Veritas Storage Foundation 5.1 SP1 Cluster File System Administrator"s Guide (5900-1738, April 2011)

For CVM, a single cluster node is the master for all shared disk groups and shared
volumes in the cluster.
See “About Veritas Volume Manager cluster functionality” on page 46.
Determining or moving primaryship
The first node of a cluster file system to mount is called the primary node. Other
nodes are called secondary nodes. If a primary node fails, an internal election
process determines which of the secondaries becomes the primary file system.
To determine primaryship
■ To determine primaryship, type the following command:
# fsclustadm -v showprimary mount_point
To give primaryship to a node
■ To give primaryship to a node, type the following command on the node:
# fsclustadm -v setprimary mount_point
Synchronize time on Cluster File Systems
SFCFS requires that the system clocks on all nodes are synchronized using some
external component such as the Network Time Protocol (NTP) daemon. If the
nodes are not in sync, timestamps for inode (ctime) and data modification (mtime)
may not be consistent with the sequence in which operations actually happened.
File system tunables
Using the tunefstab file updates the tunable parameters at the time of mount.
The file system tunefstab parameters are set to be identical on all nodes by
propagating the parameters to each cluster node. When the file system is mounted
on the node, the tunefstab parameters of the primary node are used. Symantec
recommends that this file be identical on each node.
Setting the number of parallel fsck threads
This section describes how to set the number of parallel fsck threads.
Storage Foundation Cluster File System architecture
Determining or moving primaryship
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