Target libraries (TLIBs)

These data sets are SMP/E target libraries for products sets mentioned in Which product sets are appropriate?.

If you want to take advantage of indirect volume serial support, do not SMS-manage the target data sets that reside on volumes TVOL1 through TVOLn.

TVOL1 through TVOLn may be shared with other systems (for IPCS or WLM migrations, for example). If TVOL1 does not contain enough space to hold all the data sets listed for your system, then the criterion for a split (between TVOL1A and TVOL1B, for instance) would be that the IPCS and change migration libraries should be kept together on the first volume (TVOL1A).

If you support more than one language and are short of space on TVOL1, you might choose to put your primary language on TVOL1A and your secondary languages on TVOL1B. An additional criterion for a TVOL1A and TVOL1B split is to keep together those data sets that are less critical to the system and that do not affect existing catalog structures (for instance, data sets that are new to z/OS® and are not critical to system usage).

When you install using ServerPac or dump-by-data set SystemPac, you should take advantage of the Recommended System Layout enhancement. This function takes into consideration the volume space available and the data set sizes in your order, and places the data sets accordingly. If you are a CBPDO customer, you might have to calculate available space for the data set types on target volumes to ensure that it is sufficient. Depending on the volume type, you might have to add another target volume.

TVOL1 through TVOLn contain the z/OS product set target libraries, except for HFS and zFS files.