Creating Subdisks

You can use the vxmake command to create Volume Manager objects, such as subdisks. To create a subdisk, specify the following criteria:

To create a subdisk, use the following command:

# vxmake sd subdisk_name disk,offset,len

For example, to create a subdisk named disk02-01 that starts at the beginning of disk disk02 and has a length of 8000 sectors, use the following command:

# vxmake sd disk02-01 disk02,0,8000

By default, Volume Manager commands take sizes in sectors. Adding a suffix (such as k, m, or g) changes the unit of size.

If you intend to use the new subdisk to build a volume, you must associate the subdisk with a plex (see “Associating Subdisks”). Subdisks for all plex layouts (concatenated, striped, RAID-5) are created the same way.