storage foundations - level 2000

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Welcome

The Storage Foundations - 2000 Level course is designed to provide the field service tech with the required knowledge to successfully service, repairand troubleshoot Dell storage products in DAS, NAS and SAN configurations.

Departments: Global Services and Deployment

Authors: Sean HeerenBruce Corbett

ContributingSources:

GDF

Contacting Dell: To contact Dell regarding issues with this training material, click the following link:Feedback .

Information in this document is subject to change without notice.

© Dell Inc. All rights reserved. ™ Rev. A00

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell , the DELL logo, and Dimension are trademarks of Dell Inc.; Intel , Pentium , and Celeron are registered trademarks ofIntel Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation; AMD , Opteron , and PowerNow! are registered trademarksof AMD Corporation.

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.

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Using this Material

The following sections provide information to help you effectively use this training material.

NavigationTo navigate through this training or reference material, select topics using either the left navigation menu or the Previous and Next buttons at the topright corner and bottom of each page.

Training is designed to be completed in the order in which the topics are presented. Refresher training may be completed in any order.

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A CE TIP indicates important information to help you work more effectively and to assist you in providing customers with the best experience.

A NOTE highlights information of special interest or importance to the reader. Failure to read the note will not result in physical harm to the reader,equipment, or data. A Note may not contain safety information, which must always be presented in cautions or warnings.

A CAUTION indicates either potential damage to equipment or loss of data and describes what could happen if the caution is ignored, how to avoidthe problem, or both.

A WARNING indicates a potential for personal injury or death.

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Course Introduction

ObjectivesAfter completing this course, you will be able to do the following:

Section 1 - Storage Fundamentals eLearning

Identify drive technologies within Dell Storage hardwareOutline the purpose of using RAID controller in Dell Storage hardwareList the types of storage environments commonly used in Dell Storage hardware and identify the limitations of each storage environment (DAS,NAS, and SAN)Identify iSCSI protocol concepts and how they relate to specific storage environmentsIdentify Fibre Channel concepts and how they relate to specific storage environmentsUnderstand switch architecture options for SAN fabricsIdentify the differences between hard zoning and soft zoningDifferentiate between old and new features of the LTO technologies

Section 2 - Storage Technologies Reference

Identify drive technologies within Dell Storage hardware

Outline the purpose of using RAID controller in Dell Storage hardwareList the types of storage environments commonly used in Dell Storage hardware and identify the limitations of each storage environment (DAS,NAS, and SAN)Identify iSCSI protocol concepts and how they relate to specific storage environmentsIdentify Fibre Channel concepts and how they relate to specific storage environmentsUnderstand Storage Host Adapters

Section 3 - Introduction to the PowerVault Storage Portfolio eLearning

Explain the position of Dell's PowerVault portfolioIdentify Dell PowerVault offerings in network attached storage, and direct-attached storage, disc backup, and tap back upDescribe the diagnostic tools which aid troubleshootingIdentify information resources that can be used to diagnose issuesLocate tools and information on support site for a systemIdentify common LED indicators and their statesList the procedures and diagnostics used to ensure the PowerVault Storage has been returned to operationStart Dell diagnostics for a given systemApply the Recovery Guru in MD Storage Manager to troubleshooting issuesFind the ITDT diagnostic tool to diagnose issues with tape productsRecall common 'Need-to-Know' callouts for PowerVault and the procedures which should be performedDescribe necessary safety precautionsIdentify useful tools for maintaining PowerVault systemsExplain some best practices for working on PowerVault hardwareOutline the best practices for disassembling PowerVault system partsAccess additional relevant information

