user guide for euronas enterprise virtualization...

User Guide for eEVOS P a g e | 1

euroNAS GmbH ©2005-2017

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User Guide for euroNAS Enterprise Virtualization OS

All-in-One Virtualization, Storage and Backup Solution

©euroNAS GmbH

Rev. 2017-03-03

March 2017



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Contents

Introduction ....................................................................................................................................... 4 Connecting for the first time ........................................................................................................... 4 System info ....................................................................................................................................... 5 System Administration..................................................................................................................... 6 Share Management ........................................................................................................................... 12 Users & Groups ................................................................................................................................ 13 Network .............................................................................................................................................. 14 Drive Management ............................................................................................................................ 17 Hardware Raid Manager ................................................................................................................... 20 Software Raid .................................................................................................................................... 21 Hybrid Cache .................................................................................................................................... 27 APC UPS Configuration ................................................................................................................... 29 Services ............................................................................................................................................. 31 Event Logs ........................................................................................................................................ 32 Cluster Creation ................................................................................................................................ 33 Cluster Drive Creation ...................................................................................................................... 36 ISO Management .............................................................................................................................. 37 VM Creation and Management ........................................................................................................ 38 Snapshot Management .................................................................................................................... 41 VM Cloning ........................................................................................................................................ 42 VM Backup ........................................................................................................................................ 43 Server Statistics ................................................................................................................................ 47

VM Statistics ..................................................................................................................................... 49



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INTRODUCTION

Congratulations on choosing euroNAS product euroNAS GmbH is a leading provider of an advanced storage and virtualization operating

system. Founded with the vision of providing state of the art, customized storage solutions

to enterprises of all sizes, euroNAS has helped businesses grow by providing maximum data

security, unbeatable savings and powerful features. Our goal is to be the technology leader

in storage solutions.

Some facts about us:

Founded in 2005 by some of the industry’s top engineering talents with decades of experience in the most demanding enterprise environments.

Number one choice for many data centers, small and mid-size companies, with thousands of installations worldwide serving petabytes of storage.

About Enterprise Virtualization OS

If you’re running a virtualized environment or simply trying to meet the demands of the 24-

hour business cycle, you cannot afford downtime.

euroNAS Enterprise Virtualization OS (eEVOS) is a complete hyper-converged storage and

virtualization solution providing you great performance, high-availability, and manageability

features.

For your VMs, you will get the highest level of redundancy, data security, reliability and

availability possible, even in the event of a complete server failure. It is not locked to any

specific hardware giving you full freedom for implementation and future expansions.

You can run it as individual servers or as highly available cluster.

It contains all enterprise tools necessary for easy management and business continuity such

as

Easy creation and management of virtual machines

Built-in high-performance hypervisor

Fully integrated setup and management

Move VMs between the nodes on the fly

Synchronous Mirror of your VMs between the nodes

Cluster-Aware Snapshots

Intelligent VM cloning

VM Failover in case of node failure

SSD caching for maximal performance

Integrated Backup and Restore software for your virtual Machines



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COPYRIGHT © 2005-2017 euroNAS GmbH All rights reserved. euroNAS GmbH provides this publication “as is” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability

or fitness for a particular purpose. euroNAS GmbH and its subsidiaries reserve the right to

revise this publication and to make changes to the content hereof without the obligation of

euroNAS GmbH to notify any person of such revision or changes.



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HARDWARE RECOMMENDATIONS

eEVOS is not locked to any specific hardware giving you full freedom for implementation and future expansions. You can use standard server hardware

CPU

For the best performance we recommend multicore Intel XEON or AMD Opteron CPUs.

Dual or Quad CPU Configurations will provider even better performance.

CPUs must support hardware-assisted virtualization (VT-x and AMD-V).

All nodes should have identical CPUs in order to support the migration of the VMs from one

node to other without downtime.

Installation Disk

For best performance the Enterprise Virtualization OS should be installed on an SSD with

the minimum size of 20 GB. Installation disk is kept separate from data – it is not possible to install VMs on the installation disk.

Data Disk Data disk is exclusively used for the OS, for data at least one additional disk is needed. Data

disk can be a simple disk or software / hardware RAID based arrays.

Hybrid Cache functionality enables a mix of slower SATA or SAS disks with the SSD or

NVMe disks (check SSD Cache)

System RAM The server should have at least 16 GB of RAM

Networking (single node) If used in single mode (no clustering) one single networking port is sufficient. Bonding

network ports will provide higher redundancy and performance.

