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Making an existing disk group site consistent

 To make an existing disk group site consistent

1. Ensure that the disk group is updated to at least version 140, by running the vxdg upgrade command on it:

   # vxdg upgrade diskgroup

2. On each host that can access the disk group, define the site name:

   # vxdctl set site=sitename

3. Tag all the disks in the disk group with the appropriate site name:

   # vxdisk [-g diskgroup] settag disk site=sitename

4. Use the vxdg move command to move any unsupported RAID-5 volumes to another disk group. Alternatively, use the vxassist convert command to convert the volumes to a supported layout such as mirror or mirror-stripe. You can use the site and mirror=site storage allocation attribute to ensure that the plexes are created on the correct storage.
5. Use the vxevac command to ensue that the volumes have equal number of plexes at each site. You can use the site and mirror=site storage allocation attribute to ensure that the plexes are created on the correct storage.
6. Register a site record for each site with the disk group:

   # vxdg -g diskgroup addsite sitename

7. Turn on site consistency for the disk group:

   # vxdg -g diskgroup set siteconsistent=on

8. Turn on site consistency for each volume in the disk group:

   # vxvol [-g diskgroup] set siteconsistent=on volume ...