A tag is an entry in the HFM0PARM member used to specify different options based on the current settings of certain environment variables. The following table shows the tags that can be specified.

Table 1. Z Data Tools Parmlib member tag types
Tag Type Priority Description Usage
Z 1 z/OSĀ® system In a sysplex environment with multiple z/OS images.
V 2 ZDT Version In a environment with multiple concurrent versions of Z Data Tools.
U 3 User's logonid Different options for specific users, typically by exception.