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the loss of time or work efficiency because the shared data and applications earlier
managed by the failed server are still online to the clients.
When the failed server is operational again, it can be placed back into the cluster;
the resources are reallocated between the two servers and the cluster resumes
normal operation.
You will need clustering hardware and software to configure a cluster. You can
install IBM ServeRAID Cluster Solution by using one of the following software
applications:
v Microsoft Cluster Server, which is part of Windows NT Server Enterprise
Edition.
v Microsoft Cluster Server using Windows 2000, which is part of Windows 2000
Advanced Server Edition.
Important:
Be sure to review Installing the IBM ServeRAID Cluster Solution.
Using Active PCI features
Note: This action is not supported when using the following:
v Integrated RAID controller
v ServeRAID-5i controller
v ServeRAID-6i/6i+ controller
v ServeRAID-6M controller under Windows operating systems
Some
IBM servers support Active PCI (also called hot-plug PCI) features. You can
use these features to install or remove PCI controllers without turning off the
server. The following table summarizes which operating systems support these
features.
Feature
Windows NT
4.0
Windows
2000
Windows
Server 2003 NetWare 4.x NetWare 5.x
Hot add Yes Yes Yes No Yes
Hot remove No Yes Yes Yes Yes
Hot replace Yes No No No No
You can use the hot-add feature to add a controller to a running server, thus
expanding its capacity.
Note: If you are not using the hot-add feature, restore the controller to the
factory-default settings before configuring arrays and logical drives.
Use the hot-remove feature to remove a controller from a running server. If a
controller fails, use the hot-replace feature to replace a controller with an identical
controller.
Attention: Do not attempt a hot-replace operation on Windows 2000, Windows
Server 2003, or NetWare by hot-removing a failed controller and then hot-adding a
new controller. Loss of data can occur. If a controller fails on these operating
systems, you must shut down the server to replace the controller.
More information
v Using Windows NT 4.0 with Active PCI features
v Rebuilding a defunct drive
28 ServeRAID Manager Installation and User's Guide