Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

To remove a traditional DRL log
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Type the following command:
# vxassist [-g diskgroup] remove log volume logtype=drl [nlog=n]
By default, the vxassist command removes one log. Use the optional attribute
nlog=n to specify the number of logs that are to remain after the operation
completes.
You can use storage attributes to specify the storage from which a log will be
removed. For example, to remove a log on disk mydg10 from volume vol01,
enter the following command.
Note: The ! character is a special character in some shells. The following
example shows how to escape it in a bash shell.
# vxassist -g mydg remove log vol01 \!mydg10 logtype=drl
Adding a RAID-5 log
You can only have one RAID-5 plex per RAID-5 volume. Additional plexes become
RAID-5 log plexes, which log information about data and parity being written to
the volume. When you create a RAID-5 volume using the vxassist command, a
log plex is created for that volume by default.
To add a RAID-5 log to an existing volume, use the following command:
# vxassist [-b] [-g diskgroup] addlog volume [loglen=length]
If you specify the -b option, adding the new log is a background task.
When you add the first log to a volume, you can specify the log length. Any logs
that you add subsequently are configured with the same length as the existing
log.
For example, to create a log for the RAID-5 volume volraid, in the disk group
mydg, use the following command:
# vxassist -g mydg addlog volraid
Administering volumes
Adding a RAID-5 log
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