Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Volume Layouts in VxVM
20 VERITAS Volume Manager Administrator’s Guide
The remaining free space in the subdisk disk02-02 on VM disk disk02 can be put to
other uses.
Example of Spanning
Caution Spanning a plex across multiple disks increases the chance that a disk failure
results in failure of the assigned volume. Use mirroring or RAID-5 (both
described later) to reduce the risk that a single disk failure results in a volume
failure.
See “Creating a Volume on Any Disk” on page 203 for information on how to create a
concatenated volume that may span several disks.
n n+1 n+2 n+3
disk01
disk01-01
VM Disks
Physical Disks
Plex with
Data Blocks
devname1
disk01-01 disk02-01
disk02
devname2
disk02-01
Subdisks
n+3
disk02-02
disk02-01
disk01-01
Data in
disk01-01
Data in
disk02-01
nn+1 n+2
Concatenated Subdisks