Original Publication Date: 1992-Mar-01
Included in the Prior Art Database: 2005-Mar-22
Day, AM: AUTHOR [+2]
Disclosed is a mechanism that allows MVS to automatically re-IPL itself after a wait state (with or without taking a Stand-Alone Dump prior to IPLing) (Image Omitted)
a mechanism that allows MVS to automatically
re-IPL itself after a wait state (with or without taking a
Stand-Alone Dump prior to IPLing)
system termination sequence, prior to placing the
last CPU in a disabled wait state, MVS will consult the appropriate
SYS1. PARMLIB member to determine the action to take. The action
may be one of the following:
. do nothing (i.e., wait state),
. perform I/O reset, then wait state,
. IPL the specified system,
. take Stand-Alone Dump, then IPL the specified system.
If the action
other than "do nothing" is prescribed, MVS will
submit the request for the processor controller element (PCE) to
perform the specified action.
If the action
was to take stand-alone dump and re IPL MVS
afterwards, prior to invoking the PCE, MVS will store the "re-IPL
MVS" request and appropriate information (IPL device and load
parameter) for SADMP to use.
Dump will obtain the instructions to IPL MVS from
the data stored by MVS. Upon completion, SADMP will request the PCE
to IPL MVS using the stored parameters.
transitions are possible:
MVS -> wait state (no action)
MVS -> I/O reset
MVS -> SADMP -> wait (no action)