Section 4 - PowerVault MD Reference

Identify the internal features and specifications of the Dell Powervault MD 3xxx productsIdentify any new technologies implemented and explain their significanceLocate and identify all external chassis features and connectorsIdentify and replace all field-replaceable units on Dell Powervault MD 3xxx productsConduct basic disassembly of the Dell Powervault MD 3xxx products using the removal procedure pages and interactive CBT providedIdentify Initialization and configuration of Dell Powervault MD 3xxxUpdate the firmware on the Dell Powervault MD 3xxx productsIdentify troubleshooting methods and tools specific to the Dell Powervault MD 3xxx productsIdentify supported configurations for all internal hardware devices and software


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Locate and reference any resources within EducateDell which can be used to troubleshoot Dell Powervault MD 3xxx products functionality issues

Section 5 - Linear Tape Open eLearning

Demonstrate increased knowledge and experience with tape backup productsRespond to LTO-6 queries and issues quickly and with confidenceAccess and use reference tools to install and replace LTO-6 partsUse tools to test and improve tape performance

Section 6 - PowerVault Tape Reference

Identify the internal features and specifications of the Dell Powervault Tape productsIdentify any new technologies implemented and explain their significanceLocate and identify all external chassis features and connectorsIdentify and replace all field-replaceable units on Dell Powervault Tape productsConduct basic disassembly of the Dell Powervault Tape products using the removal procedure pages and interactive CBT providedIdentify Initialization and configuration of Dell Powervault TapeUpdate the firmware on the Dell Powervault Tape productsIdentify troubleshooting methods and tools specific to the Dell Powervault Tape productsIdentify supported configurations for all internal hardware devices and softwareLocate and reference any resources within EducateDell which can be used to troubleshoot Dell Powervault Tape products functionality issues

Section 7 - PowerVault NAS/Fluid FS ReferenceIdentify the internal features and specifications of the Dell Powervault NAS/Fluid FS productsIdentify any new technologies implemented and explain their significanceLocate and identify all external chassis features and connectorsIdentify and replace all field-replaceable units on Dell Powervault NAS/Fluid FS productsConduct basic disassembly of the Dell Powervault NAS/Fluid FS products using the removal procedure pages and interactive CBT providedIdentify Initialization and configuration of Dell Powervault NAS/Fluid FSUpdate the firmware on the Dell Powervault NAS/Fluid FS productsIdentify troubleshooting methods and tools specific to the Dell Powervault NAS/Fluid FS productsIdentify supported configurations for all internal hardware devices and softwareLocate and reference any resources within EducateDell which can be used to troubleshoot Dell Powervault NAS/Fluid FS products functionalityissues

Section 8 - Dell Networking iSCSI and Fibre Channel switches ReferenceIdentify the internal features and specifications of the Dell Networking iSCSI and Fibre Channel switches productsIdentify any new technologies implemented and explain their significanceLocate and identify all external chassis features and connectorsIdentify and replace all field-replaceable units on Dell Networking iSCSI and Fibre Channel switches productsConduct basic disassembly of the Dell Networking iSCSI and Fibre Channel switches products using the removal procedure pages andinteractive CBT providedIdentify Initialization and configuration of Dell Networking iSCSI and Fibre Channel switchesUpdate the firmware on the Dell Networking iSCSI and Fibre Channel switches productsIdentify troubleshooting methods and tools specific to the Dell Networking iSCSI and Fibre Channel switches productsIdentify supported configurations for all internal hardware devices and softwareLocate and reference any resources within EducateDell which can be used to troubleshoot Dell Networking iSCSI and Fibre Channel switchesproducts functionality issues

Section 9 - Host Attach referenceiSCSI Host Configuration

Install and configure iSCSI Initiator/Target SW

Fibre Channel Host Configuration

Install and configure host attach

Section 9 - Boot from SAN reference


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Explain how booting from a SAN can benefit a customer's environment. Setup a SAN boot on a Dell storage device for the purpose oftroubleshooting a customer's environment.

Course Delivery MethodOnline reference guide

PrerequisitesCompletion of the following [self-study modules or ILT or eLearning modules]:

Required MaterialsAccess to the Dell intranetComputer

ActivitiesWeb-based learning

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Storage Fundamentals eLearning

Click the Launch button below to view the Dell's Storage Portfolio Overview.

