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294 Administering volumes
Performing online relayout
Performing online relayout
Note: You need a full license to use this feature.
You can use the
vxassist relayout command to reconfigure the layout of a
volume without taking it offline. The general form of this command is:
# vxassist [-b] [-g diskgroup] relayout volume [layout=layout] \
[relayout_options]
Note: If specified, the -b option makes relayout of the volume a background task.
The following are valid destination layout configurations as determined by the
tables in “Permitted relayout transformations” on page 295:
concat-mirror—concatenated-mirror
concat or span, nostripe, nomirror—concatenated
raid5—RAID-5 (not supported for shared disk groups)
stripe—striped
stripe-mirror—striped-mirror
For example, the following command changes a concatenated volume, vol02, in
disk group, mydg, to a striped volume with the default number of columns, 2,
and default stripe unit size, 64 kilobytes:
# vxassist -g mydg relayout vol02 layout=stripe
On occasions, it may be necessary to perform a relayout on a plex rather than on
a volume. See “Specifying a plex for relayout” on page 298 for more information.