Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Converting disk groups back to volume groups
The vxautorollback utility converts one or more VxVM disk groups back to the
LVM volume groups from which they had previously been converted.
Note: The VxVM configuration daemon (vxconfigd) must be running in order for
the analysis to succeed. Reverse conversion is performed on each disk group in
turn. Parallel conversion is not supported. If the configuration or layout of the
volumes in the converted disk group has been changed since conversion from
LVM to VxVM, reverse conversion is not possible. The records of the converted
volume groups are stored in the directory /etc/vx/reconfig.d/vgrecords.
Reverse conversion is not possible if these records are removed or modified.
To convert disk groups back to volume groups
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Run the vxautorollback command:
# /usr/sbin/vxautorollback [dgname ...]
The disk groups may be specified by their names or full pathnames. If no disk
groups are specified, conversion is attempted for all disk groups on the system
that have volume group records stored in the directory
/etc/vx/reconfig.d/vgrecords.
See the vxautorollback(1M) manual page.
Command differences
About LVM and VxVM command differences
This chapter describes the differences between LVM and VxVM commands, and
tasks. It includes a task comparison chart which lists some of the tasks performed
using LVM with a near equivalent task performed using VxVM. It also provides a
list of VxVM tasks which are not available with LVM, and the LVM features
currently not supported in VxVM.
Additional information is available on LVM and VxVM commands.
See HP-UX Managing Systems and Workgroups.
See theLVM manual pages in HP-UX Reference Volumes 2, 3, and 5.
See the Veritas Volume Manager documentation.
Offline data migration
Command differences
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