Networking (cluster high-availability) Cluster mode differentiates between corporate and replication network.

- All network controllers that are not used for replication are in corporate network.

They are used for communication to the outside world and for the heartbeat between

the nodes

- Network cards that are used for mirroring between the servers are part of the

replication network

For best performance and high availability, the server should have 4 individual Network

Interface Cards with a minimum bandwidth of 1 Gigabit (10 Gigabit recommended).

They should be configured as two separate bonded networks. One of the bonds should be connected to the Corporate Network. The other bond should be connected to the other

server on a private Replication Network

For the Replication Network we recommend 10 Gigabit network.

If dual-port cards are used each port on the card should be assigned to a separate bond so



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that the failure of one card does not break the entire bond

DHCP should not be used unless static leases are provided

Using DHCP without static leases will cause the cluster to fail on IP address change and is

therefore not recommended for production use.



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CONNECTING TO THE EEVOS SERVER FOR THE FIRST TIME

eEVOS is preset to acquire an IP address from a DHCP server. If you connect the monitor to

the server – the IP address will be shown.

For accessing the administration interface enter the following URL into your internet browser:

http://IP Address of the Server:3733

It is important to note that eEVOS uses default port 3733.



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SYSTEM INFO

Under System Information you find the short overview of the important information about the server.

Server name

Version

Time Hardware information

Raid status

CPU usage

System memory

Swap partition Network info with current transfer rate



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SYSTEM ADMINISTRATION

Activation eEVOS needs to be activated before trial version expires. Serial number is generated out of

Hardware and is unique to this system. Please keep in mind that on certain hardware changes this serial number can change and that a new activation code will be required.

Grace period is 7 days after which all services will be terminated on reboot. You can request

a new code by contacting [email protected] or [email protected] and providing the

license number and a new serial number.

Debug Debug should be used only if advised by technical support

mailto:[email protected]

mailto:[email protected]



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Save system settings

All server settings (user, TCP/IP setting etc.) can be backed up in case of system failure.

NOTE: Even without these settings, new eEVOS installation will automatically import disks,

RAID, shares, iSCSI and FC targets

Load system settings

All server settings (user, TCP/IP setting etc.) can be recovered from the backup file. You can

select settings that you wish to recover individually NOTE: Even without these settings, new eEVOS installation will automatically import disks,

RAID, shares, iSCSI and FC targets

Hardware information Hardware information will provide you the list of detected hardware and also IPMI information.



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IPMI Status

When clicking on more IPMI info within Hardware Information you can see all IPMI related

info.



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System update

eEVOS can be updated in a 3 different ways.

Online Update

Click on search – eEVOS will automatically look for an update file and perform update

Manual Update

Click on “I already have an update file” and upload the file using wizard

Update via Installation-CD

Download the latest ISO and boot of it – your existing installation will be recognized and

update will be offered.

Time Date / Time

Time Zone Time sync via Network Time Protocol (NTP)

In an Active Directory environment this functionality should not be used because the

server should sync the time with the domain server.



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USERS AND GROUPS

User and Group Management The euroNAS server can check the identity of users by using its internal user / password

list. These settings are only for accessing the web interface and SMB/CIFS cluster resource.

Default setting for new shares: everyone can access the shares. If you wish to limit this -

define at least one user under access management.

The euroNAS server has already some predefined user / group accounts.

admin - Administrator (default password „euronas“) guest - guest account (no password) users - all local users admins - all admin users Group membership can be changed for every user. Select option “Groups” in users list

Guidelines for creating users

Special characters are not allowed in user names

Duplicating Log-in Credentials for eEVOS and Windows or Macintosh Clients

You can simplify user access for Windows or Macintosh clients, by duplicating their log-in

credentials on the eEVOS server. This will help to bypass the log-in procedure when accessing the server.

This is only valid for local users - not domain users

It is important to note that default users and groups cannot be modified or deleted.



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NETWORK

Network Information Here you can see all the information about your network ports. If you click on configure you

can configure its TCP/IP settings.

Domain and Workgroup Additionally, to the local user / group authentication eEVOS can also authenticate users using Windows Active Directory services.

The following methods are supported:

Workgroup (local user / group authentication)

Active Directory Domain

In order to join the domain you must have an administrator account for this domain.

It is important to note that additionally you can also enable a guest account. This

enables users without local or domain account to access the shares. Before they can access any share user „guest“ must be allowed under access settings for this share.



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NETWORK

TCP/IP Settings IP address and subnet mask are necessary for the computer to communicate with other

computers.

