Filter
Top Products
44 Understanding Veritas Volume Manager
Volume layouts in VxVM
Figure 1-18 Striped-mirror volume laid out on six disks
See “Creating a striped-mirror volume” on page 254 for information on how to
create a striped-mirrored volume.
As shown in Figure 1-19, the failure of a disk in a mirrored- stripe layout
detaches an entire data plex, thereby losing redundancy on the entire volume.
When the disk is replaced, the entire plex must be brought up to date.
Recovering the entire plex can take a substantial amount of time. If a disk fails
in a striped-mirror layout, only the failing subdisk must be detached, and only
that portion of the volume loses redundancy. When the disk is replaced, only a
portion of the volume needs to be recovered. Additionally, a mirrored-stripe
volume is more vulnerable to being put out of use altogether should a second
disk fail before the first failed disk has been replaced, either manually or by hot-
relocation.
Striped plex
Mirror
Striped-mirror
volume
Underlying mirrored volumes
Column 0 Column 1 Column 2
Column 0 Column 1 Column 2