Preparing For Cluster Installation; Before Beginning Installation; Using Multipath Data Paths For High Availability; Enabling Cluster Aware Microsoft Services For Nfs (Optional) - HP ML110 - ProLiant G5 2TB Storage Server NAS User Manual

NOTE:
AppleTalk is not supported on clustered disk resources. AppleTalk requires local memory for volume
indexing. On failover events, the memory map is lost and data corruption can occur.

Preparing for cluster installation

This section provides the steps necessary to cluster HP ProLiant Storage Servers.

Before beginning installation

Confirm that the following specifications have been met before proceeding:
The procedures in the HP ProLiant Storage Server SAN Connection and Management white paper
•
(located on the HP web site at
c00663737/c00663737.pdf) must be completed and all the necessary software components for
connecting to the desired storage must be installed before the configuration of cluster services.
• The Quorum disk has been created from shared storage and is at least 50 MB. (500 MB is
recommended.) Additional LUNs may also be presented for use as shared disk resources.
• Cluster configurations should be deployed with dual data paths for high availability. Dual data
paths from each node enable a path failure to occur that does not force the failover of the node.
Clusters can be configured with single path, but if a failure in the path does occur, all of the node
resources will be failed to the non-affected node.

Using multipath data paths for high availability

HP recommends that cluster configurations be deployed with dual data paths for high availability.
Clusters can be configured with single path, but if a failure in the path occurs, all of the node resources
will be failed to the non-affected node. Pathing software is required in configurations where multipathing
to the storage is desired or required. Multipathing software allows for datapath failure to occur without
forcing a node failover. See the HP ProLiant Storage Server SAN Connection and Management white
paper (located on the HP web site at
SupportManual/c00663737/c00663737.pdf) for additional information on multipath software.

Enabling cluster aware Microsoft Services for NFS (optional)

The server comes with Microsoft Services for Network File System (NFS) preinstalled. Microsoft has
identified an issue that requires that NFS be uninstalled prior to installing clustering on the storage
server. This only applies if you want NFS share resources on the storage server within the clustering
environment. After clustering is installed, then NFS can be installed if you desire this feature.
NOTE:
Failure to uninstall Microsoft NFS prior to the installation of clustering results in no NFS resource types
being available in the clustering environment.
To uninstall Microsoft NFS:
1. From the storage server desktop, select Start > Settings > Control Panel > Add or Remove Programs.
The Add or Remove Programs window is displayed.
132 Cluster administration
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