Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

volume, and subsequently want to make the plex complete. To complete the plex,
create a subdisk of a size that fits the hole in the sparse plex exactly. Then,
associate the subdisk with the plex by specifying the offset of the beginning of
the hole in the plex, using the following command:
# vxsd [-g diskgroup] -l offset assoc sparse_plex exact_size_subdisk
For example, the following command would insert the subdisk, mydg15-01, in the
plex, vol10-01, starting at an offset of 4096 blocks:
# vxsd -g mydg -l 4096b assoc vol10-01 mydg15-01
Note: The subdisk must be exactly the right size. VxVM does not allow the space
defined for two subdisks to overlap within a plex.
For striped or RAID-5 plexes, use the following command to specify a column
number and column offset for the subdisk to be added:
# vxsd [-g diskgroup] -l column_#/offset assoc plex subdisk ...
If only one number is specified with the -l option for striped plexes, the number
is interpreted as a column number and the subdisk is associated at the end of the
column.
For example, the following command would add the subdisk, mydg11-01, to the
end of column 1 of the plex, vol02-01:
# vxsd -g mydg -l 1 assoc vol02-01 mydg11-01
Alternatively, to add M subdisks at the end of each of the N columns in a striped
or RAID-5 volume, you can use the following form of the vxsd command:
# vxsd [-g diskgroup] assoc plex subdisk1:0 ... subdiskM:N-1
The following example shows how to append three subdisk to the ends of the three
columns in a striped plex, vol-01, in the disk group, mydg:
# vxsd -g mydg assoc vol01-01 mydg10-01:0 mydg11-01:1 mydg12-01:2
If a subdisk is filling a “hole” in the plex (that is, some portion of the volume logical
address space is mapped by the subdisk), the subdisk is considered stale. If the
volume is enabled, the association operation regenerates data that belongs on the
subdisk. Otherwise, it is marked as stale and is recovered when the volume is
started.
Creating and administering subdisks
Associating subdisks with plexes
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