This Dell Foundations course is designed to provide collective information across all storage environments. By the end of this course, you'll be able toidentify drive technologies within Dell Storage hardware, outline the purpose of using RAID controller in Dell Storage hardware, list the types of storageenvironments commonly used in Dell Storage hardware and identify the limitations of each storage environment (DAS, NAS, and SAN), identify iSCSIprotocol concepts and how they relate to specific storage environments, identify Fibre Channel concepts and how they relate to specific storage

environments, understand switch architecture options for SAN fabrics, identify the differences between hard zoning and soft zoning, and differentiatebetween old and new features of the LTO technologies

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Storage Types and Technologies

Computer data storage is a technology consisting of computer components and recording media used to retain digital data. It is a core function andfundamental component of computers.

Generally, the lower a storage is in the hierarchy, the lesser its bandwidth and the greater its access latency is from the CPU. This traditional division ofstorage to primary, secondary, tertiary and off-line storage is also guided by cost per bit.

"Storage" consists of storage devices and their media not directly accessible by the CPU (secondary or tertiary storage), typically hard disk drives,optical disc drives, and other devices.

Storage typically falls into two categories of storage types, optical and magnetic.

For the purpose of this course, we will focus on magnetic storage types. Optical storage types do not fall within the scope of this course.

Magnetic StorageMagnetic storage uses different patterns of magnetization on a magnetically coated surface to store information. Magnetic storage is non-volatile. Theinformation is accessed using one or more read/write heads which may contain one or more recording transducers. A read/write head only covers a partof the surface so that the head or medium or both must be moved relative to another in order to access data. In modern computers, magnetic storage

will take these forms:

Magnetic diskHard disk drive , used for secondary storage

Magnetic tape , used for tertiary and off-line storage

Redundancy While a group of bits malfunction may be resolved by error detection and correction mechanisms), storage device malfunction requires differentsolutions. The following solutions are commonly used and valid for most storage devices:

Device mirroring (replication) - A common solution to the problem is constantly maintaining an identical copy of device content on anotherdevice (typically of a same type). The downside is that this doubles the storage, and both devices (copies) need to be updated simultaneously

with some overhead and possibly some delays. The upside is possible concurrent read of a same data group by two independent processes, which increases performance. When one of the replicated devices is detected to be defective, the other copy is still operational, and is beingutilized to generate a new copy on another device (usually available operational in a pool of stand-by devices for this purpose).Redundant array of independent disks (RAID) - This method generalizes the device mirroring above by allowing one device in a group of Ndevices to fail and be replaced with content restored (Device mirroring is RAID with N=2). RAID groups of N=5 or N=6 are common. N>2 savesstorage, when comparing with N=2, at the cost of more processing during both regular operation (with often reduced performance) and defectivedevice replacement.

Device mirroring and typical RAID are designed to handle a single device failure in the RAID group of devices. However, if a second failure occurs beforethe RAID group is completely repaired from the first failure, then data can be lost. The probability of a single failure is typically small. Thus the probabilityof two failures in a same RAID group in time proximity is much smaller (approximately the probability squared, i.e., multiplied by itself). If a databasecannot tolerate even such smaller probability of data loss, then the RAID group itself is replicated (mirrored). In many cases such mirroring is donegeographically remotely, in a different storage array, to handle also recovery from disasters (see disaster recovery above).


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Network Connectivity A secondary or tertiary storage may connect to a computer utilizing computer networks. This concept does not pertain to the primary storage, which isshared between multiple processors to a lesser degree.