If a data packet is to be sent to a computer outside of the local network, than this happens

via the gateway which also possesses a unique IP address.

The following settings can be configured via network card:

Manually (static)

The following settings can be configured manually:

IP address

Subnet mask

Gateway

DHCP

The network settings are getting provided by the DHCP server.

It is important to note that with DHCP the IP address of the server might change at a

restart. This can collide with High Availability services and therefore DHCP should be

only used if the IP is reserved on DHCP server.



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NETWORK

DNS / WINS configuration DNS (Domain Name Service) converts an IP address into a computer name. You have to

enter the IP address of the server under which the service runs. WINS converts specific Microsoft computer names into an IP address. You have to enter the

IP address of the server under which the service runs.

If no settings of DNS via DHCP are transmitted to the server or if the TCP/IP was configured

manually the DNS and/or WINS server can be entered here.

The WINS information cannot be fetched from the DHCP Server. If necessary this

information should always be set manually.

Host Editor

If there should be problems converting the names and/or if it is not possible to reach a

certain computer via its name, the IP address and the name can be entered manually.

The following information can be registered:

IP address of the computer

Host name (long) i.e. computer1.mydomain.local

Host name (short) i.e. computer1 (without domain)



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NETWORK

Bundle network cards This option allows you to bundle several network cards in order to increase bandwidth

and/or redundancy (reliability).

euroNAS supports the following possibilities:

Adaptive load balancing The network bandwidth increases by an equivalent of the factor two since several

network cards are sending data in a load balancing way.

IEEE802.3ad Link aggregation (LACP) *

The network bandwidth increases by the factor two since several network cards are

sending and receiving data in a load balancing way (switch support needed).

Port failover (security)

If one network card disconnects then the other network card takes over

automatically, and connected users continue to have access to the server without

any problems.

Ping Ping is a computer network administration utility used to test the reachability of a host on

an Internet Protocol (IP) network. If a computer can be reached via its IP address only, then

in "Host Editor" you can link the IP address with the name.



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DRIVE MANAGEMENT

Hard disk drive information

The following information can be seen:

Name of the drive

Manufacturer and model Capacity in Megabyte

Membership in Raid

Initialization status

S.M.A.R.T. Status

Temperature

euroNAS software is compatible with all hard disks supporting ATA, S-SATA, SAS and Fibre

Channel.

S.M.A.R.T.

S.M.A.R.T. allows you to access the status information of your hard disk – this also helps to

prevent hard disk failures.



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DRIVE MANAGEMENT

Initialize drives (create share drive)

In order to create a share on a drive, it needs to be initialized.

It is important to note that after initialization any data - already on the drive - will be deleted

irrevocably. With the start of the initialization a name will be assigned to the share drive. Now you can

create shares for this drive in the share management.

The actual status of the share can be also seen in the share management.

1. Select the drive

2. Enter the name of the share disk

3. Now you can create cluster or VM disk on the drive.



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HARDWARE RAID MANAGER

In addition to the software RAID eEVOS also supports many hardware Raid controllers.

Depending on controller model - hardware RAID manager can read the status, create RAID and notify you via E-Mail in case of drive failure.

All supported hardware RAID controllers are recognized automatically, and the RAID

manager adjusts features depending of the controller.

An updated list of all currently supported controllers can be found on our website under

http://www.euronas.com/compatibility-hardware-raid-controller

http://www.euronas.com/compatibility-hardware-raid-controller



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SOFTWARE RAID

RAID connects several hard disks while being addressed like a single disk. The advantages are the speed (RAID 0) and data security since the data is still readable if one hard disk fails

(RAID 1, 5 and 6).

eEVOS supports the hardware RAID controller but also includes powerful integrated

software RAID functionality.

Features (Software RAID)

Monitoring

RAID monitoring service will inform you if one of the drive fails. All RAID related

events are logged.

Flexible on system change

Hard disks can be put into another system - another euroNAS installation will still recognize them and address them correctly even if the disks are not put in

the same order as in original system.

Supported RAID configurations

Software Raid supports the following configurations: RAID 0, RAID 1, RAID 10,

RAID 5, RAID 6.

RAID capacity expansion Software RAID can be expanded with additional drives.

During the capacity expansion RAID array is in “non redundant” condition. It is

highly recommended to backup all data before expanding the RAID array.



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SOFTWARE RAID

Raid creation The Raid array is easy to create:

1. Select the hard disks you wish to use.

2. Enter the name and type of the Raid array. Given name helps you to differentiate

disks and raid arrays in your system.

