vxvmconvert(1M) VxVM 3.5 vxvmconvert(1M)
1 Jun 2002
NAME [Toc] [Back]
vxvmconvert - convert LVM volume groups to VxVM disk groups
SYNOPSIS [Toc] [Back]
vxvmconvert
DESCRIPTION [Toc] [Back]
vxvmconvert is a menu-driven program to convert an HP Logical Volume
Manger (LVM) configuration to a VERITAS Volume Manager configuration.
This man page is a brief overview of vxvmconvert. Refer to the
VERITAS Volume Manager Migration Guide for a detailed description
before using the conversion procedure.
The vxvmconvert script is interactive and prompts you for responses,
supplying defaults where appropriate. There is a Help facility at
every prompt. Enter a question mark (?) at a prompt to display a
context-sensitive help message.
With vxvmconvert you can identify LVM volume groups, list disks,
analyze volume groups for conversion and complete the conversion of
LVM volume groups to VxVM disk groups.
LVM configurations are converted at the volume group level. All disks
used in a volume group are converted together. You cannot use
vxvmconvert to convert unused LVM disks (those not part of an LVM
volume group) to VxVM disks. To convert unused LVM disks, use pvremove
to take the disk out of LVM control, then initialize the disk for VxVM
use by using vxdiskadm (see pvremove(1M) and vxdiskadm(1M) for more
information).
vxvmconvert changes disks within LVM volume groups to VxVM disks by
replacing the areas of the disks used for LVM configuration
information and with the equivalent VxVM volume configuration
information. Portions of the disks used for user data, such as file
systems and databases, are not affected by the conversion.
The conversion process changes the names by which your system refers
to the logical storage, so must be done offline. No applications can
access data in the volume groups undergoing conversion. You must
unmount file systems using those volumes and shut down any
applications, such as databases, that might use the volumes directly.
OPERATIONS [Toc] [Back]
Analyze LVM Volume Groups for Conversion
Use this operation to analyze one or more LVM volume groups
for conversion to use by VxVM. The analysis checks for
problems that can prevent the conversion from completing
successfully. It calculates the space required to add
volume group disks to a Volume Manager disk group. More
than one volume group may be entered at the prompt. A
grep-like pattern may be used to select multiple volume
- 1 - Formatted: January 24, 2005
vxvmconvert(1M) VxVM 3.5 vxvmconvert(1M)
1 Jun 2002
groups.
See the ``Limitations in Conversion'' section in the Volume
Manager Migration Guide for more information.
Convert LVM Volume Groups to VxVM [Toc] [Back]
Converts one or more LVM volume groups to one or more VxVM
disk groups. This adds the disks to a VxVM disk group and
replaces existing LVM volumes with VxVM volumes.
vxvmconvert prompts you to name the VxVM disk group that
replaces the LVM volume group being converted. A default is
suggested at the prompt. For example, if you are converting
a volume group vg08, vxvmconvert renames it as dg08.
See to the sections ``Dealing with New Logical Volume
Names'' and ``Tailoring your VxVM Configuration'' in the
Volume Manager Migration Guide for more information.
Rollback from VxVM to LVM [Toc] [Back]
Rollback reverts VxVM disk groups to LVM volume groups.
vxvmconvert provides a limited snapshot capability for the
LVM metadata in a converted volume group. A snapshot is a
simple protection method to use during conversion.
Caution! Do not use this operation if the VxVM disk group
was modified since the conversion.
See to the section ``Restoring LVM Volume Groups and
Disaster Recovery'' in the Volume Manager Migration Guide
for more information.
List Disk Information [Toc] [Back]
Displays information about the disks on a system. You can
obtain detailed information about a disk by entering a
specific disk device address.
List LVM Volume Group Information [Toc] [Back]
Listvg displays a list of LVM volume groups. You can obtain
detailed information about an LVM volume group at a specific
disk device address.
SEE ALSO [Toc] [Back]
pvremove(1M), vgcfgbackup(1M), vgrestore(1M), vxdisk(1M),
vxdiskadd(1M), vxdiskadm(1M), vxintro(1M)
VERITAS Volume Manager Migration Guide
- 2 - Formatted: January 24, 2005 [ Back ] |
