A fix is available
APAR status
Closed as new function.
Error description
new function
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: RMF users * **************************************************************** * PROBLEM DESCRIPTION: New function APAR to support the * * new SuperPAV function of DS8000 * * available with DS8880 microcode * * release 8.1 * * * * Postprocessor I/O Queuing Activity * * report is extended. * * * * New overview conditions are added * * based on SMF record 78 subtype 3. * * * * Following SMF records area extended * * - SMF 74 subtype 1 Device Activity * * - SMF 78 subtype 3 I/O Queuing * * Activity * **************************************************************** * RECOMMENDATION: * **************************************************************** New function APAR to provide RMF support for SuperPAV which enhances HyperPAV solution on IBM System Storage DS8000 series. +--------------------------------------------------------------+ The Postprocessor I/O Queuing Activity report is now grouped into 3 sections: - Input/Output Processors - Alias Management Groups - Logical Control Units The Alias Management Group section is reported only, if the system is running in SuperPAV mode and there are AMGs defined. It shows accumulated values for CHPIDs and LCUs that are grouped to AMGs. If the LCU is grouped to an AMG, the AMG number is reported under column LCU/AMG in the Logical Control Unit section. LCUs are now sorted by AMG and LCU number. LCUs not grouped to an AMG are displayed first. +--------------------------------------------------------------+ New/Changed Overview Conditions Following New Postprocessor overview conditions based on SMF 78-3 are provided CONDITION NAME QUALIFIER SOURCE & ALGORITHM -----------------+--------+-------------+---------------------- Contention rate IOCTR lcuid R783QCT QCT/INT IOAMG(amg) SMF78INT -----------------+--------+-------------+---------------------- Average queue IODLQ lcuid R783QCT (QSM-QCT)/QCT length of delayed IOAMG(amg) R783QSM I/O requests -----------------+--------+-------------+---------------------- Channel path IOART lcuid R783PT (PTi)/INT taken rate IOAMG(amg) SMF78INT IOCHPID(chpid) -----------------+--------+-------------+---------------------- Percentage of IOCUB lcuid R783DPB MAX(CUBi*100)/ requests caused IOAMG(amg) R783CUB (PT+CUB+DPB)i by control unit IOCHPID(chpid)R783PT MIN(CUBi*100)/ busy (PT+CUB+DPB)i when IOCHPID selected: CUBi*100/ (PT+CUB+DPB)i -----------------+--------+-------------+---------------------- Percentage of IODPB lcuid R783DPB MAX(DPBi*100)/ requests caused IOAMG(amg) R783CUB (PT+CUB+DPB)i by director port IOCHPID(chpid)R783PT MIN(DPBi*100)/ busy (PT+CUB+DPB)i When IOCHPID selected: DPBi*100/ (PT+CUB+DPB)i -----------------+--------+-------------+---------------------- Average control IOCBT lcuid R783CBT Sum(CBT)/ unit busy delay IOAMG(amg) R783PT Sum(PT) time IOCHPID(chpid) -----------------+--------+-------------+---------------------- Average initial IOCMR lcuid R783CMR Sum(CMR)/ command response IOAMG(amg) R783PT Sum(PT) time IOCHPID(chpid) -----------------+--------+-------------+---------------------- Average channel IOCSS lcuid R783CSST CSST/ subsystem delay IOAMG(amg) R783PT Sum(PT) time -----------------+--------+-------------+---------------------- HyperPAV wait IOHWAIT lcuid R783HNAI HNAI/ ratio IOAMG(amg) R783HTIO HTIO (Sum(HNAI))/ (Sum(HTIO)) -----------------+--------+-------------+---------------------- Maximum number IOHMAX lcuid R783HAIU HAIU+XHBC of in-use IOAMG(amg) R783XHBC HyperPAV aliases When IOAMG selected: Maximum over all LCUs of that AMG MAX(HAIU+XHBC) -----------------+--------+-------------+---------------------- Maximum number IOHDMAX lcuid R783HCAD HCAD of in-use IOAMG(amg) HyperPAV aliases for one device -----------------+--------+-------------+---------------------- The high IOHIQQC lcuid R783HIOQ HIOQ watermark of IOAMG(amg) queued I/O requests -----------------+--------+-------------+---------------------- Ratio of IOXSAREQ IOAMG(amg) R783XAUC Sum(XAUC)/ successful alias R783XANC Sum(XANC) requests -----------------+--------+-------------+---------------------- Ratio of IOXUAHRQ IOAMG(amg) R783XNHC Sum(XNHC)/ unsuccessful R783XANC Sum(XANC) alias requests in home LCU -----------------+--------+-------------+---------------------- Rate of aliases IOXABC IOAMG(amg) R783XABC Sum(XABC)/INT borrowed from SMF78INT peer LCUs -----------------+--------+-------------+---------------------- High watermark IOXHCBA IOAMG(amg) R783XHBC XHBC of concurrently borrowed aliases -----------------+--------+-------------+---------------------- Rate of aliases IOXALC IOAMG(amg) R783XALC Sum(XALC)/INT loaned to a peer SMF78INT LCU -----------------+--------+-------------+---------------------- High watermark IOXHCLA IOAMG(amg) R783XHLC XHLC of concurrently loaned aliases to a peer LCU -----------------+--------+-------------+---------------------- Average queue IOXCQD IOAMG(amg) R783XCQD Sum(XCQD)/ length when an R783XANC Sum(XANC) alias was needed -----------------+--------+-------------+---------------------- Average number IOXIUAC IOAMG(amg) R783XCIU Sum(XCIU)/ of in-use R783XANC Sum(XANC) aliases when an alias was needed -----------------+--------+-------------+---------------------- +--------------------------------------------------------------+ SMF RECORD CHANGES With this APAR, the SMF record level change number at offset 51 (x33) in all RMF Product sections changes to x7B for FMID HRM77A0 and HRM7790. +--------------------------------------------------------------+ SMF RECORD TYPE 74 SUBTYPE 1 (DEVICE ACTIVITY) Device Data section: OFFSETS NAME LEN FORMAT DESCRIPTION : : : : : : 121 x79 SMF74CN2 1 Binary Device Flag extension 2 BIT MEANING WHEN SET 0 HyperWrite requested 1 Device in SuperPAV mode 2-7 Reserved : : : : : : 184 xB8 3 Reserved 187 xBB SMF74AGC 1 Binary The Alias Management Group number defined on the physical controller for this device. This number is valid, if the device belongs to a DASD subsystem that supports Alias Management Groups and bit 1 of SMF74CN2 is set 188 xBC SMF74AGS 4 Binary The Alias Management Group number associated by z/OS for this device on this system. This number is valid, if the device belongs to a DASD subsystem that supports Alias Management Groups and bit 1 of SMF74CN2 is set. +--------------------------------------------------------------+ SMF RECORD TYPE 78 SUBTYPE 3 (I/O QUEUING ACTIVITY) I/O Queuing Global section: OFFSETS NAME LEN FORMAT DESCRIPTION : : : : : : 1 x1 R783GFLX 1 Binary IOQ global flags extended BIT MEANING WHEN SET 0 Alias Management Groups available 1-7 Reserved I/O Queuing Configuratio Control section: OFFSETS NAME LEN FORMAT DESCRIPTION : : : : : : 12 xC 2 Reserved 15 xF R783AMGC 1 Binary The Alias Management Group number defined on the physical controller for this LCU. This number is