Disk Groups Operation

Creating a disk group
/usr/sbin/vxdg init <disk_group> <disk_name>
Example : vxdg init datadg c0t0d0s2

Displaying free disk space in a disk group

vxdg -g <disk_group> free
Example : mars# vxdg -g datadg free

DISK DEVICE TAG OFFSET LENGTH FLAGS
c1t0d0 c1t0d0s2 c1t0d0 8273920 104720 -
c1t1d0 c1t1d0s2 c1t1d0 8273920 104720 -
c1t2d0 c1t2d0s2 c1t2d0 8273920 104720 -
c2t0d0 c2t0d0s2 c2t0d0 4104000 4274640 -
c2t1d0 c2t1d0s2 c2t1d0 4104000 4274640 -
c2t2d0 c2t2d0s2 c2t2d0 4104000 4274640 -

Displaying a disk group version

vxdg list <disk_group> | grep -i ver
Example: mars# vxdg list datadg | grep -i ver
version: 60

Upgrading the disk group version
vxdg -T <Version> upgrade <Disk_Group>
Example: vxdg -T 60 upgrade datadg

Remove a disk from a disk group
vxdg rmdisk <disk_name>

Exact Estimate of availble disk space
vxassist -g <disk_group> mazsize layout=mirror <disk_lists>
Example: vxassist -g datadg maxsize -> to see the max size in a disk group
vxassist -g datadg maxsize layout=option - (strip, mirror, raid5, raid5,nolog)

Deporting and importing disk groups
   
vxdg deport <dg_name> Simple deport
vxdg -n <new_dg_name> deport <dg_name> Deport and rename diskgroup
vxdg import <dg_name> Simple import
vxdg -n <new_dg_name> import <dg_name> Import and rename diskgroup
vxdg -f import <dg_name> Need to force if a disk is missing
vxdg -C import <dg_name> Clears the hostid and importing a diskgroup to another host after crash

 

 

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