The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
You can use the tunefs.ocfs2 command to query or change volume parameters. For example, to find out the label, UUID and the number of node slots for a volume:
# tunefs.ocfs2 -Q "Label = %V\nUUID = %U\nNumSlots =%N\n" /dev/sdb
Label = myvol
UUID = CBB8D5E0C169497C8B52A0FD555C7A3E
NumSlots = 4Generate a new UUID for a volume:
#tunefs.ocfs2 -U /dev/sda#tunefs.ocfs2 -Q "Label = %V\nUUID = %U\nNumSlots =%N\n" /dev/sdbLabel = myvol UUID = 48E56A2BBAB34A9EB1BE832B3C36AB5C NumSlots = 4