Deleting, replacing or draining page data sets

You might need to remove a local page data set from the system for any of the following reasons:
  • The hardware is being reconfigured.
  • The hardware is generating I/O errors.
  • The configuration of the page data set is being changed.
  • System tuning requires the change.

To remove local page data sets or SCM from your system, use the CONFIG OFFLINE command.

The PAGEDEL command allows you to delete, replace or drain local page data set without an IPL, though the command can be disruptive and must be used judiciously. See z/OS MVS System Commands for the description of the PAGEDEL command.

ASM will reject a PAGEDEL command that will decrease the amount of auxiliary storage below an acceptable limit. ASM determines what is acceptable by examining SRM's auxiliary storage threshold constant, MCCASMTI. If it is determined that too much storage would be deleted by the PAGEDEL command, ASM will fail the page delete request.

Parent topic: Estimating total size of paging data sets