Direct-attached storage (DAS) is a traditional mass storage, that does not use any network. This is still a most popular approach. This retronym was coined recently, together with NAS and SAN.Network-attached storage (NAS) is mass storage attached to a computer which another computer can access at file level over a local areanetwork, a private wide area network, or in the case of online file storage, over the Internet. NAS is commonly associated with the NFS andCIFS/SMB protocols.Storage area network (SAN) is a specialized network, that provides other computers with storage capacity. The crucial difference between NASand SAN is the former presents and manages file systems to client computers, whilst the latter provides access at block-addressing (raw) level,leaving it to attaching systems to manage data or file systems within the provided capacity. SAN is commonly associated with Fibre Channelnetworks.

Robotic StorageLarge quantities of individual magnetic tapes, and optical or magneto-optical discs may be stored in robotic tertiary storage devices. In tape storage fieldthey are known as tape libraries, and in optical storage field optical jukeboxes, or optical disk libraries per analogy. Smallest forms of either technologycontaining just one drive device are referred to as autoloaders or autochangers.

Robotic-access storage devices may have a number of slots, each holding individual media, and usually one or more picking robots that traverse theslots and load media to built-in drives. The arrangement of the slots and picking devices affects performance. Important characteristics of such storageare possible expansion options: adding slots, modules, drives, robots. Tape libraries may have from 10 to more than 100,000 slots, and provideterabytes or petabytes of near-line information. Optical jukeboxes are somewhat smaller solutions, up to 1,000 slots.

Robotic storage is used for backups, and for high-capacity archives in imaging, medical, and video industries. Hierarchical storage management is amost known archiving strategy of automatically migrating long-unused files from fast hard disk storage to libraries or jukeboxes. If the files are needed,they are retrieved back to disk.

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Drive Technologies

This section covers the hard drive technologies that are used with Dell storage.

SATA Serial ATA (SATA) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives and optical drives.Serial ATA replaces the older AT Attachment standard (later referred to as Parallel ATA or PATA), offering several advantages over the older interface:reduced cable size and cost (seven conductors instead of 40), native hot swapping, faster data transfer through higher signalling rates, and moreefficient transfer through an (optional) I/O queuing protocol.

SASSerial Attached SCSI (SAS) is a point-to-point serial protocol that moves data to and from computer storage devices such as hard drives and tapedrives. SAS replaces the older Parallel SCSI (Small Computer System Interface), bus technology that first appeared in the mid-1980s. SAS, like itspredecessor, uses the standard SCSI command set. SAS offers backward compatibility with SATA, versions 2 and later. This allows for SATA drives tobe connected to SAS backplanes. The reverse, connecting SAS drives to SATA backplanes, is not possible.[

A typical Serial Attached SCSI system consists of the following basic components:

An Initiator : a device that originates device-service and task-management requests for processing by a target device and receives responses forthe same requests from other target devices. Initiators may be provided as an on-board component on the motherboard (as is the case withmany server-oriented motherboards) or as an add-on host bus adapter.

1.

A Target : a device containing logical units and target ports that receives device service and task management requests for processing and sendsresponses for the same requests to initiator devices. A target device could be a hard disk or a disk array system.

2.

A Service Delivery Subsystem : the part of an I/O system that transmits information between an initiator and a target. Typically cablesconnecting an initiator and target with or without expanders and backplanes constitute a service delivery subsystem.

3.

Expanders : devices that form part of a service delivery subsystem and facilitate communication between SAS devices. Expanders facilitate theconnection of multiple SAS End devices to a single initiator port.

4.

Nearline SASNearline SAS is a new offering for hard disk drives. It is marketed as an option between Enterprise SATA and Enterprise SAS drives. It uses themechanics an Enterprise SATA drive but integrates the features of a SAS interface.

Solid State Drives (SSD)Hard Disk Drives, the primary storage device for IT infrastructure is now augmented by the introduction of Solid State Drives (SSDs). SSD is differentfrom HDD in that it is not an electro-mechanical device and is based on non-volatile flash memory. This device supports a 3Gb SATA interface at RTS forthe "Value" SSD product.

The primary definition of the value of SSD is not based on $/GB of a HDD, but more the value of $/IOPS, $/Watt and Watt/GB due to the higherperformance and low power usage that SSD delivers over HDD.

