Understanding And Using Planned Failover - Intel RAID High Availability Storage User Manual

 I/O transactions that rely on the exclusive A-DG0:VD1 on Server A fail because exclusive volumes
do not move with a failover.
NOTE: When Server A returns, the management and I/O paths of the pre-failover configurations are
automatically restored.
The following sections provide more detailed information about planned failover and unplanned failover.

Understanding and Using Planned Failover

A planned failover occurs when you deliberately transfer control of the drive groups from one controller
node to the other. The usual reason for initiating a planned failover is to perform some kind of
maintenance or upgrade on one of the controller nodes—for example, upgrading the controller firmware,
as described in the following section. A planned failover can occur when there is active data access to the
shared drive groups.
Before you start a planned failover on the Intel
processes are scheduled to run during that time. Be aware that system performance might be impacted
during the planned failover.
NOTE: Failed-over VDs with exclusive host access cannot be accessed unless the VD host access is set to
shared. Do not transition operating system boot volumes from EXCLUSIVE to SHARED.
Planned Failover in Windows Server 2012
Follow these steps to perform a planned failover on a Intel
running Windows Server 2012.
1. Create a backup of the data on the Intel
2. In the Failover Cluster Manager snap-in, if the cluster that you want to manage is not displayed, in the
console tree, right-click Failover Cluster Manager, click Manage a Cluster, and then select or specify
the cluster that you want.
3. If the console tree is collapsed, expand the tree under the cluster that you want to configure.
4. Expand Services and Applications, and then click the name the virtual machine.
5. On the right-hand side of the screen, under Actions, click Move this service or application to
another node, and click the name of the other node.
As the virtual machine is moved, the status is displayed in the results panel (center panel). You can verify
that the move succeeded by inspecting the details of each node in the RAID management utility.
Planned Failover in Windows Server 2008 R2
Follow these steps to perform a planned failover on a Intel
running Windows Server 2008 R2.
1. Create a backup of the data on the Intel
2. Open the Failover Cluster Manager, as shown in the following figure.
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Intel High Availability Storage User Guide
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