valid, if the LCU is assigned to a DASD subsystem that supports Alias Management Groups and bit 7 of R783DST is set. 16 x10 R783AMGS 4 Binary The Alias Management Group number assigned by z/OS for this LCU on this system. This number is valid, if the LCU is assigned to a DASD subsystem that supports Alias Management Groups and bit 7 of R783DST is set. I/O Queuing Data section: OFFSETS NAME LEN FORMAT DESCRIPTION : : : : : : 2 x2 R783DST 1 Binary Data status BIT MEANING WHEN SET 0 No hardware measurements 1 Dynamically changed 2 Dynamically added 3 Config Change attempted 4 LCU contains DCM managed channels 5 Path attributes are valid 6 LCU has HyperPAV devices 7 LCU has SuperPAV devices HyperPAV/SuperPAV Data section: OFFSETS NAME LEN FORMAT DESCRIPTION : : : : : : 16 x10 R783HAIU 4 Binary The high water mark of the number of in-use HyperPAV-alias devices for the LSS (does not include borrowed alias devices). 20 x14 R783HCAD 4 Binary The high water mark of the number of aliases concurrently in use by one of the HyperPAV-base devices of the LSS (including loaned alias devices). : : : : : : 28 x1C 12 Reserved 40 x28 R783XANC 4 Float The number of times an alias was needed to start an I/O. 44 x2C R783XAUC 4 Float The number of times an alias was needed to start an I/O and one was used. 48 x30 R783XNHC 4 Float The number of times an alias was needed to start an I/O, but none was available in the home LCU. 52 x34 R783XABC 4 Float The number of times an alias was borrowed from a peer LCU. 56 x38 R783XCBC 4 Binary The number of aliases concurrently borrowed from peer LCUs 60 x3C R783XHBC 4 Binary The high water mark of concurrently borrowed aliases from peer LCUs. 64 x40 R783XALC 4 Float The number of times an alias was loaned to a peer LCU. 68 x44 R783XCLC 4 Binary The number of aliases concurrently loaned to peer LCUs 72 x48 R783XHLC 4 Binary The high water mark of concurrently loaned aliases to peer LCUs. 76 x4C R783CNAG 4 Float The number of attempts that were made to borrow an alias from peer LCUs, but none were available. 80 x50 R783XCQD 4 Float The cumulative number of I/Os queued at the subsystem level when aliases were needed. 84 x54 R783XCIU 4 Float The cumulative number of aliases defined to this subsystem that were in use when aliases were needed.
Problem conclusion
Temporary fix
Comments
APAR Information
APAR number
OA49415
Reported component name
RMF
Reported component ID
566527404
Reported release
780
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-11-17
Closed date
2016-06-02
Last modified date
2016-07-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UA81548 UA81549
Modules/Macros
ERBDUDEV ERBDUIGQ ERBDUIOQ ERBEXBLT ERBEXCIT ERBEXDEV ERBEXIGQ ERBEXIOQ ERBFLCNV ERBGDEV ERBGIGQ ERBGIOQ ERBLISTO ERBMFBSR ERBMFDAS ERBMFDCQ ERBMFDDP ERBMFDEA ERBMFDGQ ERBMFDOQ ERBMFDQI ERBMFDQS ERBMFEAR ERBMFEAS ERBMFEAX ERBMFECQ ERBMFEDV ERBMFEGQ ERBMFEOQ ERBMFEVT ERBMFE33 ERBMFIDA ERBMFIDB ERBMFIDV ERBMFIDX ERBMFIOQ ERBMFIQA ERBMFIQB ERBMFIZS ERBMFLQV ERBMFPER ERBMFPIR ERBMFPSC ERBMFQOP ERBMFRDR ERBMFRGR ERBMFRQR ERBMFSCS ERBMFSMS ERBMFTMA ERBPCTBL ERBPPASS ERBPPCOM ERBPPCON ERBRMFPP ERBR741 ERBSCAN ERBSMFI ERBSMF78 ERB3GCTC ERB3GSMF ERB3GSMM ERB3RTBR ERB4MAIN HRM77A0J HRM7790J
Fix information
Fixed component name
RMF
Fixed component ID
566527404
Applicable component levels
Fix is available
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Document Information
Modified date:
04 July 2016