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

Volume Layouts in VxVM
24 VERITAS Volume Manager Administrator’s Guide
How the Failure of a Single Disk Affects Mirrored-Stripe and Striped-Mirror Volumes
Compared to mirrored-stripe volumes, striped-mirror volumes are more tolerant of disk
failure, and recovery time is shorter.
If the layered volume concatenates instead of striping the underlying mirrored volumes,
the volume is termed a concatenated-mirror volume.
Note The VERITAS Enterprise Administrator (VEA) terms a striped-mirror as
Striped-Pro, and a concatenated-mirror as Concatenated-Pro.
Striped Plex
Striped-Mirror
Volume with
Striped Plex
Detached
Mirrored-Stripe
Volume with
X
X
Failure of Disk
Detaches Plex
Failure of Disk Removes
Redundancy from a Mirror
Striped Plex
no Redundancy
Partial
Redundancy