© 2012 IBM Corporation IBM HyperSwap Options September 2012

IBM System Storage © 2012 IBM Corporation Agenda  Why HyperSwap ?  z/OS Basic HyperSwap  TPC-R 4.1 HyperSwap  GDPS/PPRC HyperSwap Manager  GDPS/PPRC HyperSwap  Positioning of Solutions

IBM System Storage © 2012 IBM Corporation Business impact of subsystem failure Source: IBM Market Intelligence

IBM System Storage © 2012 IBM Corporation Designed to Provide Continuous Availability of Data for System z Facilitated by new PPRC microcode functionality and z/OS ® IOS code HyperSwap ™ is: Integration of very fast swapping of PPRC’d disk subsystems with z/OS, System z hardware, and GDPS or TPC-R. Switching to alternate copy of System z data can be accomplished in seconds to minutes Supported on Synchronous PPRC Intended Benefits: Designed to offer continuous availability of data Disk Maintenance Site Maintenance Data Migration Disk Failure Site Failure Fast and Scalable System z Enterprise Data Center swap: scales to very large configurations Repeatable, reliable, confident recovery: No operator interaction, HyperSwap HyperSwap: Near Continuous Data Availability

IBM System Storage © 2012 IBM Corporation Hard Failure Triggers I/O errors Boxed devices Control Unit failures “Soft Failure” Trigger IOS Timing Trigger User defined I/O timing thresholds Examples of HyperSwap Triggers

© 2012 IBM Corporation IBM z/OS Basic HyperSwap

IBM System Storage © 2012 IBM Corporation application UCB Metro Mirror UCB Higher Availability for System z z/OS. Basic HyperSwap Ability to swap enterprise class System z Disk Subsystems in seconds. HyperSwap substitutes Metro Mirror secondary for primary device No operator interaction, TPC-R Basic Edition managed Designed to scale to multi-thousands of z/OS volumes Includes volumes with SYSRES, page data sets, catalogs Non-disruptive - applications keep using same device addresses HyperSwap integration with z/OS 1.9+ yielding Higher Availability for z/OS. IBM Disk Subsystem (ESS 800, DS6000 & DS8000) z/OS Volumes ONLY. Source & Target Subsystem(s) within Single Site PS

IBM System Storage © 2012 IBM Corporation HyperSwap – Before Swap Production Systems

IBM System Storage © 2012 IBM Corporation HyperSwap – After Swap Production Systems

IBM System Storage © 2012 IBM Corporation z/OS 1.9+ Basic HyperSwap Manager Benefits  Availability –Extends Parallel Sysplex Availability to disk subsystems within a Single Site.  System Management –Simplifies management of Remote Copy configuration, reducing storage management costs –Reduces time required for remote copy implementation  Effective entry level offering for customers that require high levels of availability –Initial Entry Point for TPC-R on z/OS. –Positioned to upgrade to other TPC-R Configurations. Parallel Sysplex designed to provide Near-Continuous Availability of systems, servers and applications within a single site (degree of availability depends on exploitation of Parallel Sysplex)

IBM System Storage © 2012 IBM Corporation TPC-R - Single point of control to manage the remote copy Configuration Fully integrated into z/OS 1.9+ Cannot HyperSwap zLinux, zVM or Open Systems Data; Systems data will be “frozen” to maintain data consistency if in same TPC-R Session. Unplanned HyperSwap Masks primary disk subsystem failures by transparently switching to use secondary disks Planned HyperSwap Provides ability to perform disk maintenance without requiring applications to be quiesced Enables data consistency in the event of failures or disaster FlashCopy support Can be initiated via TPC-R prior to resynchronization Status and planned actions Facilitates Primary/Secondary disk swaps for Planned Disk/Site Maintenance z/OS Basic HyperSwap Functional Overview

