Summary Dump Data

If the dump contains summary dump data, IPCS issues message BLS18160D as follows:

BLS18160D May summary data be used by dump access?  Enter Y to
use, N to bypass

This message asks you to indicate whether you want summary dump data processed during dump initialization. The summary dump data contains data captured closest to the time of the failure. If you reply Y to use this data, IPCS will not be able to display storage keys using the DISPLAY(MACHINE) parameter.

In some cases, the dump values generated when summary dump data is processed can be misleading. For example, if the dump is a result of the SDUMP macro and BRANCH=YES was specified, then replying:

YES: Causes the PSAAOLD field to contain the address space control block (ASCB) address of the address space that issued the SDUMP.
NO: Causes the PSAAOLD field to contain the address of either the address space that is dumped (if one ASID is being dumped) or the master scheduler's address space (if more than one ASID is being dumped).