Review the Replay profile settings, and click Finish.

To configure Data Instant Replay for all volumes on a virtual machine

1 Right-click on an a virtual machine, and select Manage Compellent Storage > Configure Data Instant Replay.

2 For each virtual machine volume, select one or more Replay profiles to apply to the volume and click Next.

3 Review the Replay profile settings for all volumes, and click Finish.

23

Creating a Replay

Creating a Replay

In addition to scheduled Replays taken automatically based on a Replay profile, you can also take an immediate (unscheduled) Replay. During Replay creation, you can specify an expiration time for the Replay(s). Note that if you create a Replay with the Never Expire option, the Replay remains on the Storage Center until it is manually expired.

To take a Replay of a datastore

1 Right-click on a datastore, and select Manage Compellent Storage > Create Replay.

2 Specify the expiration time for the Replay, as well as an optional description, and click Next.

3 Review the Replay settings, and click Finish.

To take a Replay of volumes associated with a virtual machine

1 Right-click on an a virtual machine, and select Manage Compellent Storage > Create Replay.

2 Specify the expiration time for the Replay(s), as well as an optional description, and click Next.

3 Optionally, create a temporary VMware snapshot of the virtual machine and specify whether to include the machine memory and/or quiesce the file system.

4 Review the Replay settings, and click Finish.


Expiring a Replay

When a Replay is created, an expiration time is assigned to the Replay. However, you can override the expiration time by explicitly expiring a Replay. Expiring a Replay removes the Replay from the Storage Center.

To expire Replays for a datastore

1 Right-click on a datastore, and select Manage Compellent Storage > Expire Replays.

2 Select the Replays you want to expire, and click Next.

3 Review the list of Replays to expire, and click Finish.

To expire Replays for a virtual machine

1 Right-click on an a virtual machine, and select Manage Compellent Storage > Expire Replays.

2 Select the Replays you want to expire, and click Next.

3 Review the list of Replays to expire, and click Finish.

25

Recovering a Datastore from a Storage Center Replay

Recovering a Datastore from a Storage Center Replay

Use the Recover VM Data from Replay to recover data from a Storage Center Replay. The wizard allows you to select the Replay from which you want to recover data and then exposes and maps the Replay to allow you to copy data for recovery.

To recover a datastore from a Storage Center Replay

1 Right-click on a datastore.

2 Select Manage Compellent Storage > Recover VM Data from Replay. The Storage Center Replay Recovery Wizard is displayed.

3 Select the one or more Replays from which you want to recover data, and click Next.

4 Select the host for accessing the Replay data, and click Next.

5 Specify a name and location for the recovered datastore, and click Next.

6 Select the LUN for mapping the Replay data, and click Next.

7 Review all the settings for recovering the data, and click Finish.


Recovering Raw Device Data for a Virtual Machine

To recover raw device data for a virtual machine from a Storage Center Replay

1 Right-click on a virtual machine.



4 Select the virtual machine for accessing the Replay data, and click Next.


27

Replicating a Datastore

Replicating a Datastore

Before Starting a Replication

• Make sure the source and target Storage Centers have iSCSI remote connections configured. See the Enterprise Manager User Guide for instructions on configuring iSCSI connections for replications.

• Make sure there is at least one Quality of Service (QoS) definition to control the replication. See the Enterprise Manager User Guide for instructions on creating and modifying QoS definitions.

Note The Compellent Integration for VMware vSphere provides the ability to start a replication. To manage replications, use the Compellent Enterprise Manager client.

Procedure

1 Right-click on the datastore you want to replicate, and select Manage Compellent Storage > Replicate Datastore.

2 Select the target (destination) Storage Center, and click Next.

3 Specify replication settings and a target location. See Replication Options on page 72 for details on replication options. Click Next.

4 Review the replication settings, and click Finish.

Viewing a Replication

Once a replication is started, you can view the replication on the Compellent Settings tab for a host.