IBM System Storage © 2012 IBM Corporation Basic HyperSwap Prerequisites Hardware ESS 800, DS6000, and/or DS8000 with advanced copy function, Metro Mirror Host connectivity to both Metro Mirror primary & target devices. Same # Host to Storage Subsystem Paths to Primary & Target Devices. After Swap all Host Read & Write I/O sent to Recovered Target Devices. Software (Running on z/OS) z/OS Release “Basic HyperSwap” SPE or fully integrated into z/OS 1.10, TPC-R 4.1 Basic Edition “Basic Edition” entitled with z/OS v1.9 and beyond

IBM System Storage © 2012 IBM Corporation TPC Replication Manager TPC For Replication ESS DS6000 DS8000 SAN Volume Controller ESS DS6000 DS8000 SAN Volume Controller Primary/Source SiteSecond/Target Site Setup Copy Sessions Execute Copy Operations Monitor Copy Status Manage/Monitor Consistent Groups Alert Operations on Exceptions / Failures Automated copy services configuration Central operations for copy services Operational status on copy services operations Assistance with recovery on failures DS6000, DS8000, SVC support Global Mirror Support Replication Progression Monitoring High Availability Disaster Recovery Automation (failover, failback)

© 2012 IBM Corporation IBM TPC-R 4.1 HyperSwap

IBM System Storage © 2012 IBM Corporation application UCB Metro Mirro r UCB TPC-R 4.1 Full Function HyperSwap Ability to swap enterprise class System z Disk Subsystems in seconds. HyperSwap substitutes Metro Mirror secondary for primary device No operator interaction, TPC-R managed Designed to scale to multi-thousands of z/OS volumes Includes volumes with SYSRES, page data sets, catalogs Non-disruptive - applications keep using same device addresses HyperSwap integration with z/OS yielding Higher Availability for z/OS. IBM Disk Subsystem & OEM vendors supporting the PPRC Arch. zOS Volumes ONLY. Source & Target Subsystem(s) single or multi site. z/OS 1.9 and above Planned & Unplanned HyperSwap FO/FB. Integrated with TPC-R Managed MGM Configurations High Availability coupled with D/R Protection across 2-sites or 3-sites Physical Sites. PS

IBM System Storage © 2012 IBM Corporation HyperSwap – Before Swap Production Systems

IBM System Storage © 2012 IBM Corporation HyperSwap – After Swap Production Systems

IBM System Storage © 2012 IBM Corporation TPC-R - Single point of control to manage the remote copy Configuration Fully integrated into z/OS 1.9+ Cannot HyperSwap zLinux, zVM or Open Systems Data; Systems data will be “frozen” to maintain data consistency if in same TPC-R Session. Unplanned HyperSwap Masks primary disk subsystem failures by transparently switching to use secondary disks Planned HyperSwap Provides ability to perform disk maintenance without requiring applications to be quiesced Enables data consistency in the event of failures or disaster FlashCopy support Can be initiated via TPC-R prior to resynchronization Status and planned actions Facilitates Primary/Secondary disk swaps for Planned Disk/Site Maintenance TPC-R 4.1 HyperSwap Functional Overview

IBM System Storage © 2012 IBM Corporation TPC-R 4.1 HyperSwap Prerequisites Hardware ESS 800, DS6000, and/or DS8000 with advanced copy function, Metro Mirror Host connectivity to both Metro Mirror primary & target devices. Same # Host to Storage Subsystem Paths to Primary & Target Devices. After Swap all Host Read & Write I/O sent to Recovered Target Devices. Software (Running on z/OS) z/OS Release “HyperSwap” SPE, fully integrated into z/OS 1.10 TPC-R 4.1 Full Function

IBM System Storage © 2012 IBM Corporation TPC Replication Manager TPC For Replication ESS DS6000 DS8000 SAN Volume Controller ESS DS6000 DS8000 SAN Volume Controller Primary/Source SiteSecond/Target Site Setup Copy Sessions Execute Copy Operations Monitor Copy Status Manage/Monitor Consistent Groups Alert Operations on Exceptions / Failures Automated copy services configuration Central operations for copy services Operational status on copy services operations Assistance with recovery on failures DS6000, DS8000, SVC support Global Mirror Support Replication Progression Monitoring High Availability Disaster Recovery Automation (failover, failback)

