VERITAS Volume Manager 4.1 Administrator's Guide

Administering Volumes
Converting Between Layered and Non-Layered Volumes
Chapter 8322
Converting Between Layered and
Non-Layered Volumes
The vxassist convert command transforms volume layouts between
layered and non-layered forms:
# vxassist [-b] convert volume [layout=layout]
[convert_options]
NOTE If specified, the -b option makes conversion of the volume a background
task.
The following conversion layouts are supported:
stripe-mirror—mirrored-stripe to striped-mirror
mirror-stripe—striped-mirror to mirrored-stripe
concat-mirror—mirrored-concatenated to concatenated-mirror
mirror-concat—concatenated-mirror to mirrored-concatenated
Volume conversion can be used before or after performing online relayout
to achieve a larger number of transformations than would otherwise be
possible. During relayout process, a volume may also be converted into a
layout that is intermediate to the one that is desired. For example, to
convert a volume from a 4-column mirrored-stripe to a 5-column
mirrored-stripe, first use vxassist relayout to convert the volume to a
5-column striped-mirror:
# vxassist relayout vol1 ncol=5
When the relayout has completed, use the vxassist convert command to
change the resulting layered striped-mirror volume to a non-layered
mirrored-stripe:
# vxassist convert vol1 layout=mirror-stripe