SSD is positioned as a key part of a solution sell, rather than an up up-sell from a standard hard drive at a premium price. It has improved durability,power usage and significant random read performance improvement over traditional HDD's.

Here are some of the features of the SSD:

Faster - The SSD has much faster access times than a conventional hard drive. In some tests, the Windows �® XP operating system loadedalmost twice as fast.More reliable - Since the drive has no moving parts, it is more reliable than standard hard drives or other drives that require motion to work.More durable - No moving parts also means less chance of damage from bumps or impacts.Improved power savings - Conventional hard drives require motors to spin the platters that store data. Eliminating the motor on an SSD createspower savings, which in turn means longer battery life.

Self-Encrypting Drives (SED)Dell is shipping optional Self-Encrypting Drives (SED) with servers and storage subsystems. The SED feature provides the ability to encrypt data withinthe drive itself rather than in other components of the server or storage subsystem. Putting cryptographic operations in the drive has a number of

benefits. The contents of the self-encrypting drives are always encrypted and the encryption keys are themselves encrypted and protected in hardwarethat cannot be observed by other parts of the system. Because encryption is handled in the drive, overall system performance is not affected and is notsubject to attacks targeting other components of the system. Additionally, the repurposing of drives at either redeployment or end-of-life has asignificantly lower cost than other options.

The SED drives introduce the concept of two types of keys - encryption and authentication. The encryption key is never exposed outside the drive andthus the key needs no administration. However the authentication key, also referred to as locking key, involves some degree of system levelmanagement support. As SED inherently do not participate in authentication key management, the Dell PowerEdge RAID Controller (PERC) H700 andH800 adapter cards are designed with the “on-controller key management” concept providing this critical functionality when SED are used in DellPowerEdge servers.

The PERC H700 and H800 cards are designed to support one authentication key per controller which resides in the controller memory and it can bemanaged by the user. The authentication key is used by the controller to lock and unlock access to SED. The H700 and H800 adapter cards allow users


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to enable, change or disable drive security as well as import a foreign configuration. Furthermore, secured virtual disks created on a PERC H700 orH800 card can be migrated to another PERC H700 or H800 card.

Dell's solution provides protection to the data in the event of theft or loss of drives. SED help to ensure that data is secure with drive-level encryption, soeven if a drive is removed from its storage subsystem or the server in which it is housed, the data on the drive is encrypted and rendered useless toanyone who attempts to access it without the appropriate security authorization. So go ahead and deploy the latest Dell security solutions.

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Tape Storage Technology

This section covers the tape drive technologies that are used with Dell storage.

Digital Linear Tape (DLT)Digital Linear Tape (DLT) is a magnetic tape data storage technology developed by Digital Equipment Corporation (DEC) from 1984 onwards. In 1994,the technology was purchased by Quantum Corporation, who manufactures drives and licenses the technology and trademark. A variant with highercapacity is called Super DLT (SDLT).

DLT uses linear serpentine recording with multiple tracks on half-inch (12.7 mm) wide tape. The cartridges contain a single reel and the tape is pulled outof the cartridge by means of a leader tape attached to the take-up reel inside the drive. The drive leader tape is buckled to the cartridge leader during theload process. Tape speed and tension are controlled electronically via the reel motors; there is no capstan. The tape is guided by 4 to 6 rollers that touchonly the back side of the tape. Tape material is metal particle tape (MP/AMP).

SDLT adds an optical servo system that reads servo patterns on the back of the tape to keep the data tracks on the front of the tape correctly aligned with the read/write heads. This is important for newer tape media, which have very thin, dense data tracks; 256, 384 and 768 data tracks on a1⁄2-inch-wide (13 mm) tape are available.

DLT7000 and 8000 tilt the head forward and backward to reduce crosstalk between adjacent tracks through azimuth; this is called Symmetric PhaseRecording.

