Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

39Understanding Veritas Volume Manager
Volume layouts in VxVM
Figure 1-16 Example of a striped plex with concatenated subdisks per column
See “Creating a striped volume” on page 245 for information on how to create a striped
volume.
Mirroring (RAID-1)
Mirroring uses multiple mirrors (plexes) to duplicate the information contained in a
volume. In the event of a physical disk failure, the plex on the failed disk becomes
unavailable, but the system continues to operate using the unaffected mirrors.
Subdisks
Physical disks
Column 2
Striped plex
Stripe units
su2
su3
su5
su6
Column 0
devname3
devname2
devname1
. . .
. . .
. . .
su4su1
disk01
disk03disk02
disk01-01
VM disks
su1 su2
su3
su4 su5 su6
. . .
Column 1
disk02-02
disk02-01
disk03-02
disk03-01
disk03-03
disk01-01
disk02-02
disk02-01
disk03-02
disk03-01
disk03-03
disk01-01
disk02-02
disk02-01
disk03-02
disk03-01
disk03-03