starwind iscsi san software: providing shared storage for hyper

StarWind SoftwareTechnical Reference Series

Copyright © StarWind Software 2008-2010. All rights reserved.

StarWind iSCSI SAN Software: Providing sharedstorage for Hyper-V's Live Migration feature

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3Copyright © StarWind Software 2008-2010. All rights reserved.

Guide

Introduction

Note: Data Synchronization Channel redundancy is required; use NIC teaming(link aggregation).



Configuring StarWind Server

Preparing Storage

2 virtual disks are required for the configuration. Both of them have to be HAdevices. We will describe only the first disk creation process since theprocedure for creating the second one is just the same except the seconddevice will be used for storing virtual machines so it needs to be of a sufficientsize (e.g.100 Gb).Launch the StarWind Console: Start -> All Programs -> StarWind Software ->StarWind. Whenever the StarWind Console is running, its icon will appear inthe system tray. The StarWind Console may be accessed by double-clicking theicon using the left mouse button, or with a single click using the right mousebutton and selecting Start Management from the pop-up menu.From theConnections tree, select the computer you want to provision the iSCSI targetdevice on and Double-click it to connect.You will be prompted to enter the login and password. The default login and password are “root” and “starwind.” You can alwayschange them later.

Click the OK button to continue.Now when You are connected to the StarWind Service on the machine you can

create targets on it. Click button to continue.



In the wizard that appears, specify a target name. The name must be a uniquename by which the device will be declared to the iSCSI initiators connecting toStarWind over an IP network.

Click the Next button to continue.



Select the HA device type by going Hard Disk->Advanced Virtual->HighAvailability device.Specify the partner server parameters. Enter the server's IP address or host,and specify the user name and password for the StarWind Service.




Enter target alias and name to be assigned to the partner target.




Specify the location and name of your local virtual disks and your partner'svirtual disks by clicking the "..." button. If you want to create new virtual disks,tick the Create New checkbox.




Configure the data synchronization channel parameters by specifying thenetwork interface for synchronization. You can also decide node priority bydesignating it as Primary or Secondary.




Specify the method to initialize your HA device.




Check that the device parameters are correct. Click the Back button should anychanges be required.




A summary is displayed on the last wizard page.

Click the Finish button to close the wizard.



Configuring Windows Server 2008

The procedures described in this chapter have to be performed on bothservers.



Install MPIO Feature

Open Server Manager (Start->Administrative Tools->Sever Manager). Go toFeatures item. Click Add Features. An Add Features Wizard will appear. In the features list select Multipath I/Ofeature and install it.

The server might need to reboot after installation is complete.



Install Hyper-V Role

Open Server Manager (Start->Administrative Tools->Sever Manager). Go toRoles item. Click Add Roles. An Add Roles Wizard will appear. In the features list select Hyper-V role andinstall it.

Server will need to reboot after the installation completes.



Connect Targets

Open the Microsoft iSCSI Initiator by going Start -> Administrative Tools ->iSCSI Initiator. Go to the Discovery tab. Add each of the StarWind servers bypressing the Discover Portal ... button and specifying servers IP address.



Switch to the Targets tab.

Connect the targets by clicking the Connect button.



In the dialog window which appears tick the Add this connection to the list ofFavorite Targets. checkbox

Click OK button.Do the same for the remaining 3 targets.



Enable Multipath Support

Now open the MPIO manager (Start->Administrative Tools->MPIO). Go toDiscover Multi-Paths tab. tick the Add support for iSCSI devices checkbox.

Click the Add button.You will be prompted to reboot the server. Click the Yes button to proceed.After reboot initialize the disks and create partitions on them as you will dousing real hard drives. (the procedures on the first server will be automaticallyshown on the second one)



Creating Cluster

Open the Server Manager, go Features -> Failover Cluster Manager.Click on the Validate a Configuration... link to ensure that your servers meetthe requirements to build a cluster. After you have validated yourconfiguration you will be returned to Failover Cluster Manager window. NowClick the Create a Cluster... link and follow the wizard instructions.



Enabling Cluster Shared Volumes

After cluster creation process is complete you will be redirected to to clusterSummary page.

Click the Enable Cluster Shared Volumes... link. Read the notice, tick "I haveread the above notice" checkbox and click OK.



Now go to the Cluster Shared Volumes section.

Click the Add Storage link on the Actions panel.



In the window appeared select the HA Disk.

Click OK.



Now go to the Roles -> Hyper-V -> Hyper-V Manager and click Connect toServer... link from the Actions panel. In the dialog window appeared select thelocal computer and click OK.Now select New -> Virtual Machine. New Virtual Machine Wizard window willappear. On the Specify Name and Location step tick the Store the VM in a differentlocation checkboxand specify location of the cluster shared volume you have specified before.

follow the wizard instructions to complete the VM creation.



Making the VM Highly Available

Go to Services and applications in your cluster management section.

Click Configure a Service or Application... link from the Actions panel.



In the High Availability Wizard select the Virtual Machine menu item from thelist.

Click Next. Follow the instructions to complete the configuration.

After configuring HA for the Virtual machine power it on. Note that the Livemigrate and Quick migrate features are now available and you have a fullyfunctional highly available virtual machine without using a dedicated sharedstorage.



Conclusion


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