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Mainframe Storage Replication Webtech Hitachi Data Systems

VIEWS: 27 PAGES: 37

  • pg 1
									MAINFRAME STORAGE
REPLICATION
JOE AMATO, HDS PRODUCT MANAGER FOR
REMOTE REPLICATION PRODUCTS

MARK DETRICK, BROCADE
GLOBAL SOLUTIONS ARCHITECT FOR RDR

SEPTEMBER 19, 2012
  WEBTECH EDUCATIONAL SERIES

Mainframe Storage Replication

In this session, learn how the Hitachi Virtual Storage Platform's mainframe
replication capabilities can address your business continuity and disaster recovery
requirements. Also, learn how Brocade switches and directors complement HDS
mainframe replication capabilities and add value to HDS solutions.

Specific Learning Objectives - By attending this webcast, you’ll learn:

1. Trends that are driving changes to business continuity requirements, and how
   HDS replication products such as Universal Replicator and Hyperswap
   integration capabilities with Business Continuity Manager are best positioned to
   address them.
2. Examples of how companies have implemented complete HDS solutions to
   solve their mainframe BC/DR needs.
3. The key features and functions of Brocade FCIP switches and
   fibrechannel/FICON director inter-datacenter connectivity that provide
   additional value to HDS replication solutions.
UPCOMING WEBTECHS

Mainframe Series

 Why Networked FICON Storage Is Better than Direct-attached
  Storage, Oct 3, 9 a.m. PT, 12 p.m. ET

Other

 Storage Analytics, Sept 20, 9 a.m. PT, 12 p.m. ET

 Maximize Availability and Uptime by Clustering your Physical
  Datacenters within Metro Distances, Oct 24, 9 a.m. PT, 12 p.m. ET

Check www.hds.com/webtech for
 Links to the recording, the presentation and Q&A (available next week)
 Schedule and registration for upcoming WebTech sessions
AGENDA


 Introduction
 HDS mainframe replication portfolio
 Key HDS solution highlights
 Customer case studies
 Brocade FCIP switches and key features for replication
 Summary and Q&A
KEY TREND:
SHRINKING RTO FOR TIER-1 APPLICATIONS

              Percent of ‘Enterprise’ companies (> 1000 employees)
                 with minimum RTO for most-critical applications




  Source: Enterprise Strategy Group, 2008 & 2010
BUSINESS CONTINUITY & DATA PROTECTION
ALIGNING RECOVERY OBJECTIVES AND ARCHITECTURES

 Recovery Objectives                                 Solution Architectures
                                    Primary Site                  Alternate Site              3rd Site
 Tier-1     RTO      RPO              Less Resiliency                      More Resiliency
            Zero     Zero                     Operational Resilience                            3DC
                                              Server/Storage Clusters w/
                                               Synchronous Replication                       Sync-Async

                               Operational Recovery             Disaster Recovery            Dual-Async

                                Local replication ‘crash     Remote replication clones w/ Multi-target
          Mins-to- Secs-to-                                      ‘crash consistent’
                                   consistent’ copies
            Hrs     Mins                                                                    Delta-
                                  (clones/snapshots)             clones/snapshots
                                                                                               Resync

                               Application aware copies        Application aware copies       Cascade

                                                                                             Data Center
                                   Backup/Restore                  Backup/Restore            Relocation
           Hrs-to-   Hrs-to-
            Days      Days
                                               Regulatory Compliance
 Tier-n
                                                    Replicated Archive
BUSINESS CONTINUITY – MAINFRAME PORTFOLIO


