
The actual my activity is to increase one of the file system size which is part of VXVM mirror volume, when I try to add disks to existing diskgroup I have faced this issue.
This issue happened due to DG configuration mismatching and this post may help you when your in the same situation.
Current status of FS / Volume:
[root@ivmprd ~]# df -h /opt/nbuback
Filesystem size used avail capacity Mounted...