You can find a list of all the CA IDMS Education offerings here:
CA Technologies Global Search Results
They are all fee-based Web-based trainings; the list includes several DBA-related topics: security, database maintenance, etc.
On the CA Support Online site, after signing on, you can also find the following:
A list of free IDMS webcasts replays: this includes topics such as Visual DBA, Indexing, Performance & Tuning, etc.: CA IDMS Webcast Replays - CA Technologies
A list of free IDMS Videos, including topics related to zIIP exploitation, keeping your IDMS systems healthy, monitoring system performance using Visual DBA, etc: CA IDMS Video Library - CA Technologies
I hope these options are helpful..., .. ; .