29

4 Working with Virtual Machines

Introduction 30

Using the Expose VMFS Gold Image Option 31

Using the Create Virtual Machines using a Raw Device Image Option 33

Using the Deploy from Template Option 35

Recovering a Virtual Machine from a Replay 37


Introduction

Use the Provision Virtual Machines wizard to create one or more virtual machines on the Compellent Storage Center. The wizard offers three options for creating virtual machines on the Storage Center:

• Expose VMFS gold imageThis options assumes you have already 1) Created a VMFS datastore and deployed VMs on the datastore; 2) Taken a Replay of the VMFS datastore. See To create a virtual machine by exposing a VMFS gold image on page 31 for step-by-step instructions.

• Create virtual machines using raw device gold imageThis option assumes you have already 1) Created a raw device and deployed VMs on the raw device; 2) Taken a Replay of the raw device. See To create virtual machines using a raw device gold image as a boot volume on page 33 for step-by-step instructions.

• Deploy from templateThis option assumes you have already created a virtual machine template from which to deploy a new virtual machine. See To deploy one or more virtual machines from a template to an existing datastore on page 35 or To deploy one or more virtual machines from a template to a new datastore on page 36 for step-by-step instructions. For information on creating or updating a virtual machine template, refer to the VMware vSphere help topics on virtual machine templates.

31

Using the Expose VMFS Gold Image Option

Using the Expose VMFS Gold Image Option

To create a virtual machine by exposing a VMFS gold image

Prerequisites

Before using the Provision Virtual Machines wizard to expose a VMFS gold image:

1 Make sure there is a datastore with one or more VMware virtual machines on the datastore.

2 Create a new datastore for the virtual machines.

3 Deploy virtual machines on the new datastore.

4 Take a Replay of the prepared VMFS datastore.

5 Optionally, unmap the VMFS datastore.

Procedure

1 Expose the VMFS Gold Image:

a Right-click on an object that can be the parent of a virtual machine:

• Datacenter

• Cluster

• Host

b Select Manage Compellent Storage > Provision Virtual Machines.

c Select Expose VMFS gold image, and click Next.

d Select the Storage Center for the virtual machines, and click Next.

e If prompted to do so, select the host or cluster on which to run the virtual machines, and click Next.

f Browse to and select the datastore Replay to use as the VMFS gold image, and click Next.

g Select the LUN on which to map the Replay, and click Next.

h Select the mapping protocol, and click Next.

i Enter the view volume name, datastore name, and location for the exposed Replay and click Next.

j Review the virtual machine options and click Finish. A new datastore is created that contains the virtual machines.


2 Deploy Virtual Machines:

a Right-click on the datastore created in step 1, and select Browse Datastore.

b Optionally, rename the /root folder. Select the root folder (for example, /Template) and rename the folder to the name you want to use to organize the VMs.

c For each virtual machine in the datastore, right-click on the .vmx file and select Add to Inventory.

• Assign a new name to the machine.

• Select the inventory location.

• Select the host.

• Click Finish.

Repeat the Add to Inventory wizard for each virtual machine you want to deploy.

33

Using the Create Virtual Machines using a Raw Device Image Option

Using the Create Virtual Machines using a Raw Device Image Option

To create virtual machines using a raw device gold image as a boot volume

Prerequisites

Before using the Provision Virtual Machines wizard to create virtual machines using a raw device as a gold image:

1 Create a new raw device for the virtual machines.

2 Install an operating system on the raw device and perform any necessary gold image preparation, such as running sysprep on the device.

3 Take a Replay of the prepared raw device.

4 Optionally, unmap the raw device.

Procedure

1 Right-click on an object that can be the parent of a virtual machine:

• Datacenter

• Cluster

• Host

2 Select Manage Compellent Storage > Provision Virtual Machines.

3 Select Create virtual machines using raw device gold image, and click Next.

4 Select the Storage Center for the virtual machines, and click Next.

5 If prompted to do so, select the host or cluster on which to run the virtual machines, and click Next.

6 Specify a base name, quantity, and location for the new virtual machine(s), and click Next.

7 Optionally, specify the resource pool within which to run the virtual machine(s), and click Next.

8 Select the mapping protocol, and click Next.

9 Select the operating system and version for the virtual machine(s), and click Next.

10 Select the compatibility mode for the virtual machine(s), and click Next.

11 Specify settings for the virtual machine(s), and click Next.

Note You can customize the virtual machine settings for each machine later on in the wizard.

