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Conceitos de Capacity Planning e Sysplex por Fernando Ferreira

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1. © 2009 IBM Corporation CMG 2014 Fernando Ferreira IBM ATS System z - zChampion – IBM Academy 15 Maio 2014 Conceitos e desafios de Planejamento de capacidade em…
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  • 1. © 2009 IBM Corporation CMG 2014 Fernando Ferreira IBM ATS System z - zChampion – IBM Academy 15 Maio 2014 Conceitos e desafios de Planejamento de capacidade em ambiente Parallel Sysplex
  • 2. ©2013IBMCorporation CMG 2014 Index • Introdução • z/OS • Coupling Facility • Conectividade • Referencias 2
  • 3. ©2013IBMCorporation CMG 2014 Introdução 3
  • 4. ©2013IBMCorporation CMG 2014 Fatores de Performance 4 CF CEC Velocidade de processador Tipo de request (sinc/assinc) Conectividade (CHPID,Subcanal ) Coupling facility Velocidade de processador Configuraçào (ded/shared) Carga Memória Link Tipo deCF link Banda PATH Busy Miscelaneous Duplexing Estruturas Distancia
  • 5. ©2013IBMCorporation CMG 2014 Coupling Facility 5 CF Componentes Quantidade de CFs Tipo/Modelo CEC Numero/tipo de processadores Configuração (ded/shared) Memória Canais FlashExpress CBU Fatores Numero de requests Tipos de estrutura Tipo de workload Configuração do CEC (CF) Nivel CFCC Configuração do CEC (z/OS) Topologia Duplexing Necessidade de recursos “spare”
  • 6. ©2013IBMCorporation CMG 2014 z/OS CEC 6 CF Distancia Componentes Capacidade Numero/tipo de processadores Memória Canais Fatores Numero de requests Tipos de estrutura Tipo de workload Performance CF Distancia Topologia Tipo de lInks Duplexing
  • 7. ©2013IBMCorporation CMG 2014 Coupling Facility 7
  • 8. ©2013IBMCorporation CMG 2014 Topologia CF 1 CF 2 Sys B Site A Site B Sys 2 5k m 0k m Sys 1 CF 3
  • 9. ©2013IBMCorporation CMG 2014 CF Duplexing 9 CF 1 CF 2 Sys B Site A Site B Sys A 5k m 0k m
  • 10. ©2013IBMCorporation CMG 2014 Configuracão
  • 11. ©2013IBMCorporation CMG 2014 Arquitetura
  • 12. ©2013IBMCorporation CMG 2014 z/OS 12
  • 13. ©2013IBMCorporation CMG 2014 CPU x Service Time 0 5 10 15 20 25 30 35 40 45 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 Service Time CPUTime Async Sync Sincrono x Assincrono - z/OS Heuristic Algoritm 13 Note 1 ; Escale used is only a comparison example +10µ +33µX +21µX +??µ
  • 14. ©2013IBMCorporation CMG 2014 Sincrono x Assincrono – Nova opção (SYNCASYNC) 14 z/OS V2.1, V1.13, V1.12 PARMLIB COPLEXX SYNCASYNC SIMPLEX(DEFAULT) DUPLEX(32) SYNCASYNC LOCKSIMPLEX (DEFAULT) LOCKDUPLEX(38) or SETXCF MODIFY,SYNCASYNC,LOCKSIMPLEX=38 CPU x Service Time - Sync/Async Threshold 0 10 20 30 40 50 60 70 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Service Time CPUTime Async Sync CPU x Service Time - Sync/Async Threshold 0 10 20 30 40 50 60 70 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Service Time CPUTime Async Sync Threshold D XCF,C IXC357I 10.26.53 DISPLAY XCF 470 SYSTEM FERNAFE DATA INTERVAL OPNOTIFY MAXMSG CLEANUP RETRY CLASSLEN 370 200 1000 10 10 835 SSUM ACTION SSUM INTERVAL SSUM LIMIT WEIGHT MEMSTALLTIME ISOLATE 0 500 70 300 CFSTRHANGTIME 900 ... SYNC/ASYNC CONVERSION THRESHOLD -SOURCE- DEFAULT SIMPLEX 26 PARMLIB IN USE DUPLEX 30 PARMLIB 26 LOCK SIMPLEX 38 SETXCF IN USE LOCK DUPLEX 26 SYSTEM IN USE
