IBM Hyper Swap Options bobkern us ibm com September

IBM System Storage Agenda Ø Why Hyper. Swap ? Ø z/OS Basic Hyper. Swap Ø TPC-R 4. 1 Hyper. Swap Ø GDPS/PPRC Hyper. Swap Manager Ø GDPS/PPRC Hyper. Swap Ø Positioning of Solutions © 2012 IBM Corporation

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

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

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

IBM z/OS Basic Hyper. Swap © 2012 IBM Corporation

IBM System Storage Basic Hyper. Swap üAbility to swap enterprise class System z Disk Subsystems in seconds. üHyper. Swap substitutes Metro Mirror secondary for primary device application üNo operator interaction, TPC-R Basic Edition managed üDesigned to scale to multi-thousands of z/OS volumes UCB üIncludes volumes with SYSRES, page data sets, catalogs üNon-disruptive - applications keep using same device addresses P Metro Mirror S üHyper. Swap integration with z/OS 1. 9+ yielding Higher Availability for z/OS. üIBM Disk Subsystem (ESS 800, DS 6000 & DS 8000) üz/OS Volumes ONLY. üSource & Target Subsystem(s) within Single Site Higher Availability for System z z/OS. © 2012 IBM Corporation

IBM System Storage Hyper. Swap – Before Swap Production Systems © 2012 IBM Corporation

IBM System Storage Hyper. Swap – After Swap Production Systems © 2012 IBM Corporation

IBM System Storage z/OS 1. 9+ Basic Hyper. Swap 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) © 2012 IBM Corporation

IBM System Storage z/OS Basic Hyper. Swap Functional Overview üTPC-R - Single point of control to manage the remote copy Configuration üFully integrated into z/OS 1. 9+ üCannot Hyper. Swap z. Linux, z. VM or Open Systems Data; üSystems data will be “frozen” to maintain data consistency if in same TPC-R Session. üUnplanned Hyper. Swap üMasks primary disk subsystem failures by transparently switching to use secondary disks üPlanned Hyper. Swap üProvides ability to perform disk maintenance without requiring applications to be quiesced üEnables data consistency in the event of failures or disaster üFlash. Copy support üCan be initiated via TPC-R prior to resynchronization üStatus and planned actions üFacilitates Primary/Secondary disk swaps for Planned Disk/Site Maintenance © 2012 IBM Corporation

IBM System Storage Basic Hyper. Swap Prerequisites ü Hardware ü ESS 800, DS 6000, and/or DS 8000 ü with advanced copy function, Metro Mirror ü Host connectivity to both Metro Mirror primary & target devices. ü Same # Host to Storage Subsystem Paths to Primary & Target Devices. After Swap all Host Read & Write I/O sent to Recovered Target Devices. ü Software (Running on z/OS) ü z/OS Release 1. 9 + “Basic Hyper. Swap” SPE or fully integrated into z/OS 1. 10, ü TPC-R 4. 1 Basic Edition ü “Basic Edition” entitled with z/OS v 1. 9 and beyond © 2012 IBM Corporation

IBM System Storage TPC Replication Manager • • • Setup Copy Sessions Execute Copy Operations Monitor Copy Status Manage/Monitor Consistent Groups Alert Operations on Exceptions / Failures TPC For Replication Primary/Source Site DS 8000 DS 6000 ESS SAN Volume Controller • • DS 6000, DS 8000, SVC support • Global Mirror Support • Replication Progression Monitoring • High Availability • Disaster Recovery Automation (failover, failback) Second/Target Site DS 8000 DS 6000 ESS SAN Volume Controller Automated copy services configuration Central operations for copy services Operational status on copy services operations Assistance with recovery on failures © 2012 IBM Corporation

IBM TPC-R 4. 1 Hyper. Swap © 2012 IBM Corporation

IBM System Storage TPC-R 4. 1 Full Function Hyper. Swap üAbility to swap enterprise class System z Disk Subsystems in seconds. ü Hyper. Swap substitutes Metro Mirror secondary for primary device ü No operator interaction, TPC-R managed application UCB ü Designed to scale to multi-thousands of z/OS volumes ü Includes volumes with SYSRES, page data sets, catalogs ü Non-disruptive - applications keep using same device addresses ü Hyper. Swap integration with z/OS yielding Higher Availability for z/OS. ü IBM Disk Subsystem & OEM vendors supporting the PPRC Arch. ü z. OS Volumes ONLY. P Metro Mirror ü Source & Target Subsystem(s) single or multi site. S ü z/OS 1. 9 and above ü Planned & Unplanned Hyper. Swap FO/FB. ü Integrated with TPC-R Managed MGM Configurations ü High Availability coupled with D/R Protection across 2 -sites or 3 -sites Physical Sites. © 2012 IBM Corporation

