Veritas Storage Foundation 5.1 SP1 Cluster File System Release Notes (5900-1509, April 2011)

■ The CVM protocol version must be at least 100.

■ CVM does not support executing all commands on the slave node. You must

issue the following commands only on the master node:

■ Commands that specify a controller name. For example:

# vxassist -g shareddg make sharedvol 20M ctlr:fscsi0

■ Commands that specify both a shared disk group and a private disk group.

For example:

# vxdg destroy privatedg shareddg

■ Commands that include the defaults file as an argument. For example:

# vxassist -d defaults_file

■ Veritas Volume Replicator (VVR) commands including vxibc, vxrlink,

vxrsync, vxrvg, vrport, vrstat, and vradmin.

■ The vxdisk command.

Changing the CVM master online

Cluster Volume Manager (CVM) now supports changing the CVM master from

one node in the cluster to another node, while the cluster is online. CVM migrates

the master node, and reconfigures the cluster.

Symantec recommends that you switch the master when the cluster is not handling

VxVM configuration changes or cluster reconfiguration operations. In most cases,

CVM aborts the operation to change the master, if CVM detects that any

configuration changes are occurring in the VxVM or the cluster. After the master

change operation starts reconfiguring the cluster, other commands that require

configuration changes will fail.

To change the master online, the cluster must be cluster protocol version 100 or

greater.

Changes related to Veritas Volume Replicator

Veritas Volume Replicator includes the following changes in 5.1 SP1:

Default network protocol is now TCP/IP

The default network protocol has changed from UDP/IP to TCP/IP.

Storage Foundation Cluster File System Release Notes

Changes introduced in 5.1 SP1