Configuring InfoScale Storage in an existing Microsoft Failover Cluster


Configuring InfoScale Storage in an existing Microsoft Failover Cluster
Prev	Appendix A. Configure InfoScale Storage in an existing Microsoft Failover Cluster

After you have configured an application for high availability, in a Microsoft Failover Cluster, you may want to move the application data from the existing disks to the InfoScale Storage -controlled storage disks. This task involves installing InfoScale Storage on all the cluster systems, converting the already configured basic disks to dynamic disks, and then adding the dynamic disk group resource to the application role.

Notes:

You are required to reboot the systems to successfully install InfoScale Storage. Also, you need take the application role offline before you begin to convert the basic disks to dynamic disks. These procedures result in application down-time.
For the steps performed using the Failover Cluster Manager, refer to the Microsoft documentation for details. For the steps performed using VEA, refer to the SFW administrator's guide for the details about Disk and Volume tasks.

To configure InfoScale Storage in an existing Microsoft Failover Cluster, perform the following steps:

Install InfoScale Storage on all the cluster systems. You must select the Microsoft Failover Cluster option during the installation.

Note:

At the end of the installation process you are required to reboot the system. To ensure less down-time, you can first install InfoScale Storage on the cluster systems other than the one where the application role is online. After you complete the installation on all these systems initiate the installation on the system where the application role is online.

After the cluster systems have restarted, using the Failover Cluster Manager, stop the application role to bring the resources offline.
Check the resource dependencies to note the storage resource dependencies.
Remove the existing basic disk storage resource from the application role.
Remove the basic disk from the available storage.
This step removes the basic disk resource from the application role and takes the disk offline.
Using VEA, bring the basic disk online.
Create a new clustered dynamic disk group using the basic disk that is brought online in step 6. Before you create a dynamic disk group, ensure that minimum 16MB free space is available in the disk. This space is required to upgrade a basic disk to a dynamic disk.
Using Failover Cluster Manager, move the clustered disk group resource that is created in step 7. You must move this resource from the Available Storage to the Application Role.
Set the resource dependencies as noted in step 3.
All the earlier storage resource dependencies must now be replaced with the Volume Manager Disk Group resource.
Bring the application role online.

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