IBM System Storage TPC-R 4. 1 Hyper. Swap Functional Overview üTPC-R - Single point of control to manage the remote copy Configuration üFully integrated into z/OS 1. 9+ üCannot Hyper. Swap z. Linux, z. VM or Open Systems Data; üSystems data will be “frozen” to maintain data consistency if in same TPC-R Session. üUnplanned Hyper. Swap üMasks primary disk subsystem failures by transparently switching to use secondary disks üPlanned Hyper. Swap üProvides ability to perform disk maintenance without requiring applications to be quiesced üEnables data consistency in the event of failures or disaster üFlash. Copy support üCan be initiated via TPC-R prior to resynchronization üStatus and planned actions üFacilitates Primary/Secondary disk swaps for Planned Disk/Site Maintenance © 2012 IBM Corporation

IBM System Storage TPC-R 4. 1 Hyper. Swap Prerequisites ü Hardware ü ESS 800, DS 6000, and/or DS 8000 ü with advanced copy function, Metro Mirror ü Host connectivity to both Metro Mirror primary & target devices. ü Same # Host to Storage Subsystem Paths to Primary & Target Devices. After Swap all Host Read & Write I/O sent to Recovered Target Devices. ü Software (Running on z/OS) ü z/OS Release 1. 9 + “Hyper. Swap” SPE, fully integrated into z/OS 1. 10 ü TPC-R 4. 1 Full Function © 2012 IBM Corporation

IBM System Storage TPC Replication Manager • • • Setup Copy Sessions Execute Copy Operations Monitor Copy Status Manage/Monitor Consistent Groups Alert Operations on Exceptions / Failures TPC For Replication Primary/Source Site DS 8000 DS 6000 ESS SAN Volume Controller • • DS 6000, DS 8000, SVC support • Global Mirror Support • Replication Progression Monitoring • High Availability • Disaster Recovery Automation (failover, failback) Second/Target Site DS 8000 DS 6000 ESS SAN Volume Controller Automated copy services configuration Central operations for copy services Operational status on copy services operations Assistance with recovery on failures © 2012 IBM Corporation

IBM GDPS/PPRC Hyper. Swap Manager © 2012 IBM Corporation

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

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

IBM GDPS/PPRC Hyper. Swap Full Function © 2012 IBM Corporation

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

IBM System Storage GDPS/PPRC Hyper. Swap: Near Continuous Data Availability § Designed to Provide Continuous Availability of Data for System z • Facilitated by new PPRC microcode functionality and z/OS® IOS code application § GDPS/PPRC Hyper. Swap™ is: UCB PPRC P S GDPS Hyper. Swap • 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 © 2012 IBM Corporation

IBM System Storage GDPS/PPRC – active / active (CF in 3 rd site) - Hyper. Swap Experience Vienna, Austria Erste Bank GDPS Bank Austria Creditanstalt GDPS (5 -way PS, CICS/Natural, Adabas, DB 2) (10 -way PS, CICS/DB 2, IMS/DB, VSAM/RLS) z/OS ICF 6 km GB Business Requirements: IBM No more than five minutes disruption in the event of catastrophic systems or data center failure (RTO < 5 min) P 8 km SG 5 km HDS IBM 4 km site-1 3, 900 Pairs (3390 -3 & 3390 -9) S Planned HS Unplanned Number PPRC RESYNCH SUSPEND Hyper. Swap Volumes UIT UIT 1, 200 pairs 51 sec 12 sec 3 sec 5 -way 3, 900 pairs 20 sec 12 sec 4, 900 pairs 70 sec 19 sec ICF HDS (3390 -9) S z/OS S site-2 Bank Austria Creditanstalt Erste Bank GDPS (3 -way PS, TSM) Note: Red Parallel Sysplex not shown for clarity sake 7 sec 10 -way z/OS P P 1, 200 Pairs LS 3 -way P P 4, 900 Pairs (3390 -3 & 3390 -9) Supporting site maintenance without application outage GDPS (MSW) z/OS site-X No loss of committed data (RPO = 0) n-way ICF 4 km 8 sec MSW = Multi-Site Workload UIT = User Impact Time (seconds) © 2012 IBM Corporation

IBM System Storage IBM DS 8000 GDPS/Mz. GM w/Hyper. Swap Incremental Resync System Data Mover A Hyper. Swap z/OS Global Mirror C Production Incremental Resync z/OS GM Target Metro Mirror B § Metro Mirror Target 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 Hyper. Swap can be on same data center floor. (Local HA & Out of region D/R protection. ) § Enables High Availability GDPS Hyper. Swap and D/R Swap is automated, seamless and fast § Incremental resync Swaps z. GM session volumes & reconnects to the remote volumes on a Hyper. Swap. § Reduces amount of data transmitted - only send changes from Metro Mirror Target to z/OS Global Mirror Target after Hyper. Swap. © 2012 IBM Corporation

