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

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.
If you intend to use the new subdisk to build a volume, you must associate the
subdisk with a plex.
See “Associating subdisks with plexes” on page 253.
Subdisks for all plex layouts (concatenated, striped, RAID-5) are created the same
way.
Displaying subdisk information
The vxprint command displays information about VxVM objects. To display
general information for all subdisks, use this command:
# vxprint -st
The -s option specifies information about subdisks. The -t option prints a
single-line output record that depends on the type of object being listed.
The following is example output:
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
Creating and administering subdisks
Creating subdisks
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