12 Enter a base name and location for the view volume(s), and click Next.

13 Select a datastore in which to store virtual machine files, and click Next.


14 Browse to and select the Replay to use as the gold image, and click Next.

15 Optionally, for each virtual machine, customize machine settings, and click Next.

16 Review the virtual machine options and click Finish.

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Using the Deploy from Template Option

Using the Deploy from Template Option

To deploy one or more virtual machines from a template to an existing datastore


• Datacenter

• Cluster

• Host


3 Select Deploy from template, and click Next.



6 Select a virtual machine template, and click Next.




10 Select Map Existing Datastore, and click Next.

11 Browse to and select a datastore in which to store the virtual machine(s) files, and click Next.




To deploy one or more virtual machines from a template to a new datastore


• Datacenter

• Cluster

• Host


3 Select Deploy from template, and click Next.



6 Select a virtual machine template, and click Next.




10 Select Create New Datastore, and click Next.

11 Enter a name, size and location for the new datastore, and click Next.

12 Select a Storage profile for the new volume, and click Next.

13 Select one or more Replay profiles for the volume, and click Next.

14 Enter a name, maximum file size, and inventory location for the new volume, and click Next.



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Recovering a Virtual Machine from a Replay

Recovering a Virtual Machine from a Replay

To recover a virtual machine from a Storage Center Replay

1 Right-click on a virtual machine.



4 Select the virtual machine for accessing the Replay data, and click Next.


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5 Viewing Compellent Storage Information

Viewing the Compellent View of Storage 40

Viewing the Compellent View of a Virtual Machine 44

Viewing the Compellent View of a Host 48

Viewing the Compellent Settings for a Host 52


Viewing the Compellent View of Storage

The Compellent Storage tab is available when you click on a Compellent volume in the Datastores Inventory. The tab displays information that applies to a Compellent datastore, as well as actions that can be performed from the Commands section.

The header information includes the following:

View Options

General

Label Description

Compellent Volume Name of the volume.

Size Size of the volume.

Folder Folder location of the volume.

Storage Center Storage Center on which the volume resides.

Label Description

Name Name of the volume.

Serial Number Volume serial number.


Compellent SN Compellent serial number of the volume.

Compellent Index Object index for the volume.


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Usage Statistics

Disk Folder Storage Center disk folder location.


Storage Type Storage type of the volume.

Status Current status for the volume, as well as the controller on which the volume is active.

Replay Profiles Replay profiles applied to the volume.

Storage Profile Storage profile for the volume.

Write Cache Enabled Indicates whether write cache is enabled for the volume.

Write Cache Status Status for enabled write cache.

Read Cache Enabled Indicates whether read cache is enabled for the volume.

Read Cache Status Status for the enabled read cache.

Read Ahead Enabled Indicates whether read-ahead is enabled.

Date Created Date and time volume was created.

Created By User that created the volume.

Date Updated Date volume was last updated.

Updated By User that last updated the volume.

Notes Descriptive notes for the volume.

Label Description

Label Description

Total volume space consumed Total space used on the volume.

Savings vs. basic RAID 10 storage Estimate of storage space saved using Compellent Dynamic Block Architecture compared to basic RAID storage.

Total disk space consumed Total disk space consumed by the volume.

Data Instant Replay overhead Total space consumed by volume Replays.

Tier 1 Storage Shows active volume space, active disk space, and Replay space for the volume on Tier 1.




Connectivity Info

Volume Replays

Volume Replications

Label Description

Server Port Server name and port.

Storage Port Storage port.

LUN Mapping LUN.

Type Protocol (FC or iSCSI).

Status Current status for the path.

Label Description

Freeze Time Time at which Replay was taken.

Expire Time Time at which the Replay automatically expires.

Replay Size Total space consumed by the Replay.

Description Name of the Replay profile that automatically created the Replay or a description of the Replay.

Label Description

Replication Name Name of the volume being replicated.

State Current state of the source volume.

Remote System Remote Storage Center to which the volume is replicating.

Synced Percentage of data currently in sync.

Remaining Amount of data (KB) that is not yet synced.

For each replication:

Name Name of the replication.

Type Replication type: Asynchronous Replication Volume.

Replication State Current state of the replication.

Remote System Target Storage Center for the replication.