IBM System Storage GDPS Metro/Global Mirror - Continuous availability and disaster recovery Recovery site Production site Synchronous PPRC (Global Mirror) Hyper. Swap Primary site (PPRC primary) Intermediate site (PPRC secondary/primary) § Features – Provides Hyper. Swap 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 § Intended Benefits: Remote site (with 'safety copy') – Helps meet regulatory requirements for a 3 -site availability and disaster recovery solution – Provides continuous availability in a 2 or 3 site z. Series environment, and a long distance disaster recovery solution for a z. Series/open systems environment – Scalable to meet changing business requirements – Automates z 9, z. Series CBU activation and server recovery – Data loss (RPO) measured in seconds to hours (user defined) – Metro/Global Mirror technology enables a z. Series and open systems data solution – RTO at remote site of less than two hours for z. Series/four hours for open – Automates bring up at recovery site for z. Series server environment © 2012 IBM Corporation

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

IBM System Storage Hyper. Swap Positioning üBasic Hyper. Swap (GA 2008) ü Single site continuous availability function ü Unplanned failures ü Planned fail over (testing) ü Aimed at masking disk failures ü IBM Disk Subsystems ONLY (ESS 800, DS 6000, DS 8000) ü Hitachi disk subsystems üTPC-R 4. 1. 1 Hyper. Swap (GA 2009) ü Single site or Multiple Sites (2 -site or 3 -site) ü Continuous availability and/or DR solution ü Supports TPC-R managed MGM Configurations w/Hyper. Swap ü IBM disk subsystem that supports the IBM PPRC Architecture üGDPS/PPRC Hyper. Swap Manager (GA 2006) ü Single site or multiple sites ü Continuous availability and/or Entry level DR solution ü IAny vendors disk subsystem that supports the IBM PPRC Architecture üGDPS/PPRC w/Hyper. Swap (GA 2002) ü Full function Hyper. Swap across multiple Sites for D/R and High Availability. ü Includes Server, Workload & Network Management across sites in addition to Storage ü Supports GDPS/Mz. GM (GDPS/XRC + GDPS/PPRC Hyper. Swap) and GDPS/MGM (GDPS/PPRC w/Hyper. Swap + GDPS/GM) environments. ü Any vendors disk subsystem that supports the IBM PPRC Architecture. (ex. IBM, EMC, Hitachi (HP)) © 2012 IBM Corporation

IBM System Storage IBM Hyper. Swap Option Summary [1/2] Features GDPS Hyper. Swap TPC-R 4. 1 w/Hyper. Swap TPC-R 4. 1 Basic Edition with HS Synchronous Mirroring only Yes Yes Provides fast swapping of UCBs §Transparent to application Yes Yes Single Site, 2 -Site & 3 -Site Single Site, 2 -site or 3 -Site Single Site Only Yes Yes GDPS z/OS Service Offering Full TPC-R w/Hyper. Swap Chargeable Free TPC-R w/Hyper. Swap (Basic HS part of z/OS) Platforms Supported z/OS, z. VM & z. Linux z/OS Storage Supported IBM, EMC, HDS (HP) (in PPRC mode) IBM & HDS (HP) GDPS/PPRC Hyper. Swap April 2002, Hyper. Swap Manager 2/15/05. Uses z/OS Hyper. Swap API 2009 Uses z/OS Hyper. Swap API 2008 Uses z/OS Hyper. Swap API System Automation Net. View – Hyper. Swap Manager has special use Netview & SA at special package price. None # Sites Supported Code hardened to avoid hangs §Page faults §Locks Failure management provided by Cost First Supported Software Required © 2012 IBM Corporation

IBM System Storage IBM Hyper. Swap Option Summary [2/2] Features GDPS Hyper. Swap TPC-R 4. 1. 1 Hyper. Swap Basic Hyper. Swap Yes No, TPC-R Addr Space Yes- GDPS/PPRC No, GDPS/HS MGR. No No Supports Hyper. Swap with z. GM (Mz. GM) Yes No No Supports Hyper. Swap Global Mirror (MGM) Yes No Hyper. Swap Options (Resync, Suspend FO/FB, Data Migration) Yes, Yes No, Yes, Yes Supports protection against IPL against wrong set of disks Yes – GDPS/PPRC No GDPS/HS Mgr No No Supports Planned & Unplanned FO/FB Yes Requires Full TPC-R for site switch, otherwise TPC-R Basic Edition. Supports TDMF Compatibility Yes Yes z. OS 1. 7+ z/OS 1. 9+ z. OS 1. 9+ Supports Flash. Copy before Resync Yes No Supports a “Data Freeze” Yes Yes for HS triggers, No for mirroring failures on a Basic Hyper. Swap Session. Target Volumes not consistent in this case. Requires K-system Supports XCF Couple Dataset z. OS Support Levels © 2012 IBM Corporation

IBM System Storage Notes 1. For data freeze, TPC-R two-site (licensed version) now supports both Hyper. Swap for primary disk subsystem failures. 2. GDPS/PPRC Hyper. Swap Manager - Flash. Copy 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 Flash. Copy before Resynch is used. Before resynchronization starts, a Flash. Copy is taken of all suspended secondary volumes that have a Flash. Copy device defined in the configuration file (GEOPARM). After the Flash. Copy commands are completed, the resynch commands are executed. As soon as the mirroring status is “OK” after the resynch, the Flash. Copy 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. © 2012 IBM Corporation

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