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Obtain address space related information (REQASD and REQFASD) z/OS MVS Programming: Authorized Assembler Services Reference SET-WTO SA23-1375-00 |
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The SYSEVENTs REQASD and REQFASD provide information about an address space's workload activity. You must specify the address space id (ASID) with either the ASID=register or the ASIDL=asid parameter. Both return the same kind of information. REQFASD is quicker; it does not serialize data collection, and does not provide recovery of its own. The user must provide the recovery for REQFASD. The user must supply the address of a storage area large enough to hold the requested data.
Input register informationREQASDFor REQASD, register 1 must point to a parameter list. The parameter list must be non-pageable and addressable via the caller's primary address space. To map the parameter list, use the IRARASD mapping macro described in z/OS MVS Data Areas in z/OS Internet Library at http://www.ibm.com/systems/z/os/zos/bkserv/. The RASDLEN field must be filled in with the length of the RASD parameter list area that is to be used by the SYSEVENT. The constant RASDSIZE can be used to fill in the RASDLEN field. REQFASDFor REQFASD, register 1 must point to a parameter list. The parameter list must be addressable via the caller's primary address space. To map the parameter list, use the IRARASD mapping macro described in z/OS MVS Data Areas in z/OS Internet Library at http://www.ibm.com/systems/z/os/zos/bkserv/. The RASDLEN field must be filled in with the length of the RASD parameter list area that is to be used by the SYSEVENT. The constant RASDSIZE can be used to fill in the RASDLEN field. SYSEVENT REQFASD requires a workarea for the processing. The size of the workarea can be found in the constant RQFASDWA, which is defined in the IRARASD mapping. Additionally, it is necessary to fill the RASDWALEN with the provided workarea length. Prior to executing REQFASD, register 13 must point to a workarea. The workarea must be addressable via the caller's primary address space. Return and reason codesWhen processing is complete for the REQASD and REQFASD SYSEVENTS, the last byte of register 15 contains one of the following hexadecimal return codes:
Example 1Use the SYSEVENT REQASD to extract address space information:
Example 2Use the SYSEVENT REQFASD to extract address space information:
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