Toolserver/Manage Solaris Volume Manager (SVM)
From Wikitech
SVM is Solaris' software RAID solution.
The basic unit of SVM arrays is 'metadevice'. A metadevice sits on top of a disk slice (partition). The most basic metadevice is the stripe; a single device is represented by a one-disk stripe. Stripes can be combined into mirrors.
metadevices are named d#, where # is a number between 0 and 127.
Example: d20, a mirror, is composed of stripes d21 and d22.
Before a disk can be used in SVM, it must be partitioned and sliced. The easiest way to do this, if the disk is part of a mirror, is:
prtvtoc -s /dev/rdsk/old-device | fmthard /dev/rdsk/new-device
Before you can use fmthard, you must label the disk (see Toolserver/Manage individual disks under Solaris).
- metastat
- display current metadevices
- metareplace -e mirror component
- replace a broken component with a new one at the same location, e.g. if a disk was hot-swapped
- metareplace mirror old-component new-component
- replace a broken component with a new one
