VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Volume Layouts in VxVM
20 VERITAS Volume Manager Administrator’s Guide
“Example of a Striped Plex with Concatenated Subdisks per Column” illustrates a striped
plex with three columns containing subdisks of different sizes. Each column contains a
differentnumber ofsubdisks. There is onecolumn per physicaldisk. Striped plexes canbe
created by using asingle subdisk from each of the VM disks being striped across. It is also
possible to allocate space from different regions of the same disk or from another disk (for
example, if the size of the plex is increased). Columns can also contain subdisks from
different VM disks.
Example of a Striped Plex with Concatenated Subdisks per Column
See “Creating a Striped Volume” on page 173 for information on how to create a striped
volume.
VM Disks
SU = Stripe Unit
Striped Plex
Column 1
Column 2
Column 3
disk02
disk02-01
disk02-02
disk03
disk03-01
su1
su2
su3
su4
su5
su6
disk01-01
disk01-02
disk01-03
disk01
.
.
.
disk01-01
disk01-02
disk01-03
disk02-01
disk02-02
disk03-01
Physical Disks
su2
su3
su5
su6
devname3
devname2
devname1
. . .
. . .
. . .
su4su1