Remote Volume Name Name of the volume on the target Storage Center.

Remote Volume Capacity Capacity of the volume on the target Storage Center.

QoS Definition Name of the QoS definition for the replication.

Replicate Active Replay Indicates whether the Replicate Active Replay option is enabled.

Deduplication Indicates whether the Deduplication option is enabled.

Using Live Volume Indicates whether the replication is a Live Volume.

CMM (Copy/Mirror/Migrate) State Current CMM state: Running

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Commands

Percent Synced Percentage of data currently in sync.

Blocks to Transfer Number of data blocks (KB) that are not yet synced.

Freeze Time Freeze time for each available active Replay on the source volume.

Label Description

For help on this command … Go to …

Creating a Replay on page 23

Expiring a Replay on page 24

Recovering a Datastore from a Storage Center Replay on page 25

Configuring Data Instant Replays on page 22


Viewing the Compellent View of a Virtual Machine

The Compellent View tab is available when you click on a Compellent virtual machine in the Hosts and Clusters Inventory. The tab displays information that applies to a Compellent datastore, as well as actions that can be performed from the Commands section.

For each volume mapped to the virtual machine, the header information includes the following:

Label Description



Datastore / RDM Identified as a Raw Device Mapping or a datastore name.

Storage Center Storage Center on which the RDM or datastore resides.

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View Options

General

Usage Statistics

Label Description























Label Description






Connectivity Info

Volume Replays

Volume Replications




Label Description

Label Description



LUN Mapping LUN.



Label Description





Label Description












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Commands










Label Description


Adding a Raw Device on page 18

Creating a Replay on page 23

Expiring a Replay on page 24

Recovering a Datastore from a Storage Center Replay on page 25


Viewing the Compellent View of a Host

The Compellent View tab is available when you click on a Compellent host in the Hosts and Clusters Inventory. The tab displays information that applies to a Compellent datastore, as well as actions that can be performed from the Commands section.

For each volume mapped to the virtual machine, the header information includes the following:

Label Description



LUN Identifies the LUN on which the volume is presented.

Storage Center Storage Center on which the RDM or datastore resides.

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View Options

General

Usage Statistics

Label Description























Label Description






Connectivity Info

Volume Replays

Volume Replications




Label Description

Label Description



LUN Mapping LUN.



Label Description





Label Description












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Commands










Label Description


Adding a Datastore on page 14

Removing a Datastore or a Raw Device on page 21

Working with Virtual Machines on page 29


Viewing the Compellent Settings for a Host

The Compellent Settings tab is available when you click on a Compellent host in the Hosts and Clusters Inventory. The tab displays information that applies to a Compellent host.

The header information includes the following:

Storage Details

Label Description

Storage Adapter Device Lists all storage adapter devices.

Name Shows the storage adapter name.

Type Shows the storage adapter type (FC or iSCSI).

WWN or iSCSI • For Fibre Channel, shows the World Wide Name (WWN).

• For iSCSI, shows the iSCSI Qualified Name (IQN).

Label Description

Storage Center Shows the Storage Center(s) for the adapter.

Storage Server Shows the storage server(s) for the adapter.

Status Shows the current status for the adapter.

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Viewing the Compellent Settings for a Host

Details

Commands

Connectivity Legend

Label Description

Adapter Model Shows the adapter model name.

WWN For Fibre Channel: Shows the World Wide Name (WWN).

iSCSI For iSCSI: Shows the iSCSI Qualified Name (IQN).

iSCSI Alias Shows the iSCSI alias name.

Device Shows the device name.

Server Shows the server to which the device is connected.

HBA Shows the host bus adapter (HBA) ID.

Status Shows the status.

Connectivity Shows the connection status.

Port Info • For FC, shows the port ID and node name.

• For iSCSI, shows the IP address.

SC Ports Shows the Storage Center ports.

Command Description

Refreshes the display.

• For FC interface, see Configuring FC Interfaces on page 54.

• For iSCSI interfaces, see Configuring iSCSI Interfaces on page 54

Icon Description

Connection is defined and fully configured to all Storage Centers.

Connections exist, but connections to some Storage Centers are not fully configured.

No FC connections are configured to any Storage Centers.

