Summary of changes for z/OS Version 2 Release 1 (V2R1), as updated February 2015

The following changes are made for z/OS Version 2 Release 1 (V2R1), as updated February 2015.

New

The following new SDUMP, SYSABEND, SYSUDUMP, and SYSMDUMP options were added for the CHNGDUMP command:
- HCSAByASID
- HCSANoOwner
- HCSASysOwner
The NAME parameter has been added to the DISPLAY HS,CONFIG command in Displaying Basic HyperSwap information and to the SETHS SWAP command in SETHS command.
The DISPLAY IOS, HYPERWRITE command has been added in Displaying the IBM zHyperWrite data replication status.
The DISPLAY IQP command has been added in Displaying PCIE-related parameters.
The following new SDATA options were added for the DUMP command:
- HCAS
- HCNO
- HCSY
A new UNFENCE parameter has been added for the SETHS command.
The following new SDATA options were added for the SLIP command:
- HCSAByASID
- HCSANoOwner
- HCSASysOwner

In Counter sets output in a .CNT file, the multithreading (MT) utilization counter set is added.
The following commands are updated for multithreading (MT) support:
- DISPLAY - SeeDisplaying hardware event data collection status. The description is extended to cover all subtypes of SMF record type 113.
- MODIFY - See Starting, configuring, and stopping hardware event data collection. The description is extended to cover all subtypes of SMF record type 113.
- START - See Starting hardware instrumentation services (HIS). The description is extended to cover all subtypes of SMF record type 113.
The descriptions of the CSA, LSQA, RGN, and SQA options have been updated in CHNGDUMP command and DUMP command.
The ARM and ARMRESTART parameters, which were omitted in previous editions, have been restored in the syntax diagram and parameter description in FORCE command.
Under the SLIP command, the topic formerly entitled, "Keeping PER Traps from Slowing System Performance," has been updated and replaced by Performance considerations for designing a SLIP trap.
The rules for using wildcard characters with the VARY SMS,MONDS command have been updated in Changing the state of coupling facility cache structures and volumes.