© 2012 IBM Corporation IBM GDPS/PPRC HyperSwap Manager

IBM System Storage © 2012 IBM Corporation GDPS/PPRC HyperSwap Manager Availability Extends Parallel Sysplex availability to disk subsystems System Management Simplifies management of Remote Copy configuration, reducing storage management costs Reduces time required for Remote Copy implementation Combines the features of Remote Copy management with the automation of GDPS Effective entry level offering for customers that require high levels of availability Specially priced Tivoli NetView and System Automation products Positioned to upgrade to full GDPS

IBM System Storage © 2012 IBM Corporation GDPS/PPRC HyperSwap Manager Functional Overview Single point of control to manage the remote copy configuration Monitoring / Alerts System z and distributed data Distributed data “frozen” to maintain data consistency Planned / Unplanned HyperSwap Data consistency in the event of failures or disaster (Freeze) FlashCopy support Auto initiated by GDPS prior to resynchronization User initiated User interface through panels Status and planned actions Facilitates Primary/Secondary disk swaps for Planned Disk/Site Maintenance

© 2012 IBM Corporation IBM GDPS/PPRC HyperSwap Full Function

IBM System Storage © 2012 IBM Corporation GDPS/PPRC: a Continuous Availabilty and/or Disaster Recovery Solution - Metropolitan Distance Manages Multi-Site Parallel Sysplex, Processors, CBU, CF, Couple Data Sets Manages Disk RC (System z & open LUN) Manages Tape Remote Copy (PtPVTS) Exploits Hyperswap & FlashCopy Function Automated planned and unplanned actions (z/OS, CF, disk, tape, site) Improves availability of heterogeneous System z business operations Planned and unplanned exception conditions

IBM System Storage © 2012 IBM Corporation  Designed to Provide Continuous Availability of Data for System z Facilitated by new PPRC microcode functionality and z/OS ® IOS code  GDPS/PPRC HyperSwap ™ is: Integration of very fast swapping of PPRC’d disk subsystems with z/OS, System z hardware, and GDPS Switching to alternate copy of System z data can be accomplished in seconds to minutes Supported on Synchronous PPRC  Intended Benefits:  Designed to offer continuous availability of data −Disk Maintenance −Site Maintenance −Data Migration −Disk Failure −Site Failure Fast and Scalable System z Enterprise Data Center swap: scales to very large configurations Repeatable, reliable, confident recovery: No operator interaction, GDPS automation managed GDPS HyperSwap GDPS/PPRC HyperSwap: Near Continuous Data Availability

IBM System Storage © 2012 IBM Corporation GDPS HyperSwap Coexistence IMS/XRF Support (GDPS V3.3+) GDPS disables HyperSwap before IMS/XRF performs HW reserve When IMS releases Reserves, it tells GDPS to re-enable HyperSwap again TDMF Support (GDPS V3.4) GDPS disables HyperSwap prior to TDMF UCB switch and re-enables HyperSwap after switch Faster with potential for less human error

IBM System Storage © 2012 IBM Corporation ICF z/OS ICF z/OS ICF GDPS/PPRC – active / active (CF in 3 rd site) - HyperSwap Experience Bank Austria Creditanstalt GDPS ( 10-way PS, CICS/DB2, IMS/DB, VSAM/RLS) S P P Erste Bank GDPS (5-way PS, CICS/Natural, Adabas, DB2) S P S P P IBM HDS IBM HDS 1,200 Pairs (3390-9) 4,900 Pairs ( & ) 3,900 Pairs ( & ) Bank Austria Creditanstalt Erste Bank GDPS (3-way PS, TSM) GB SG LS 6 km 5 km4 km8 km 4 km n-way GDPS (MSW) Number PPRC Volumes Planned HS RESYNCH UIT Planned HS SUSPEND UIT Unplanned HyperSwap UIT 3-way1,200 pairs51 sec12 sec3 sec 5-way3,900 pairs20 sec12 sec7 sec 10-way4,900 pairs70 sec19 sec8 sec UIT = User Impact Time (seconds)MSW = Multi-Site Workload Business Requirements: No loss of committed data (RPO = 0) No more than five minutes disruption in the event of catastrophic systems or data center failure (RTO < 5 min) Supporting site maintenance without application outage Vienna, Austria site-1 site-2 Note: Red Parallel Sysplex not shown for clarity sake site-X

