ExpressCluster X 2.0 for Windows Reference Guide - Nec

Chapter 11 The system maintenance information
How to replace a server with a new one
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When you replace a server in a cluster environment, follow the instructions below:
1. Set up a new server in the same way as the failed server.
• When using a shared disk, do not connect the new server to the shared disk yet.
• Set the same computer name and IP address as the failed server.
• Register the ExpressCluster license and apply updates as they have been registered and
applied before.
• If there were cluster partition and/or data partition of a mirror disk or hybrid disk on the
local disk of the failing server, allocate these partitions and assign drive letters for them
as they were configured in the failing server. When you use the disk of the failing
server, configure drive letters for the partitions, though allocating partitions is not
necessary.
• When using a shared disk, set the SCSI controller or the HBA that is connected to the
shared disk to be filtered in Filter Settings of Shared Disk upon installing the
ExpressCluster Server.
• After the setup, shut it down and power it off.
Important:
In Filter Settings of Shared Disk, set the SCSI controller or the HBA that is connected to
the shared disk to be filtered. If the new server is connected to the shared disk when it has
not been set to be filtered, data on the shared disk may be corrupted.
2. If the failed server is still running, shut it down and remove it from the shared disk and the
LAN, and make sure other servers in the cluster are working properly. (Ignore errors caused
by the failed server being stopped.)
3. Start the new server while it is connected to the LAN. When using a shared disk, start the
server while it is also connected to the shared disk.
4. When using the shared disk, on the new server, use Disk Management (On the Start menu,
point to Settings, and click Control Panel. Double-click Administrative Tools and then
Computer Management, and click Disk Management.) to confirm that the shared disk is
visible, and set the same drive letter as the failed server.
• At this point, access to the shared disk is controlled, so the disk data cannot be referred.
5. Connect to a server in normal operation in the cluster by using the Web browser to start the
Builder. When using a shared disk, click Properties, HBA tab and Connect on the new
server to check or modify the information on HBA and partitions.
Important:
On the HBA tab of Properties of the new server, set the SCSI controller or the HBA that is
connected to the shared disk to be filtered. If the shared disk is connected when it has not
been set to be filtered, data on the shared disk may be corrupted.
6. When there is any mirror disk resource or hybrid disk resource in the resources used in the
new server, stop the failover group containing these resources from the WebManager.
7. Run “clpcl --suspend --force” from the command prompt on the server in normal operation
in the cluster and suspend the cluster.
• A server is recognized to have stopped, so the cluster cannot be suspended from the
WebManager.
ExpressCluster X 2.0 for Windows Reference Guide