3. When RAID creation is finished you can use the new RAID disk as a normal disk

and create shares, iSCSI or Fibre Channel targets on the RAID drive.

4. RAID information allows you to see the status of the new RAID. This page

automatically refreshes the RAID state every 30 seconds.



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SOFTWARE RAID

Software RAID supports the following options:

RAID 0 Advantage: speed and capacity

Disadvantage: no data security – if one disk fails all data is lost

Data gets shared between several hard disks. This enhances the data in- and output rate.

But is also increases the risk of losing all data if one disk fails. This option is only

recommended if data is not important and you need maximal performance RAID 1 (Mirroring) Advantage: Data security Disadvantage: 50% capacity loss

Data gets mirrored on two hard disks – both hard disks contain identical data. If one disk

fails, data remains intact on the other disk.

It is possible to define a dedicated hotspare drive. If one hard disk fails in a RAID 1 array,

the spare drive will automatically take over and the RAID array will rebuild automatically. RAID 5 Advantage: Data security, capacity and speed (reading)

Disadvantage: Slower at writing

Data together with parity information is spread over all hard disks. If one hard disk fails the system can continue work normally and will automatically missing

information from failed drive out of the parity information.

The advantage is this security and capacity – at the costs of a lower write speed, since parity

calculation is computing intensive. This RAID still represents the best compromise between

cost, redundancy and access speed.



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RAID 6

Advantage: Most secure option – two hard disks can fail, still safe in rebuild mode, and fast reading

Disadvantage: Capacity of two hard disks gets lost



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SOFTWARE RAID Data gets shared between at least four hard disks, and you obtain a failure security of up to

two hard disks. The system continues working even if up to two hard disks fail. Therefore

the advantage is high failure security and capacity – at the disadvantage of a lower access

rate, since sharing is very computing intense. But an additional advantage compared to Raid 5 is that even in rebuild mode the Raid

compound is redundant and one more hard disk failure could be met.



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HYBRID STORAGE CACHE

Hybrid Storage Cache improves the performance of your storage server by dynamically

moving frequently used data to a faster, smaller device such an SSD or NVMe.

This way you can build a hybrid storage server that will provide you with higher I/O

performance and larger capacity at the same time.

eEVOS analyses automatically incoming data transfer and moves blocks that are used more

often to the faster cache disks. The longer the server is in use the more efficient your server

will become.

Please note that data blocks will be moved so SSD disks should also be kept redundant

(RAID Array).

For setting up hybrid storage please go to “Storage Management” / “Performance Cache”.

From there you can see the list of all drives.



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HYBRID STORAGE CACHE

Select the drive which will be the main drive in the hybrid storage, and then select a drive,

which will be the cache drive by selecting the drive and clicking on “Set cache” button. Note

that the cache drive shouldn't have any shares or ISCSI/FC targets on it. On the picture

below main drive will be “sdc” and cache drive “sdd”.

Now go to “Details” for setting further options.

Under details you can decide how much cache space each individual share or target is

allowed to use. The “Write Back” option allows faster speeds but is risky in case of power

failure. Per default “Write Back” is disabled.

Stats button will show you current cache usage and detailed information.



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APC-UPS

UPS helps the server in case of power failure to shut down the system in a controlled way.

UPS service controls the UPS battery and automatically shuts down the system when it reaches a critical status.

USB UPS configuration

It is important to note that "battery level" and "remaining time" are both valid. The according

status that is reached first decides that the system is shut down. After having configured UPS check the status of the device – if you cannot see the status and/or the website is not

responding, the UPS service could not recognize the device.



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APC-UPS

Configuration of a network based APC UPS

Note: only UPS devices manufactured by APC are supported. APC devices require

passphrase to contain at least 12 characters.



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SERVICES

E-Mail Notification

If you have set “E-Mail notification” than you will automatically receive an email if there

should be any problems whole running the server.

The following parameters need to be set:

SMTP server Sender: an email account which is known to the SMTP server and/or which

gets accepted by the SMTP server

Receiver: Email address of the recipient to whom the email notification is to

be sent

User name (SMTP)

Password (SMTP)

SNMP Server

You can monitor the server using 3rd party SNMP tools

APC UPS

Monitoring service for APC UPS devices (USB / Network).



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EVENT LOGS

Event logs help you troubleshooting in case of problems. Especially when contacting

technical support, it is very important to create and send support file as well. This file helps us determining the problem and finding the solution much faster



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VM CLUSTER CREATION eEVOS enables you to build a cluster of 2 nodes using the advanced technologies that synchronizes the VMs between 2 servers in real time.

