VERITAS Volume Manager 3.5 User's Guide - VERITAS Enterprise Administrator (September 2004)

Volume Tasks
VxVM Volumes
Chapter 4 109
Mirrored • Mirroring provides
protection against
disk failure and
reduces the risk of
data loss.
• Mirroring provides
data redundancy by
maintaining
multiple complete
copies of volume
data on different
disks.
• Mirroring provides
improved read
performance.
• A mirrored volume
requires extra disk
space. Each mirror
requires enough disk
space to contain a
complete copy of the
volume.
Table 4-1 Layout Comparison (Continued)
Layout Advantages Disadvantages