IBM G27, User Reference

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Event ID: 1147
Source: ClusSvc
Description: The Microsoft Clustering Service encountered a fatal error.
The Quorum drive data must be available so that the cluster service can confirm
that the cluster configuration on the local node is up to date. If it cannot read the
log, the cluster service does not start to prevent the loading of old configuration
data.
To restore the Quorum disk, a Microsoft Windows Backup utility backup of the
system state of the boot drive (C:) of one node must be available. Backing up the
entire boot drive also saves the system state. Backing up the system state
automatically saves the Quorum log and other cluster files.
A Microsoft tool is needed as part of the Quorum restore procedure. This tool is
called Clusrest.exe and can be downloaded from the Microsoft Web site at the
following URL:
http://download.microsoft.com/download/win2000platform/clusrest/1.0/NT5/EN-
US/clusrest.exe
The Quorum restore procedure involves restoring the system state and cluster state
to the node followed by execution of the Clusrest.exe tool. Upon completion of the
restore, the node should rejoin the cluster and return to normal operation.
1. Restore the entire boot drive of the node if needed. Otherwise, restore the
system state to the node.
2. Ensure that the cluster service is stopped on the other node.
3. Restore the Quorum/cluster information to that node by selecting to restore at
least the system state. This creates a temporary folder under the Winnt\Cluster
folder called Cluster_backup.
4. Run the Clusrest.exe tool to rebuild the Quorum drive. The tool moves the
cluster information from the node’s boot drive to the Quorum drive.
5. After you complete the process and the cluster service has started successfully
on the newly restored node, restart the cluster service on the other node.
Note: If you do not follow this process, and another node with a more current
database takes ownership of the Quorum before you update the database
from the restored node, the restore does not work.
Before you add software
You have now completed networking and clustering setup and administration, and
the NAS Gateway 300 is at a point where you can install software on it. But before
you do, it is recommended that you take advantage of the Persistent Storage
Manager (PSM) disaster recovery function, detailed in “Disaster Recovery” on
page 66.
The PSM disaster recovery function enables you to restore the system drive from a
single image, without having to go through the entire recovery procedure and then
additionally having to restore a system drive backup. So, if any software you install
creates unresolvable problems for your system, you can regain the stable system
you had before you installed the software.
Chapter 5. Completing networking, clustering, and storage access setup
53