Based on the OES versions running in cluster nodes, the following are the three types of SBD signatures available:
If the node is running on OES 11, "SBD*" is used as SBD signature to support Hardlink media.
If the node is running on OES 2015, "SBD)" is used as SBD signature to support AD media.
If the node is running on OES 2015 SP1, "SBD(" is used as SBD signature to support Trustee Index media.
If the node is running on OES 2018, "SBD’ " is used as SBD signature.