  • 15. ©2013IBMCorporation CMG 2014 Sincrono x Assincrono - RMF STRUCTURE NAME = FNFLOCK TYPE = LOCK STATUS = ACTIVE # REQ -------------- REQUESTS ------------- -------------- DELAYED REQUESTS ------------- SYSTEM TOTAL # % OF -SERV TIME(MIC)- REASON # % OF ---- AVG TIME(MIC) ----- EXTERNAL REQUEST NAME AVG/SEC REQ ALL AVG STD_DEV REQ REQ /DEL STD_DEV /ALL CONTENTIONS ------------------------------------------------------------------------------------------------------------------------------ TOTAL 900M SYNC 5500K 100 5.0 5.0 NO SCH 250K 0.0 333.9 73.4 0.0 REQ TOTAL 43M 11349 ASYNC 0 0.0 85.0 11.2 PR WT 0 0.0 0.0 0.0 0.0 REQ DEFERRED 90K CHNGD 250K 0.0 PR CMP 0 0.0 0.0 0.0 0.0 -CONT 90K -FALSE CONT 39K 15 STRUCTURE NAME = FNFLOCK TYPE = LOCK STATUS = ACTIVE # REQ -------------- REQUESTS ------------- -------------- DELAYED REQUESTS ------------- SYSTEM TOTAL # % OF -SERV TIME(MIC)- REASON # % OF ---- AVG TIME(MIC) ----- EXTERNAL REQUEST NAME AVG/SEC REQ ALL AVG STD_DEV REQ REQ /DEL STD_DEV /ALL CONTENTIONS ------------------------------------------------------------------------------------------------------------------------------ TOTAL 900M SYNC 5500K 100 15.0 15.0 NO SCH 250K 0.0 333.9 73.4 0.0 REQ TOTAL 43M 11349 ASYNC 0 0.0 85.0 11.2 PR WT 0 0.0 0.0 0.0 0.0 REQ DEFERRED 90K CHNGD 250K 0.0 PR CMP 0 0.0 0.0 0.0 0.0 -CONT 90K -FALSE CONT 39K Overhead (rough) = (Num Req * # service time / Interval RMF) * MIPS GCP (individual)
  • 16. ©2013IBMCorporation CMG 2014 16 12x InfiniBand HCA2-O** HCA2-C I/O Drawer ISC-3 ISC-3 ISC-3 ISC-3 zEC12, zBC12, z196, z114, z10 EC, z10 BC IFB-MP zBC12 ISC-3** HCA2-O LR** Up to 150 meters Up to 10/100 km .... .... 1x InfiniBand Up to 10/100KM Fanouts HCA3-O* HCA3-O LR* .... .... 12x InfiniBand Up to 150 meters 1x InfiniBand Up to 10/100KM * Not supported on z10 **Carry forward only on zEC12/zBC12 zBC12/zEC12 Coupling Links Fanout, not I/O slot, used for InfiniBand ICB-4 – No longer supported ETR – No longer supported All coupling links support STP Sysplex Coexistence – zEC12, z196, z114, z10 EC and BC only zEC12
  • 17. ©2013IBMCorporation CMG 2014 Type Throughput Distance Fanout Cabling 12x InfiniBand 6 GBps 150 meters HCA2-O HCA3-O 50µ MM (OM3) fiber 1x InfiniBand 5 or 2.5 Gbps 10 km HCA2-O LR* HCA3-O LR 9µ SM fiber InfiniBand coupling links HCA3-O LR fanout for 1x InfiniBand coupling links CHPID type – CIB – Four ports per feature – Fiber optic cabling – Link sharing between multiple Sysplexes – Up to 10 km without repeaters, RPQ 8P2263 or 8P2340 is required for 20 km support – Up to 100 km are also possible using Dense Wavelength Division Multiplexors (DWDMs), going over 100 km requires RPQ 8P2263 or 8P2340 – Supports connectivity to HCA2-O LR – Link data rate server-to-server 5 Gbps – Link data rate with DWDM; 2.5 or 5 Gbps CHPID / Subchannel Options – 7 subchannels per CHPID (default) – Option to define 32 or 7 subchannels – Default changed from 32 to 7 for zEC12 HCA3-O fanout for 12x InfiniBand coupling links • CHPID type – CIB – Two ports per feature – Fiber optic cabling – 150 meters – Supports connectivity to HCA2-O – Link data rate of 6 GBps Two protocols (IFB & IFB3) 1. 12x IFB = HCA3-O to HCA2-O 2. 12x IFB3 = HCA3-O to HCA3-O (see below) • 12x IFB3 service times designed to be 40% faster than 12x IFB 12x IFB3 protocol activation requirements – Maximum of four CHPIDs per HCA3-O port • If more than four CHIPDs are defined per port, links will run at normal 12x IFB service times • IFB3 protocol activated as long as 4 CHPIDs or less are defined. No configuration settings required.
