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

You can also use storage attributes to specify the storage to be removed. For
example, to remove a mirror on disk mydg01 from volume vol01, enter the
following.
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 mirror vol01 \!mydg01
See “Creating a volume on specific disks” on page 283.
Alternatively, use the following command to dissociate and remove a mirror from
a volume:
# vxplex [-g diskgroup] -o rm dis mirror
For example, to dissociate and remove a mirror named vol01-02 from the disk
group mydg, use the following command:
# vxplex -g mydg -o rm dis vol01-02
This command removes the mirror vol01-02 and all associated subdisks. This is
equivalent to entering the following commands separately:
# vxplex -g mydg dis vol01-02
# vxedit -g mydg -r rm vol01-02
Adding logs and maps to volumes
Veritas Volume Manager supports the following types of volume logs and maps:
■ FastResync Maps improve performance and reduce I/O during mirror
resynchronization. These maps can be either in memory (Non-Persistent) or
on disk (Persistent) as part of a DCO volume.
See “FastResync” on page 65.
See “Enabling FastResync on a volume” on page 338.
Two types of DCO volumes are supported:
■ Version 0 DCO volumes only support Persistent FastResync for the
traditional third-mirror break-off type of volume snapshot.
See “Version 0 DCO volume layout” on page 68.
See “Adding a version 0 DCO and DCO volume” on page 405.
317Administering volumes
Adding logs and maps to volumes