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vollvmencap, vol-lvm-reconfig - Encapsulate LVM volume groups
/usr/sbin/vollvmencap [-g diskgroup] [-pvolprefix] { lvmvgname }
/usr/sbin/vollvmencap -k [lvmvgname|-a]
/sbin/vol-lvm-reconfig
Place the encapsulated LVM volume group into the disk group
specified by disk group name. The disk group specified should be an existing
disk group.
This option tells the command to use the
volprefix
specified as the prefix for LSM volume names. This is useful if
the LSM volume names chosen by
vollvmencap
already exists.
Also, LSM volume names are limited to 14 characters and this option can be
used to create smaller LSM volume names.
This option tells the command to remove any previous encapsulation
command for the given LVM volume group name. If the
-a
option
was given, encapsulation commands for all LVM Volume Groups that have been
generated up until now are removed.
Digital is retiring the Logical Volume Manager (LVM) in the Version 4.0 release of Digital UNIX. For information about the replacement disk storage management product, called the Logical Storage Manager (LSM), please refer to the Logical Storage Manager guide.
The encapsulation process adds LVM physical volumes and LVM logical volumes in a LVM volume group specified by lvmvgname to a LSM disk group. Each LVM volume is mapped to a LSM volume in the target disk group. vollvmencap generates the necessary LSM commands to convert all LVM volumes to LSM volumes. In the case of LVM volumes that contain file systems, the entries in /etc/fstab are modified to use the new LSM volume special device files.
You execute the command scripts created by vollvmencap by running the vol-lvm-reconfig script. This script needs to be run manually after all LVM volume groups have been encapsulated using vollvmencap. Before executing /sbin/vol-lvm-reconfig, the LVM volume group must be disabled (that is, file systems unmounted). Refer to the vgchange(8) reference page for information on disabling a volume group.
The vollvmencap utility creates an "undo" script for each LVM volume group, and stores the script in /etc/reconfig.d/lvm.d/lvmvgname/lvm_undo.sh. After successfully encapsulating LVM volumes to LSM volumes, execute the undo script to remove the LVM volume group.
Refer to the
Logical Storage Manager
guide for more information about the encapsulation
process.
The following example shows the main steps in the encapsulation process for a volume group named vg1. To encapsulate all volumes in the volume group vg1, enter:
A script generated by
vollvmencap
that
is used for removing an LVM volume group after its volumes have been encapsulated.
Commands: vgchange(8), volintro(8)
Guides: Logical Storage Manager