Consider the following points when you plan the use of the Oracle Solaris OS in an Oracle Solaris Cluster configuration:
Oracle Solaris Operating System – Oracle Solaris Cluster 4.2 core software and Oracle Solaris Cluster 4.2 Quorum Server software require a minimum of Oracle Solaris 11.1 software. The Oracle Solaris 11.0 release is not supported for Oracle Solaris Cluster 4.2 software.
Oracle Solaris Zones – Install Oracle Solaris Cluster framework software only in the global zone.
Loopback file system (LOFS) – During cluster creation, LOFS capability is enabled by default. If the cluster meets both of the following conditions, you must disable LOFS to avoid switchover problems or other failures:
If the cluster meets only one of these conditions, you can safely enable LOFS.
If you require both LOFS and the automountd daemon to be enabled, exclude from the automounter map all files that are part of the highly available local file system that is exported by HA for NFS.
Power-saving shutdown – Automatic power-saving shutdown is not supported in Oracle Solaris Cluster configurations and should not be enabled. See the poweradm (1M) man page for more information.
Network Auto-Magic (NWAM) – The Oracle Solaris Network Auto-Magic (NWAM) feature activates a single network interface and disables all others. For this reason, NWAM cannot coexist with the Oracle Solaris Cluster software and you must disable it before you configure or run your cluster.
IP Filter feature – Oracle Solaris Cluster relies on IP network multipathing (IPMP) for public network monitoring. Any IP Filter configuration must be made in accordance with IPMP configuration guidelines and restrictions concerning IP Filter.
fssnap – Oracle Solaris Cluster software does not support the fssnap command, which is a feature of UFS. However, you can use the fssnap command on local systems that are not controlled by Oracle Solaris Cluster software. The following restrictions apply to fssnap support:
The fssnap command is supported on local files systems that are not managed by Oracle Solaris Cluster software.
The fssnap command is not supported on cluster file systems.
The fssnap command is not supported on local file systems under the control of HAStoragePlus.