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	Submitted by: lvo
coolcommand how to create a mirror for swap in Solaris Volume Manager
Description To create a mirror for swap in Solaris Volume Manager: Example to mirror the slice /dev/dsk/c0t0d0s3 which contains the swap file which cannot be unmounted during normal system usage: 1) Create one stripe that contains the one slice c0t0d0s3 named d21: # metainit -f d21 1 1 c0t0d0s3 2) Create a second concat/stripe on an unused slice named d22: # metainit d22 1 1 c2t3d0s7 3) Create a one-way mirror with d21 named d20: # metainit d20 -m d21 4) # Edit the /etc/vfstab file so that the swap file system now refers to the newly created mirror: # /dev/dsk/c0t0d0s3 - - swap - no - /dev/md/dsk/d20 - - swap - no - 5) Reboot the system: # reboot 6) Attach submirror d22 to mirror d20: # metattach d20 d22 7) Verify the mirror d20: # metastat d20 8) Verify that the swap file system is mounted on the d20 volume: # swap -l Note: Solaris Volume Manager was previously known as Solstice Disksuite. This command should work for both.
Example metainit d20 -m d21; vi /etc/vfstab; reboot; metattach d20 d22; swap -l

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