METHOD AND SYSTEM FOR CREATING STORAGE DUMP, METHOD AND SYSTEM FOR CATCHING INFORMATION, AND METHOD AND SYSTEM FOR PROVIDING STORAGE DUMP

摘要

PURPOSE: To provide an improved storage dump creating method. CONSTITUTION: When damping control is in a DCA state, a non-dumping command can be executed and the control remains in a state where the dumping control is usable. When an ADT command is issued, a CIP state is set and dumping serialization is maintained. A plurality of dump commands, such as RDOD, RCB, CDD, RDC, RPLDC commands is permitted and the CIP state is maintained. An RDT command changes the dump control state to DCA from CIP and further changes the state to CCSR from CIP. The latest caught dump data command changes the CCSR state to a CCSH state and can execute the RPLDC, RDC, RCB, and RDOD commands while maintaining the CCSH state. The RPLDC command changes the state to the CCSR state. While the RPLDC command executes the CCSR command, non-dumping command, RDC command, and RCB command can be executed.