• If the Configure button is enabled, FC is zoned and visible from the Storage Centers but either the server or HBA is not defined.

• If the Configure button is disabled, FC is not zoned and not visible from the Storage Centers.

Connection is defined and fully configured to all Storage Centers.


Configuring FC Interfaces

1 Select an unconfigured FC connection.

2 Click Configure.

The configure operation performs the following:

• Creates server definition on the Storage Center if it does not exist.

• Creates corresponding HBA definitions associated with this server.

Configuring iSCSI Interfaces

1 Select an unconfigured iSCSI connection.

2 Click Configure.

The configure operation performs the following:

• Enables the iSCSI software initiator on ESX host side.

• Sets the ESX host firewall rules to enable iSCSI connections

• Configures iSCSI software initiator with Storage Center IP (IQN) targets (the targets are added to list of iSCSI static targets on ESX host).

• Creates a server definition on the Storage Center if it does not exist and creates corresponding HBA definition associated with this server.

Connections exist, but connections to some Storage Centers are not fully configured.

No iSCSI connections are configured to any Storage Centers.

• If the Configuration button is enabled, connections can be created and configured.

• If the Configuration button is disabled, iSCSI interface is not present on the Storage Centers.

Icon Description

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6 Wizard Panel Reference

Add Storage 56

Compatibility Mode 57

Creation Options 57

Customization 58

Datastore Lookup 59

Datastore Name 59

Datastore Options 60

Datastore Properties 60

Datastore Properties for VMFS Gold Image 61

Device Configuration 62

Expansion Size 62

Host / Cluster 63

Host Selection 64

Lookup Replay 64

Map Existing Compellent Volume 65

Map Existing Compellent Volume Replay 65

Mapping LUN 66

Name and Location 67

Operating System 67

Protocol Selection 68

Raw Device Properties 69

RDM Selection 69

Recovery VM Selection 70

Replay Profile 70

Replay Properties 71

Replay Selection 72


Replication Options 72

Resource Pool 73

Snapshot Options 74

Storage Center 75

Storage Profile 75

Template Selection 76

Virtual Machine Settings 77

Volume 77

Volume Retention 78

Add Storage

Use the Add Storage panel to select how you want to add storage.

• Create New Compellent Volume: Select this option to create a new Compellent volume to map.

• Map Existing Compellent Volume: Select this option to select an existing Compellent volume to map.

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Compatibility Mode

Use the Compatibility Mode panel to select the access mode for the virtual disk.

• Physical: Select this option to allow the guest operating system direct access to the hardware. VMware Snapshots of the virtual machine will not include this disk.

• Virtual: Select this option to provide the guest operating system virtual access to the disk. As such, VMware snapshots and other advanced features can be used. Note, however, that providing virtual access only may cause incompatibility with some Compellent applications.

Creation Options

Use the Creation Options panel to select how to create a virtual machine.


• Expose VMFS gold image: Select this option to expose an existing Replay of a VMFS datastore.

• Create virtual machines using raw device gold image: Select this option to create and map one or more Replays of a raw device gold image. This wizard allows for selecting an existing gold image raw device.

• Deploy from template: Select this option to use an existing virtual machine template to create a new virtual machine on the Storage Center.

Customization

Use the Customization panel to customize settings for the virtual machines. For each machine:

Customize virtual machine settings:

• Customize virtual machine settings: Select the machine for which you want to specify custom settings.

• Name: Specify a name for the virtual machine.

• CPU: Select the number of CPUs for the machine.

• Memory: Select the memory capacity for the machine.

• Network: Select the virtual networks to which to connect this machine.

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Datastore Lookup

Use the Datastore Lookup panel to select the datastore in which to store the virtual machine files.

Datastore Name

Use the Datastore Name panel to specify the name and location for the recovered datastore.

• Datastore Name: Specify a name for the datastore.

• Location: Select the location for the datastore.


Datastore Options

Use the Datastore Options panel to select a datastore to hold the virtual machine.

• Lookup for Existing Datastore: Select this option to use an existing datastore for the virtual machine.

• Create New Datastore: Select this option to create a new datastore for the virtual machine. Creating a new datastore includes creating a new Compellent volume and configuring a new datastore.

