Identifying the address spaces or data spaces to be dumped

You can request an SVC dump of the virtual storage for a maximum of 15 address spaces.

To dump the storage of one address space, code ASID=asid addr. If you omit the ASID parameter, the SVC dump will contain the storage of the primary address space (the default). If you code ASID=0, the SVC dump will contain the storage of the home address space.
To dump the storage of multiple address spaces, code ASIDLST=list addr.
To allow the cross-memory mode of the calling program to determine which address spaces to dump, code TYPE=XMEME or TYPE=XMEM. With these parameters, you request an SVC dump of the home, primary, and secondary address spaces, from either the time of the error or the time of the dump request.
To dump ranges of storage within address spaces, code LISTA=list addr.
To dump subpool storage associated with address spaces, code SUBPLST=subpool id list addr.
To dump ranges of referenced storage in address or data spaces, code LISTD=list addr on SDUMPX only.