Hi Mike,
may I ask you about the configuration details of your Sybase resource? Is this of type "Database" or of type "Instance"? I assume it's of type "Database", but please let me know.
The Sybase ASE plugin quiesces and un-quiesces the identified/specified database sequentially - it does not execute a single quiesce database <tagname> hold <list of database names> command. There's no flag/configuration setting to change this behaviour.
At the end, you nevertheless got all the databases quiesced before the snapshot/s on the configured volumes is/are taken, and un-quiesced afterwards. Would this meet your expectations?
Regards,
Dietmar