Datastore Properties

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Use the Datastore Properties panel to specify properties for the datastore.


• Maximum File Size: Select the VMFS formatting options for the datastore. The formatted block size affects the maximum file size the new datastore can support.

• Datastore Inventory Location: Select the location for the datastore.

Datastore Properties for VMFS Gold Image

Use the Datastore Properties panel to specify properties for the datastore.

• View Volume Name: Specify the Storage Center volume name for the exposed Replay.


• Location: Select the location for the datastore.


Device Configuration

Use the Device Configuration panel to select the option for adding a raw device.

• Add New Raw Device Mapping to Virtual Machine: Select this option to create a new volume to be mapped as an RDM to the virtual machine.

• Virtual Device Node: For the Add New Raw Device Mapping to Virtual Machine option, select the node for the raw device mapping.

• Map Existing Raw Device Mapping to Hosts and Clusters: Select this option to map an existing raw device mapping on this virtual machine to other hosts and/or clusters.

Expansion Size

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Use the Expansion Size panel to specify a new, expanded size for an existing volume.

• Current Volume Size: Displays the current size of the volume.

• New Volume Size: Specify a new, expanded size for the volume.

Host / Cluster

Use the Host/Cluster panel to select a host or cluster on which to run the virtual machine.


Host Selection

Use the Host Selection panel to select one or more hosts to which you want to map the storage.

Lookup Replay

Use the Lookup Replay panel to select the Storage Center Replay to use as a gold image for the virtual machine.

• Select Volume: Select the Storage Center volume for the Replay.

• Select Replay: Select the volume Replay.

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Map Existing Compellent Volume

Use the Map Existing Compellent Volume panel to select an existing Compellent volume to map as storage. The existing volume must already be formatted as VMFS storage when used for mapping a datastore.

• Select Volume: Search and select an existing Compellent volume to map.

Map Existing Compellent Volume Replay

Use the Map Existing Compellent Volume Replay panel to select an existing Compellent volume Replay to use for the virtual machine. The existing volume must already be formatted as VMFS storage when used for exposing a datastore.


• Select Volume: Search and select an existing Compellent volume.

• Select Replay: Select the volume Replay to use as the VMFS gold image or raw device to expose.

Mapping LUN

Use the Mapping LUN panel to select the LUN on which to map the Compellent volume.

• Select LUN Number: Select an available LUN.

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Name and Location

Use the Name and Location panel to specify the name and location for the virtual machines.

• Base Name: Enter a base name for the virtual machine(s) to create.

• Number of VMs to Create: Enter the number of virtual machines to create.

• Inventory Location: Select the inventory location for the virtual machine(s).

Operating System

Use the Operating System panel to specify the guest operating system for the virtual machines. The operating system type and version allows the Create Virtual Machine wizard to establish the correct defaults for operating system installation.


• Guest Operating System: Select the guest operating system for the virtual machine(s).

• Version: Select the guest operating system version.

Protocol Selection

Use the Protocol Selection panel to select the connection access protocol for the Compellent volume.

• Any available: Select this option to use any available path between the host and the storage.

• Fibre Channel: Select this option to restrict mapping to fibre channel paths only.

• iSCSI: Select this option to restrict mapping to iSCSI paths only.

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Raw Device Properties

Use the Raw Device Properties panel to specify settings for the raw device.

• Volume Base Name: Specify a base name for the exposed raw device Replay to use for the virtual machine.

• Use virtual machine name: Enable this option to use the virtual machine name as the base name for the exposed raw device Replay.

• Location: Select the location at which to place the created view volume(s).

RDM Selection

Use the RDM Selection panel to select the raw devices you want to remove.


Recovery VM Selection

Use the Recovery VM Selection panel to select the virtual machine you want to use to access the recovered data.

Replay Profile

Use the Replay Profile panel to select one or more Replay profile to apply to the Compellent volume. For information on Replay profiles, see Introduction on page 2.

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• Select Replay Profiles to be used for this volume: Select one or more Replay profiles to associate with the volume.

• Schedule: Displays the Replay schedule for the selected Replay profile.

Replay Properties

Use the Replay Properties panel to specify properties for the Replay.

• Expiration: Specify the time after which to expire the Replay.