All (S)DLT drives support hardware data compression. The often-used compression factor of 2:1 is optimistic and generally only achievable for text data;a more realistic factor for a file system is 1.3:1 to 1.5:1, although drive compression applied to pre-compressed data can actually make the written datalarger than having compression turned off in the tape drive.

Linear Tape Open (LTO)LTO Ultrium was developed as a replacement for DLT and has a similar design of 1/2-inch wide tape in a (slightly smaller) single reel cartridge. Thismade it easy for robotic tape library vendors to convert their DLT libraries into LTO libraries.

The standard form-factor of LTO technology goes by the name Ultrium, the original version of which was released in 2000 and could hold 100 GB of datain a cartridge. LTO version 6 released in 2012 can hold 2.5 TB in a cartridge of the same size.

Upon introduction, LTO Ultrium rapidly defined the super tape market segment and has consistently been the best-selling super tape format. LTO is widely used with small and large computer systems, especially for backup.

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iSCSI Technology

This section links to iSCSI Technology training. Click the icon to view the iSCSI training page in a new window.

iSCSI Technology

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Fibre Channel Technology

This section links to "Boot from iSCSI" training. Click the icon to view the Fibre Channel training page in a new window.

Fibre Channel Theory

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Direct Attached Storage (DAS)

Enterprise storage is becoming increasingly important to most businesses. The continued increase in data storage requirements means that ourcustomers need storage solutions that provide scalability, high performance and reliability. They must also be cost effective.

These considerations have resulted in three different approaches to providing external storage for the servers used in the business IT environment:

Direct Attach Storage (DAS)

Network Attached Storage (NAS)Storage Area Networks (SAN)

Let's briefly consider these storage solutions and identify the benefits limitations of each option.

Direct Attach Storage (DAS)Most servers will boot from internal hard drives that are accessable and controlled only by that server. These internal hard drives are Direct AttachedStorage and may use a variety of protocols and standards (PCI, SCSI, SAS, SATA, RAID etc).

When the storage requirements for server exceed the capacity that can accommodated internally within the server, additional storage can be provided byattaching an external disk enclosure. In a DAS storage solution, this external disk enclosure is dedicated to a single server. A suitable storage controllercontroller and cabling will be required to address the external DAS storage.

The diagram below shows a typical DAS environment:

Fig: Direct Attach Storage (DAS)

DAS is an inexpensive and simple solution which is easy to implement for small deployments, but scalability is limited and since each server includes itsown storage controller it can be difficult to manage. An environment with a lot of DAS storage will result in numerous islands of storage, each of whichhas to be managed independantly. This can become complicated and expensive to maintain in a larger organisation. It also means that a backup andrecovery strategy is needed that will protect each of these islands of storage. Hardware redundancy for disks and controllers must also be considered foreach server so that server up-time and reliabiity are maintained.

DAS Summary of Advantages and DisadvantagesAdvantages Disadvantages

Minimum hardware cost Limited scalability

Easy to setup Potential single points of failure at each server

Easy to manage for small environments Difficult to manage for larger environments


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Network Attached Storage (NAS)

Network Attached Storage (NAS)Network Attached Storage (NAS) servers (also known as Filers) are self-contained, intelligent devices that attach directly to an existing LAN. A filesystem is located and managed on the NAS device and data is transferred to clients over industry standard network protocols (such as TCP/IP) usingindustry standard file sharing protocols (SMB/CIFS, NCP, NFS, AFP or HTTP). This intelligence on the NAS device enables true data sharing amongheterogeneous network clients.

Their highly efficient, optimized architecture allows them to offload many of the file management operations currently performed by general-purposeapplication servers, which handle file service activities less efficiently than filers. Additionally, because these filers attach directly to a network rather thanto an application server, they can be added without bringing down the network or an application server. The only thing clients access on a filer is storage.There are no applications on the appliance that may 'bog-down' the system. Filers can be added to existing LAN or WAN networks to scale up theexisting storage capacity of multiple individual systems or to consolidate existing storage in complex multi-server configurations.

