"ERROR V-5-1-4703 Problem running vxassist command for volume" reported when using vxresize command for Veritas Volume Manager (VxVM)

Problem

When adding new disk(s) to a Veritas Volume Manager (VxVM) diskgroup with an intent to resize a volume, the "vxresize" command fails.

Error Message

# VxVM vxedit ERROR V-5-1-926 Record xxxx not in disk group configuration

VxVM vxresize ERROR V-5-1-4703 Problem running vxassist command for volume <volume_name>, in diskgroup <diskgroup_name>

Cause

The issues occurs if the volume selected for resizing is a snapshot volume with DRL attached and does not have the "sitetags" attribute specified for it. 

Solution

For this example, we plan to expand a volume "testvol" by 40g, that is a part of diskgroup "testDg"

If the volume is a part of Veritas Cluster Server (VCS), freeze the cluster and run below commands to perform a successful resize operation.

1) /usr/sbin/vxconfigd -k -m enable
 
2) vxsnap -f -g testDg unprepare testvol (This will unprepare the snapshot and force delete the DRL log from the volume)
 
3) Now resize the volume

vxresize -b -g testDg testvol +40g