• Never Expire: Enable this option for a Replay you do not want to automatically expire.

• Description: Optionally, enter a description for the Replay.


Replay Selection

Use the Select Replays panel to select the Replays.

• Select one or more Replays you want to delete (expire).

or

• Select one or more Replays you want to use to recover data. To recover data, select one Replay per volume you want to recover. If there are more than one RDMs mapped to the virutal machine, you must select one Replay for each volume to recover.

Replication Options

Use the Replication Options panel to select options for replicating a datastore.

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• QoS Definition: Select a Quality of Service (QoS) definition for the replication. For information on creating or modifying QoS definitions, see the Compellent Storage Center Enterprise Manager User Guide.

• Replicate Active Replay: Enable this option to copy all writes from the active Replay area of the volume. Note that replicating active Replays can require significant bandwidth.

• Deduplication: Enable this option to copy only the changed portions of the Replay history on the source volume, rather than all data captured in each Replay.

• Replication Target Location: Select location on the target Storage Center for the replicated datastore.

Resource Pool

Use the Resource Pool panel to select a resource pool in which to run the virtual machine.

• Select Resource Pool: Select the resource pool for the virtual machine.


Snapshot Options

Use the Snapshot Options panel to take a temporary VMware snapshot and specify options for the snapshot.

• Create Temporary VMware Snapshot: Select this option to take a temporary VMware snapshot before taking a Compellent Replay.

• Include memory: Select this option to capture the virtual machine memory in the snapshot.

• Quiesce file system (if available): Select this option to pause running processes in the guest operating system before taking the snapshot. This ensures that the file system is in a known, consistent state when the snapshot is taken. (Note that this option requires that VMware Tools are installed.) See VMware help for information on VMware snapshot options.

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Storage Center

Use the Storage Center panel to select the Storage Center on which to add storage.

• Select Storage Center: Select the Storage Center on which to add storage.

• Select Active Controller: Enable the Auto-Select option to allow the Storage Center to load-balance the system by automatically selecting the controller on which to add storage; otherwise select a specific controller for accessing the storage.

Storage Profile

Use the Storage Profile panel to select a Storage Profile for the Compellent volume. For information on Storage Profiles, see Introduction to Dell Compellent Storage on page 12.


Note Storage Profile options displayed are dependent on the Storage Center My Volume Defaults settings for the Storage Center user. For information on setting up volume defaults on the Storage Center, refer to the Storage Center System Manager User Guide.

• Recommended (All Tiers): Select this option for most volumes. The Recommended profile allows the system to automatically progress data between and across all storage tiers based on data type and usage.

• High Priority (Tier 1): Select this option to force volume data to remain in tier 1 storage.

• Medium Priority (Tier 2): Select this option to force volume data to remain in tier 2 storage.

• Low Priority (Tier 3): Select this option to force volume data to remain in tier 3 storage.

• Custom: If available, select a custom storage profile appropriate to the volume data.

Template Selection

Use the Template Selection panel to select a virtual machine template on which to base a new virtual machine.

• Select the virtual machine template: Select a VM template from the drop-down list of available templates.

• Details: Displays details for the currently selected VM template.

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Virtual Machine Settings

Use the Virtual Machine Settings panel to specify settings for the virtual machine(s).

• CPU: Select the number of CPUs for the machine(s).

• Memory: Select the memory capacity for the machine(s).

• Network: Select the network for the machine(s).

Volume

Use the Volume panel to specify attributes for a new Compellent volume.

• Volume Name: Specify a name for the Compellent volume.


• Size: Specify the volume size.

• Select Volume Folder: Select folder location for the volume.

Volume Retention

Use the Volume Retention panel to specify retention options for removing the volume or raw device.

• Unmap volume: Select this option to unmap the volume from the host. The unmapped volume remains on the Storage Center.

• Place in Recycle Bin: Select this option to unmap the volume from the host and move the volume to the Recycle Bin. If necessary, the volume can be recovered from the recycle bin at a later time (unless the Recycle Bin is emptied). To recover a volume from the Recycle Bin, use the Storage Center System Manager.

• Permanently delete: Select this option to unmap the volume and permanently delete the volume. Once permanently deleted, the volume cannot be recovered.

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