Content-type: text/html Man page of vollvmencap

vollvmencap

Section: Maintenance Commands (8)
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NAME

vollvmencap, vol-lvm-reconfig - Encapsulate LVM volume groups  

SYNOPSIS

/usr/sbin/vollvmencap [-g diskgroup] [-pvolprefix] { lvmvgname }

/usr/sbin/vollvmencap -k [lvmvgname|-a]

/sbin/vol-lvm-reconfig


 

OPTIONS

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.
 

DESCRIPTION

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.
 

EXAMPLES

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:

# /usr/sbin/vollvmencap  /dev/vg1 To execute the scripts created by vollvmencap, enter:
# /sbin/vol-lvm-reconfig Verify the LSM configuration that is created. Then execute the LVM undo script:
# /etc/vol/reconfig.d/lvm.d/vg1/lvm_undo.sh

 

FILES

A script generated by vollvmencap that is used for removing an LVM volume group after its volumes have been encapsulated.
 

SEE ALSO

Commands: vgchange(8), volintro(8)

Guides: Logical Storage Manager


 

Index

NAME
SYNOPSIS
OPTIONS
DESCRIPTION
EXAMPLES
FILES
SEE ALSO

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Time: 02:40:40 GMT, October 02, 2010