Management of NAS Appliances can be performed from anywhere on your network or over the Internet using a standard web browser or alternativemanagement tools. NAS appliances are so simple, there is often no need to understand or learn a complex operating system and almost anyone canadminister one.

Some NAS filer solutions are limited in their scalability and the filer itself can sometimes be a performance bottleneck. Also, whilst NAS solutions arevery good as filers, they often do not work well with applications that require block-level storage rather than file level storage such as:

DatabasesMessaging solutionsLarge file transfers

The diagram below shows a typical DAS environment:

Fig: Network Attach Storage (NAS)

NAS Summary of Advantages and DisadvantagesAdvantages Disadvantages

Very efficient file storage and management Not well suited to applications that require block-level storageEasily added to existing LANs and can co-exist with SANs Limited scalability

Easy to manage Relies on TCP/IP networks

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Storage Area Network (SAN)

A SAN is a networked storage infrastructure designed to provide a flexible environment in which servers may be detached from storage devices. SANsconnect servers to storage devices by using either a Fibre Channel (FC) switch fabric technology or more recently by using iSCSI over an Ethernet LANarchictecture.

SAN solutions provide the following advantages:

Easy access and protection for critical business dataShared access to a pool of storage for large numbers of serversEnsure highest levels of fault tolerance, reliability and business continuityFast and efficient access to storage resourcesCentralised and comprehensive storage resource managementHigh levels of scalabilityCan use a separate Fibre Channel (FC) network for storage, reducing the load on the LAN infrastructure.Allows centralised backup strategy for critical data

The diagram below shows a typical SAN environment:

Fig: Storage Area Network (SAN)

SAN Summary of Advantages and DisadvantagesAdvantages Disadvantages

Exceptional performance Higher initial cost

Extremely fault tolerant and highly reliable More complex to deploy

Highly scalable Vendor specific technology

Easy, centralised managment Vendor specific management tools

Utilises separate network for storage - can reduce load on LAN Fibre Channel technology skills may be required

Shared access to storage pools, backup, restore and Disaster Recovery (DR) services


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iSCSI HBAs

In this section there are links to the individual service manuals for each of the iSCSI HBA peripherals. Click on each icon to view the product trainingpage in a new window.

Broadcom NetExtreme II Series EthernetAdapters

Intel 1G 10G Ethernet adapters QLogic

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Fibre Channel HBAs

In this section there are links to the individual service manuals for each of the FC HBA peripherals. Click on each icon to view the product training pagein a new window.

Brocade Emulex QLogic

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Storage Portfolio eLearning


This Dell Foundations course is designed to provide collective information across all storage environments. By the end of this course, you'll be able toexplain the position of Dell's PowerVault portfolio, identify Dell PowerVault offerings in network attached storage, and direct-attached storage, discbackup, and tap back up, describe the diagnostic tools which aid troubleshooting, and list the procedures and diagnostics used to ensure the PowerVaultStorage has been returned to operation.

Note: This module does not have any audio.

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PowerVault MD Portfolio

In this section there are links to the individual service manuals for each of the PowerVault MD series storage enclosures. Click on each icon to view theproduct training page in a new window.

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PLEASE NOTE - Pay close attention to the Field Service Information and Troubleshooting within this reference.

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Currently Shipping

MD3200, MD3200i, MD3220, MD3220i MD3260, 3260i, MD3660i, MD3660f, MD3060e,MD3960, MD3960e MD3600i, MD3620i

MD3600f, MD3620f

Legacy


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MD3000 MD3000i

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Linear Tape Open eLearning


This Dell Foundations course is designed to provide collective information across all LTO storage environments. At the end of this course, you will beable to: Demonstrate increased knowledge and experience with tape backup products. Respond to LTO-6 queries and issues quickly and withconfidence. Access and use reference tools to install and replace LTO-6 parts.Use tools to test and improve tape performance. This course will take you approximately one hour to complete.