IBM System Storage © 2012 IBM Corporation IBM DS8000 GDPS/MzGM w/HyperSwap Incremental Resync  Two & Three Site Options: –Two Local Sites & 1 Remote -> Zero Data Loss if any one site fails (Local HA & D/R Combined with Out of region D/R protection.) –One Local Site w/two copies of the data and 1 remote site - GDPS PPRC HyperSwap can be on same data center floor. (Local HA & Out of region D/R protection.)  Enables High Availability GDPS HyperSwap and D/R Swap is automated, seamless and fast  Incremental resync Swaps zGM session volumes & reconnects to the remote volumes on a HyperSwap.  Reduces amount of data transmitted - only send changes from Metro Mirror Target to z/OS Global Mirror Target after HyperSwap. HyperSwap Incremental Resync z/OS Global Mirror Metro Mirror System Data Mover z/OS GM Target Metro Mirror Target Production A B C

IBM System Storage © 2012 IBM Corporation GDPS Metro/Global Mirror - Continuous availability and disaster recovery  Features –Provides HyperSwap capabilities, managed by GDPS/PPRC, between production and intermediate sites –Site three takeover managed by GDPS/Global Mirror –Bandwidth between intermediate and remote site is determined by RPO requirements –Automates z9, zSeries CBU activation and server recovery –Metro/Global Mirror technology enables a zSeries and open systems data solution  Intended Benefits: –Helps meet regulatory requirements for a 3-site availability and disaster recovery solution –Provides continuous availability in a 2 or 3 site zSeries environment, and a long distance disaster recovery solution for a zSeries/open systems environment –Scalable to meet changing business requirements –Data loss (RPO) measured in seconds to hours (user defined) –RTO at remote site of less than two hours for zSeries/four hours for open –Automates bring up at recovery site for zSeries server environment Production site Recovery site (Global Mirror) Primary site (PPRC primary) Synchronous PPRC Intermediate site (PPRC secondary/primary) Remote site (with 'safety copy') HyperSwap

IBM System Storage © 2012 IBM Corporation AB C Continuous Availability / Disaster Recovery Metropolitan Region Continuous Availability Regionally and Disaster Recovery Extended Distance Continuous Availability of Data within a Data Center Disaster Recovery at Extended Distance GDPS Solutions - The right level of protection for your business Near-continuous availability to data Single Data Center Applications remain active GDPS ® /PPRC HyperSwap Manager Automated D/R across site or storage failure No data loss Two Data Centers Systems remain active GDPS/ PPRC HyperSwap Manager GDPS/PPRC w/HyperSwap Automated Disaster Recovery “seconds” of Data Loss Two Data Centers GDPS/GM GDPS/XRC Data availability No data loss Extended distances Three Data Centers GDPS/MGM GDPS/MzGM