Its intelligent services will detect if one of the nodes goes offline and will make sure that the

functioning node takes over the VMs and the virtual network of the failed server without

requiring administrative intervention.

Depending on the reason why node goes offline virtual machines will be either transferred to

other node without downtime (proper shutdown of the node) or restarted on the other node

(node crash).

Without clustering, if the virtualization server is down, the virtual machines and all related applications and services will be unavailable until the server is back online.

This benefit is not only for the failures and crashes that inevitably happen in the computer

world, but also for planned maintenance. A server in the cluster may be taken offline for

maintenance and brought back online without interrupting your users or customers

eEVOS Cluster uses automated tools that helps you configure it in few easy steps.

Configure Cluster

Before cluster is created it is important to configure network settings and to initialize drive /

RAID.

Make sure that all NICs are configured prior creating cluster (later this IPs should not be

changed) - you need at least 2 NICs - one for internal communication (replication network)

and one for communication with network clients (corporate network).

When ready click on "Create New Configuration".

If you already have existing eEVOS single node server, you can connect this one and build

the cluster by clicking “Join existing server”



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VM CLUSTER CREATION Now you can select network cards that you wish to use and provide admin password of the

other server. Here you should also set "Network Test-IP" - this IP is used by cluster to find

out if it can reach the clients (it will ping them regularly and know this way If it can reach the network). Ideally it should be more than one and should be devices that are running

24/7 - for example your router, printer, other servers....



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VM CLUSTER CREATION Both servers will now build and optimize for cluster. This can take several minutes...

After the successful creation you can see the overview and that both servers can see and communicate with each other



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VM CLUSTER DRIVE CREATION

Creating Cluster Drive After cluster creation you can now create a cluster drive - this drive will be mirrored between

both nodes and make sure that your VM images remain in sync between the nodes.

Internally this drive will be running in Active/Active mode – this means that both nodes can access this drive and use it for the VMs simultaneously.

Cluster drive can be reached as via CIFS/SMB protocol by using its assigned IP. Under

“Security” you can define who will be allowed to access the share.



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ISO MANAGEMENT

Using ISO Images

For the installation of the guest OS or later use it is nessesary to connect the ISO image of

the operating system.

There are 2 ways for doing this

ISO Repository You can connect directly on to a SMB/CIFS network share on your network and attach those ISOs directly.

Copy ISO image directly to the cluster drive via SMB/CIFS. Every cluster drive is accessible through its IP address - if you copy the ISO image directly

to the cluster driver you can attach it on to your virtual machine.



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VM CREATION AND MANAGEMENT

VM Creation window contains 4 tabs. The mandatory settings for the VM creation are listed

in “General Tab”. The settings in all other tabs are optional. For settings adjustments you can use mouse or for fine tuning the “arrow keys”

General Tab

VM Name

Name for the new VM

Guest Operating System

Selection of the appropriate guest operating system makes sure that the VM is configured

the most optimal way.

ISO Selection

You can select the installation CD for the installation of the Guest OS. Installation ISO must

be copied on one of the VM drives. VM drives are accessible via SMB/CIFS and NFS shares.



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CPU Selection

Select amount of CPU sockets and cores that you wish to assign to the VM

VM Memory Size

Select amount of max memory that the VM is allowed to use. GUI will also show you the

amount of memory that is currently assigned to all other VMs.

You can also overcommit memory however keep in mind that if all VMs try to use more

memory than available that this could cause VMs to crash.

Cluster Drive

Drive that the VM will be installed on

Storage Type

You can select 2 storage types

RAW – it provides best performance, reserves whole capacity immediately

QED – thin provisioned. Good performance uses spacy dynamically

Resource Size

Size of the VM disk. You can also add additional disks by clicking on “Storage Tab” and selecting the option “Add More Drives”. This can be also done later after VM creation.

Display Tab

VMs can be accessed using the embedded console or via VNC viewer. For the best performance and experience, we recommend using remote access tools that are running

within your VM. Most common is RDP protocol. That is part of all Windows versions and

many Linux distributions. Other alternative is external tool such as TeamViewer or similar.

Password: you can password protect the access to individual VMs

Keyboard mapping : set which keyboard mapping the VNC client will be using



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VNC Port: define which VNC port will be used for this VM.