  • 18. ©2013IBMCorporation CMG 2014 Coupling Links Subchannel Best practice CFSU < 30% ( #Requests Sync x Service TimeSync) + (#Requests Sync x Service TimeSync) CFSU = -------------------------------------------------------------------------------------------------------------- #Subcanais CF 1 Sys A 12x InfiniBand 10µ CFSU = (0,1 * 10) / 7 14,3% 100k req/s CF 1 Sys A 10µ + 60µ (6 km) CFSU = (0,1 * 70) / 7 100% 100k req/s 1x InfiniBand CFSU = (0,1 * 70) / 32 21,9%
  • 19. ©2013IBMCorporation CMG 2014 Relatório RMF subcanais e PATH Busy 19 1 C O U P L I N G F A C I L I T Y A C T I V I T Y PAGE 41 z/OS V1R12 SYSPLEX SYSPLEXF START 08/03/2014-13.00.00 INTERVAL 001.00.00 RPT VERSION V1R12 RMF END 08/03/2014-14.00.00 CYCLE 05.000 SECONDS ------------------------------------------------------------------------------------------------------------------------------ COUPLING FACILITY NAME = CF01 ------------------------------------------------------------------------------------------------------------------------------ SUBCHANNEL ACTIVITY ------------------------------------------------------------------------------------------------------------------------------ # REQ ----------- REQUESTS ----------- ------------------ DELAYED REQUESTS -------------- SYSTEM TOTAL -- CF LINKS -- PTH # -SERVICE TIME(MIC)- # % OF ------ AVG TIME(MIC) ------ NAME AVG/SEC TYPE GEN USE BUSY REQ AVG STD_DEV REQ REQ /DEL STD_DEV /ALL MVSA 3247K CIB 8 8 310K SYNC 2689K 12.6 2.2 LIST/CACHE 0 0.0 0.0 0.0 0.0 963.7 SUBCH 56 56 ASYNC 527803 175.8 1463 LOCK 0 0.0 0.0 0.0 0.0 CHANGED 0 INCLUDED IN ASYNC TOTAL 0 0.0 UNSUCC 0 0.0 0.0 MVSY 160030K CIB 6 6 30M SYNC 138591K 15.4 4.4 LIST/CACHE 0 0.0 0.0 0.0 0.0 46442 SUBCH 42 32 ASYNC 6462K 38.2 90.0 LOCK 0 0.0 0.0 0.0 0.0 CHANGED 0 INCLUDED IN ASYNC TOTAL 0 0.0 UNSUCC 0 0.0 0.0 MVSW 8070K CIB 6 6 16M SYNC 5447K 11.6 2.4 LIST/CACHE 0 0.0 0.0 0.0 0.0 1848.6 SUBCH 42 12 ASYNC 1171K 78.0 1163 LOCK 0 0.0 0.0 0.0 0.0 CHANGED 0 INCLUDED IN ASYNC TOTAL 0 0.0 UNSUCC 0 0.0 0.0
  • 20. ©2013IBMCorporation CMG 2014 Coupling Links and zEC12 20
  • 21. ©2013IBMCorporation CMG 2014 CF overhead relationship to hardware configuration 21
  • 22. ©2013IBMCorporation CMG 2014 CF Duplexing – System Managed 22 CF 1 CF 2 Sys B Site A Site B Sys A 5k m 0k m
  • 23. ©2013IBMCorporation CMG 2014 CF Duplexing – User Managed 23 CF 1 CF 2 Sys B Site A Site B Sys A 5k m 0k m
  • 24. ©2013IBMCorporation CMG 2014 References • ITSO Redbooks http://www.redbooks.ibm.com/ – SG24-8047 zEnterprise End-to-End Extended Distance Connectivity Guide – SG24-7263 Considerations for Multisite Sysplex Data Sharing – SG24-7539 Implementing and Managing InfiniBand Coupling Links on System z – SG24-8049 zEC12 IBM zEnterprise EC12 Technical Guide – ITSO Workshops “Parallel Sysplex and High Availability” – Frank Kyne • 2009, 2010, 2011, 2012, 2013 • Other manuals – SA22-7625 MVS Setting Up a Sysplex 24 Atualizar referencias
  • 25. ©2013IBMCorporation CMG 2014 Questions ???? 25
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