IBM System Storage © 2012 IBM Corporation HyperSwap Positioning Basic HyperSwap (GA 2008) Single site continuous availability function Unplanned failures Planned fail over (testing) Aimed at masking disk failures IBM Disk Subsystems ONLY (ESS 800, DS6000, DS8000) Hitachi disk subsystems TPC-R HyperSwap (GA 2009) Single site or Multiple Sites (2-site or 3-site) Continuous availability and/or DR solution Supports TPC-R managed MGM Configurations w/HyperSwap IBM disk subsystem that supports the IBM PPRC Architecture GDPS/PPRC HyperSwap Manager (GA 2006) Single site or multiple sites Continuous availability and/or Entry level DR solution IAny vendors disk subsystem that supports the IBM PPRC Architecture GDPS/PPRC w/HyperSwap (GA 2002) Full function HyperSwap across multiple Sites for D/R and High Availability. Includes Server, Workload & Network Management across sites in addition to Storage Supports GDPS/MzGM (GDPS/XRC + GDPS/PPRC HyperSwap) and GDPS/MGM (GDPS/PPRC w/HyperSwap + GDPS/GM) environments. Any vendors disk subsystem that supports the IBM PPRC Architecture. (ex. IBM, EMC, Hitachi (HP))

IBM System Storage © 2012 IBM Corporation IBM HyperSwap Option Summary [1/2] FeaturesGDPS HyperSwap TPC-R 4.1 w/HyperSwap TPC-R 4.1 Basic Edition with HS Synchronous Mirroring onlyYes Provides fast swapping of UCBs  Transparent to application Yes # Sites SupportedSingle Site, 2-Site & 3-SiteSingle Site, 2-site or 3-SiteSingle Site Only Code hardened to avoid hangs  Page faults  Locks Yes Failure management provided byGDPSz/OS CostService OfferingFull TPC-R w/HyperSwap Chargeable Free TPC-R w/HyperSwap (Basic HS part of z/OS) Platforms Supportedz/OS, zVM & zLinuxz/OS Storage SupportedIBM, EMC, HDS (HP) (in PPRC mode) IBMIBM & HDS (HP) First SupportedGDPS/PPRC HyperSwap April 2002, HyperSwap Manager 2/15/05. Uses z/OS HyperSwap API 2009 Uses z/OS HyperSwap API 2008 Uses z/OS HyperSwap API Software RequiredSystem Automation NetView – HyperSwap Manager has special use Netview & SA at special package price. None

IBM System Storage © 2012 IBM Corporation IBM HyperSwap Option Summary [2/2] FeaturesGDPS HyperSwap TPC-R HyperSwap Basic HyperSwap Requires K-systemYesNo, TPC-R Addr Space Supports XCF Couple DatasetYes- GDPS/PPRC No, GDPS/HS MGR. No Supports HyperSwap with zGM (MzGM)YesNo Supports HyperSwap Global Mirror (MGM)Yes No HyperSwap Options (Resync, Suspend FO/FB, Data Migration) Yes, Yes, YesNo, Yes, Yes Supports protection against IPL against wrong set of disks Yes – GDPS/PPRC No GDPS/HS Mgr No Supports Planned & Unplanned FO/FBYes Requires Full TPC-R for site switch, otherwise TPC-R Basic Edition. Supports TDMF CompatibilityYes zOS Support LevelszOS 1.7+z/OS 1.9+zOS 1.9+ Supports FlashCopy before ResyncYes No Supports a “Data Freeze”Yes Yes for HS triggers, No for mirroring failures on a Basic HyperSwap Session. Target Volumes not consistent in this case.

IBM System Storage © 2012 IBM Corporation Notes 1.For data freeze, TPC-R two-site (licensed version) now supports both HyperSwap for primary disk subsystem failures. 2.GDPS/PPRC HyperSwap Manager - FlashCopy before Resynch In GDPS, a freeze creates a consistent set of secondary volumes. However, if a resynch is started, the secondary volumes will contain inconsistent data until the resynch is complete. As a result, during this window, they cannot be used for recovery purposes should there be a failure in the primary site. To keep a set of consistent volumes until the resynch is completed, the GDPS function known as FlashCopy before Resynch is used. Before resynchronization starts, a FlashCopy is taken of all suspended secondary volumes that have a FlashCopy device defined in the configuration file (GEOPARM). After the FlashCopy commands are completed, the resynch commands are executed. As soon as the mirroring status is “OK” after the resynch, the FlashCopy flag will be removed in the next DASD query, and the FCWITHDRAW command will be executed to remove the relationship between the source and target volumes.

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