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PowerVault Tape Portfolio

In this section there are links to the individual service manuals for each of the PowerVault tape enclosures. Click on each icon to view the producttraining page in a new window.

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Currently Shipping

PowerVault TL2000, TL4000 PowerVault ML6000, ML6010, ML6020, ML6030(Current and Legacy) PowerVault 124T

LTO6 Technology

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PowerVault NAS/Fluid FS Portfolio

In this section there are links to the individual service manuals for each of the PowerVault NAS and FS series storage enclosures. Click on each icon toview the product training page in a new window.

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PowerVault NAS

NX3600, NX3610 Fluid FS NX3300

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Dell Networking iSCSI Switches

In this section there are links to the individual service manuals for each of the Dell iSCSI switches. Click on each icon to view the product training page ina new window.

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Currently Shipping Dell Networking iSCSI Switches

N-Series Switches E-Series Switches S-Series Switches

Z-Series Switches 6200 Series Switches 7000 Series Switches


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8100 Series Switches

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Dell Fibre Channel Switches

In this section there are links to the individual service manuals for each of the Dell Fibre Channel switches. Click on each icon to view the producttraining page in a new window.

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Currently Shipping Fibre Channel SAN Switches

Brocade 300, 5100, 5300 Series

Dell Brocade High-Performance Gen 5 Fibre Channel Switches

Brocade M5424 Brocade 4016 Brocade 4424


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Brocade M6505 Brocade B6505, B6510, B6520, DCX8510

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Boot from iSCSI SAN

This section links to "Boot from iSCSI" training. Click the icon to view the iSCSI training page in a new window.

Boot from iSCSI

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Boot from FC SAN

The “Boot from SAN” function allows servers to use an external SAN volume as the server’s boot volume. This removes the requirement that serverscontain internal DAS drives.

Boot from SAN offers the advantages of reduced equipment costs along with other advantages such as:

Server Consolidation.Power, Cooling and Physical Space savings.Centralized Management.Protection of boot and non-boot data.Rapid Disaster Recovery.Rapid Redeployment.

Considerations for Boot from SAN include:

HBA BIOS needs to be configured to boot from storage.The server BIOS needs to be configured to boot from the HBA.When loading the O/S, the O/S may need to be configured to boot from a remote server and additional drivers may need to be loaded.

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Prerequisites

To implement Boot-from-SAN:

The server must have an HBA equipped with a BIOS that can support booting from a storage device attached to the SAN.Typically, the host needs to have a boot order of CD-ROM, Diskette, and Hard Drive (HBA set to drive 0).The SAN must be installed and configured, and the storage visible to the host.

The storage system must have at least one available LUN for booting the server(s).The storage must be configured to allow the server exclusive access to the LUN.

For iSCSI, access is typically assigned via the iSCSI HBA logging into the iSCSI I/O port (IP address) on the Storage Center.For Fibre Channel, the HBA is set to boot from the WWN specified in the Server-to-Volume mapping.

For High Availability (HA) configurations, such as multiport HBAs, setups must have only one path initially from the server to the storage visible tothe OS during OS installation.

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Conguration Steps

The following discusses the basic steps in setting up a Boot from SAN volume. All HBA settings are specific to Qlogic cards.

On the Server:

Power on the server and enter the HBA BIOS by pressing CTRL-QEnable the adapterLeave the server at the BIOS screen

On the SAN:

Login to the SANCreate a VolumeCreate a Server using the FC HBAMap the volume to the server as LUN 0

Return to the HBA BIOS screen on the server:

Complete the HBA BIOS configurationReboot the serverEnter the servers BIOS and change the boot orderReboot the serverLoad the OS

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Additional Resources

Online Product DocumentationThe following documentation for the is available on support.us.dell.com/manuals :

In addition to the provided materials, reference material may be found at http://support.dell.com and/or http://salesedge/browse .

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