The DFSMShsm Log contains a duplicate of information that is kept in DFSMShsm activity logs, SMF data, and DFSMShsm Problem Determination Aid (PDA) trace data. It is optional, and many customers chose not to expend the amount of overhead needed to maintain these files. However, if you decide to have the DFSMShsm log, and you are running in a multiple DFSMShsm host environment, you must allocate unique LOGX and LOGY data set names for each host. Placing the log on a volume managed by another host may lead to degraded performance or a lockout. Because the log data sets cannot be shared among hosts, you should:

• Catalog the log data sets.
• Allocate two log data sets on the same volume with data set names of qualifier.HA.HSMLOGX and qualifier.HA.HSMLOGY. Substitute the DFSMShsm authorized-user identification for qualifier and substitute a unique DFSMShsm host identifier for n. These substitutions make the log data set names unique and identifiable with the host. Example: If the host identification is 1, the log data set names could be:
  • qualifier.HA.HSMLOGX1
  • qualifier.HA.HSMLOGY1