VERITAS Volume Manager 4.1 Administrator's Guide

Administering Volumes

Performing Online Relayout

Chapter 8320

Tagging a Relayout Operation

If you want to control the progress of a relayout operation, for example to

pause or reverse it, use the -t option to vxassist to specify a task tag for

the operation. For example, this relayout is performed as a background

task and has the tag myconv:

# vxassist -b -g fsgrp -t myconv relayout vol04 layout=raid5

ncol=4

See the following sections, “Viewing the Status of a Relayout” on

page 320 and “Controlling the Progress of a Relayout” on page 320 for

more information about tracking and controlling the progress of

relayout.

Viewing the Status of a Relayout

Online relayout operations take some time to perform. You can use the

vxrelayout command to obtain information about the status of a relayout

operation. For example, the command:

# vxrelayout status vol04

might display output similar to this:

STRIPED, columns=5, stwidth=128--> STRIPED, columns=6, stwidth=128

Relayout running, 68.58% completed.

In this example, the reconﬁguration of a striped volume from 5 to 6

columns is in progress, and is just over two-thirds complete.

See the vxrelayout(1M) manual page for more information about this

command.

If you speciﬁed a task tag to vxassist when you started the relayout, you

can use this tag with the vxtask command to monitor the progress of the

relayout. For example, to monitor the task tagged as myconv, enter:

# vxtask monitor myconv

Controlling the Progress of a Relayout

You can use the vxtask command to stop (pause) the relayout

temporarily, or to cancel it altogether (abort). If you speciﬁed a task tag

to vxassist when you started the relayout, you can use this tag to specify

the task to vxtask. For example, to pause the relayout operation tagged

as myconv, enter: