Review the procedure to remove the registration and reservation keys created by another node from a disk.
To remove the registration and reservation keys from disk
# vxfenadm -g all -f
/tmp/disklist
The output from this command displays the key:
Device Name: /dev/rdsk/c1t12d0
# vxfenadm -p -kA2 -f /tmp/disklist -vA1
# vxfenadm -x -kA2 -f /tmp/disklist