Restrictions

Running Sun Cluster HA for Oracle 3.0 on Sun Cluster 3.1

The Sun Cluster HA for Oracle 3.0 data service can run on Sun Cluster 3.1 only when used with the following versions of the Solaris operating environment:

• Solaris 8, 32-bit version

• Solaris 8, 64-bit version

• Solaris 9, 32-bit version

The Sun Cluster HA for Oracle 3.0 data service cannot run on Sun Cluster 3.1 when used with the 64-bit version of Solaris 9.

Sun Cluster HA for Oracle Parallel Server/Real Application Cluster

Adhere to the documentation of Oracle Parallel Fail Safe/Real Application Clusters Guard option of Oracle Parallel Server/Real Application clusters because you cannot change hostnames after you install Sun Cluster software.

For more information on this restriction on hostnames and node names, see the Oracle Parallel Fail Safe/Real Application Clusters Guard documentation.

Sun Cluster HA for NetBackup

• If the VERITAS NetBackup client is a cluster, only one logical host can be configured as the client because there is only one bp.conf file.

• If the NetBackup client is a cluster and if one of the logical hosts on the cluster is configured as the NetBackup client, NetBackup cannot back up the physical hosts.

• On the cluster running the master server, the master server is the only logical host that can be backed up.

• Backup media cannot be attached to the master server, so one or more media servers are required.

• In a Sun Cluster environment, robotic control is only supported on media servers and not on the NetBackup master server running on Sun Cluster.

Sun Cluster HA for NFS

• No Sun Cluster node may be an NFS client of a Sun Cluster HA for NFS-exported file system being mastered on a node in the same cluster. Such cross-mounting of Sun Cluster HA for NFS is prohibited. Use the cluster file system to share files among cluster nodes.

• Applications running locally on the cluster must not lock files on a file system exported via NFS. Otherwise, local blocking (for example, flock(3UCB) or fcntl(2)) might interfere with the ability to restart the lock manager (lockd). During restart, a blocked local process may be granted a lock which may be intended to be reclaimed by a remote client. This would cause unpredictable behavior.

• Sun Cluster HA for NFS requires that all NFS client mounts be “hard” mounts.

• For Sun Cluster HA for NFS, do not use hostname aliases for network resources. NFS clients mounting cluster file systems using hostname aliases might experience statd lock recovery problems.

• Sun Cluster 3.1 software does not support Secure NFS or the use of Kerberos with NFS, in particular, the secure and kerberos options to the share_nfs(1M) subsystem. However, Sun Cluster 3.1 software does support the use of secure ports for NFS by adding the entry set nfssrv:nfs_portmon=1 to the /etc/system file on cluster nodes.

Sun Cluster HA for SAP liveCache

Do not use NIS for naming services in a cluster running Sun Cluster HA for SAP liveCache because the NIS entry is only used if files are not available.

For more procedural information about the nssswitch.conf password requirements related to this restriction, see“Preparing the Nodes and Disks” in Sun Cluster 3.1 Data Service for SAP liveCache Guide .