Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

■ Taking plexes offline
■ Detaching plexes
■ Reattaching plexes
■ Moving plexes
■ Copying volumes to plexes
■ Dissociating and removing plexes
■ Changing plex attributes
About subdisks
Subdisks are the low-level building blocks in a Veritas Volume Manager (VxVM)
configuration that are required to create plexes and volumes.
See “Creating a volume” on page 299.
Note: Most VxVM commands require superuser or equivalent privileges.
Creating subdisks
Use the vxmake command to create VxVM objects, such as subdisks:
# vxmake [-g diskgroup] sd subdisk diskname,offset,length
where subdisk is the name of the subdisk, diskname is the disk name, offset is the
starting point (offset) of the subdisk within the disk, and length is the length of
the subdisk.
For example, to create a subdisk named mydg02-01 in the disk group, mydg, that
starts at the beginning of disk mydg02 and has a length of 8000 sectors, use the
following command:
# vxmake -g mydg sd mydg02-01 mydg02,0,8000
Note: As for all VxVM commands, the default size unit is s, representing a sector.
Add a suffix, such as k for kilobyte, m for megabyte or g for gigabyte, to change
the unit of size. For example, 500m would represent 500 megabytes.
Creating and administering subdisks and plexes
About subdisks
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