Unable to add EFI or sliced initialized disks to a CDS disk group
Article ID: 100005954
Updated On:
Description
Error Message
# vxdg -g adddisk =
VxVM vxdg ERROR V-5-1-6478 Device cannot be added to a CDS disk group
Resolution
Beginning with Storage Foundation 4.1 disk groups are created as CDS by default. The CDS setting is a flag in the disk group configuration and can be disabled if it later becomes necessary to add "sliced" formatted disks (such as in the event that 1TB+ devices are used).
Disabling the CDS attribute is production safe and can be performed while the disk group is imported and volumes are mounted.
Note that disabling the CDS attribute will eliminate the ability to cross-import the disk group between OS/System types (for example Solaris to Linux or AIX).
The CDS setting can also be turned back on as long as all devices in the disk group are CDS format.
CDS Off: # vxdg -g set cds=off
CDS On: # vxdg -g set cds=on
Issue/Introduction
Unable to add EFI or sliced initialized disks to a CDS disk group
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