If NFS administration tasks are per formed on a computer that belongs to a domain that is not
trusted by the domain of the cluster, the changes are not properly replicated am ong the nodes in
the cluster.
• In a clustered deployment, if PCNFS password and group files are being used to provide user and
group information, these files must be located on each node of the system.
Example: If the password and group files are located at c:\maps on node 1, then they must also
be at c:\maps on node 2. The contents of the password and group files must b e the same on
both nodes as well.
These password and group files on each server node must be updated periodically to maintain
consistency and prevent users or groups from being inadvertently squashed.
Non cluster
aware file sharing p rotocols
Services fo
r Macintosh (SFM), File and Print Ser vices for NetWare, HTTP file sharing protocols are not
cluster awa
re and will experience service interruption if installed on a clustered resource during failover
events of t
he resource. Service interruptions will be similar to those experienced during a server outage.
Data that h
as not been saved to disk prior to the outage will experience data loss. In the case of SFM,
it is not s
upported because SFM maintains state information i n memor y. Specifically, the Macintosh
volume index is located in paged pool memor y. Using SFM in clustered mode is not supported and
may result in data loss similar in nature to a downed ser ver should the resource it is based on fails
over to the opposing node.
Adding new storage to a cluster
Present the new storage to one node in the cluster. This can be a ccom p lished through selective storage
presentation or through SAN switch zoning.
The tasks described below a re used to add storage to a cluster. Refer to the online help for clustering
for additional details.
Creating physical disk resources
Aphysi
cal disk resource must reside within a cluster group. An existing cluster group can be used or a
new cl
uster group must be created. For information on creating disk resources, see the cluster online
help topic Physical Disk resource t ype.
NOTE:
• Physi
cal disk resources usually do not have any dependencies set.
• Inmulti-nodeclustersitisnecessarytospecifythenodetomovethegroupto.Whenaclustergroup
is moved to another node, all resources in that group are moved.
• When
a physical di s k resource is owned by a node, the disk appea rs as a n unknown, unreadable
disk to all other cluster nodes. This is a normal condition. When the phy si cal disk resource moves to
another node, the disk resource then becomes readable.
Creating file share resources
To create a file share resource, refer to t wo clustering online help topics:
• Create a cluster-managed file share
• Using a server cluster with large numbers of file shares
HPProLiantDL380G5StorageServer 135
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