Storage Tab

In storage tab you can attach ISO or add additional virtual disks to your VM

Networking Tab

Under networking tab, you can define how many virtual networking cards you need and also

to which hypervisor network they will belong. You can define different virtual NICs to belong

to different virtual networks (check chapter VM Networks).



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VM SNAPSHOT MANAGEMENT

eEVOS supports enterprise class snapshots of the virtual machines

It will preserve VM state incl. RAM

VSS API communication ensures highest data integrity

You can create, revert or create new VMs out of the snapshots. They can even run on

a different node from the original

For the Snapshot Management click on the button snapshot next to the virtual machine

Snapshot Management will show you the list of the created snapshots. You can create,

revert or create new VM out of the existing snapshot.



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VM CLONING

With the eEVOS you can create clones of your VMs. They are fully independent VMs.

If you wish to clone the VM click on the button clone next to the VM

Enter the name for the new VM

After the creation the cloned VM will be listed as normal VM

Cloned VM will have a different MAC address from the original. If the IP within the VM is set

to static it will still have the IP of the original VM. In order to avoid IP conflicts please

change the IP of the cloned VM before running it in parallel with the original VM.

It is recommended that the VM that you wish to clone is powered off. It is possible to clone

live VMs as well however the content of RAM will be lost. The state of the clone will in this

case be comparable as if the power plug was pulled of a running system.

Best consistency is ensured by cloning the VM in powered off state.



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VM BACKUP

Secure and reliable backups are essential in order to fulfill the business requirements for

disaster recovery scenarios. A fast and reliable recovery of VMs is also very important in

order to keep the downtimes as small as possible.

eEVOS integrates a powerful backup and restore functionality that enables you to quick and

fast recovery

Most important features

Easy setup and management

Backup target can be any NAS Server

Maximum space savings thanks to deduplication

Support for Microsoft VSS (Volume Shadow Copy Service)

Easy backup job scheduling (hourly or on certain days)

Retention time (decide how long your backup should be kept on backup server)

Independent from your eEVOS installation – restore your VMs on any eEVOS

installation.

Restore whole VMs or individual disks from your VM

Restore to new VM, Clone or Snapshot

Automated Email reporting (daily, weekly, monthly)

Email notifications in case of failed backups



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VM BACKUP How does eEVOS VM-Backup work?

eEVOS VM-Backup analyzes the data blocks of a virtual machine and groups the duplicated

blocks together.

This process is called deduplication.

The duplicate data blocks are backed up only once, so the backups and especially the

subsequent backups are much smaller than using the conventional differential or

incremental backups.

Any NAS server can be used as backup server. Due to the I/O load we recommend better

performing NAS solutions such as euroNAS Premium Ultra R3.



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VM BACKUP Creating a VM-Backup job You can start individual backups or create a schedule for single or multiple VMs.

Select VMs that you wish to backup

Define the schedule (hourly / daily)

Define the network share that you wish to use as target for your backup

Set the maximum number of deduplicates before full backup is performed again

Define retention time – how long you wish to keep your backups before they

automatically get deleted

Select Verify Backup if you wish your backup to be verified when done



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VM BACKUP

Restoring from Backup

The VMs can be recovered quickly and easily. The recovery can be performed on

any eEVOS server.

There are different types of restore depending on your requirements

New VM This option is offered automatically if there is no virtual machine with this name on the

eEVOS Server.

During recovery, it will automatically create new VM on the drive of your choice.

This option should be used when recovering on a new system or migrating VMs.

Snapshot When restoring to a snapshot, the restored VM will be shown in the snapshot management

of the VM. You can then use the option “recover from snapshot” to set this VM online and

replace existing running VM.

Another advantage is that it will restore the memory of your backup as well so you will get

the same state of the running system as it was during the backup.

Replace existing VM The existing VM is restored from the backup and completely replaced

New VM-Clone Instead of replacing the existing VM you can create a new VM from the backup that will

have a new name. In order to avoid conflicts, it will automatically change the MAC address

of the virtual network cards.



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SERVER STATISTICS

Under statistics you can see the server usage

.

You can see the following information:

RAM and SWAP Partition usage

I/O Statistics for your drives partition



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SERVER STATISTICS

Network statistics for each individual port



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VM STATISTICS

eEVOS provides you all necessary information for monitoring and optimizing your virtual

machines

Statistic graphs for individual virtual machines You can access it via “System Info” “Statistics”

It shows Disk, Memory, CPU and Network statistics

Real time I/O statistics for individual virtual machines on both nodes

You can access it from VM overview – button “VM Stats”

user guide for euronas enterprise virtualization...

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