In-System Replication Remote Replication
    In-System Replication        Remote Replication                        Replication Management
                                                                                     Replication
SolutionsSolutions        Solutions Solutions                              Solutions
                                                                                 Management Solutions
Hitachi ShadowImage®                 Hitachi TrueCopy®                     Business Continuity Manager
Replication                          Synchronous, consistent clones at     Replication management in z/OS
                                     remote location up to 300km (~180     environments
For full-volume clones of business   miles)
data with consistency
(ATTIME split with HUR)
Hitachi Compatible Mirroring for     Hitachi Universal Replicator (HUR)    Hitachi Replication Manager with
IBM® FlashCopy®                      Any distance, unique use of “pull”    mainframe
                                     technology and journal volumes to     BCM plus “enterprise-wide” GUI replication
Point-in-time volumes and datasets   accommodate link outages or           management and monitoring for mainframe
via IBM command set in z/OS          interruptions                         and open systems
environment




Hitachi Compatible Software for      Hitachi Compatible Replication for    z/OS Basic HyperSwap, GDPS HyperSwap
IBM® FlashCopy® SE                   IBM® XRC®                             certification and/or integration
PiT volumes with virtual volume      Asynchronous remote replication via   High-availability storage for z/OS
pools versus whole volumes as        compatible with IBM XRC in z/OS       environments
targets                              environment


                   Replication assessment, migration and implementation services
                 Best-practice designs that ensure results and lower risks in implementation
                              Replication scorecard (health check) services
                          Periodic checkups that ensure continued solution value
TRUECOPY REMOTE REPLICATION (SYNCHRONOUS)




          (1) Host write                  (2) Synchronous remote copy
                                  PVOL                                        SVOL
        (4) Write complete                  (3) Remote copy complete

                                            Previously 2 Round-trips
                                               Now, 1 Round trip!




 •   Zero Data Loss possible with Fence-level = Data
 •   Performance: “dual-write” plus one (1) round-trip latency and a little “overhead”
 •   Up to 300 km supported – A couple of customers with up to ~ 140 km
 •   Consistency groups supported for open and mainframe
 •   Consistency groups supported across open and mainframe
 •   zOS support is PPRC command compatible
HITACHI UNIVERSAL REPLICATOR HIGHLIGHTS

 Hitachi Universal Replicator and Data Resilience
  ‒ Protects production performance during replication anomalies
  ‒ Protects Recovery Point Objective (RPO) with replication resilience
     during replication anomalies
  ‒ Leverages HDS virtualization for lower-cost BC/DR solutions
  ‒ Can enable reductions in bandwidth requirements

 Key Features
  ‒ Asynchronous replication of customer’s data
  ‒ Unique cache and disk based journaling
  ‒ Unique pull technology to move data to target storage system
  ‒ Multi-volume and multi-storage-system consistency groups
  ‒ Consistency across mainframe and open systems supported
  ‒ Thin (dynamic) provisioning awareness
  ‒ Advanced configuration support (e.g., 3DC, 4DC, delta-resync)
RPO ESTIMATE WITH LESS THAN PEAK BANDWIDTH
HUR RETURN TO NORMAL OPERATION:
DISK JOURNALS AVOID SUSPEND IMPACTS TO RPO


                Journal (HUR) vs. Cache (Bitmap) RPO Recovery

                                                                 Suspend,
                                                                increasing
                                                                   RPO




                                                                  Bitmap RPO




                                                            No suspend,
                                  Repaired
                         Outage




                                                          decreasing RPO

   * Modeled data only
THREE DATA CENTER REPLICATION SOLUTIONS

 3DC Cascade*
                                                VSP
                           TrueCopy                           JNL-VOL                            JNL-VOL     S-VOL
          P-VOL                                  S-VOL                          HUR
                             (Sync)              P-VOL
                                                                                                 JNL Group
             VSP                                        JNL Group                                                  VSP

             TrueCopy S-VOL shared as HUR P-VOL in intermediate site
  3DC Multi-Target
                                              TrueCopy (Sync)               JNL-VOL
                                                  or HUR*                                    S-VOL
                                                                               S-VOL
             VSP
                                                                             JNL Group
                                                                                     VSP            VSP
                                     JNL-VOL
                P-VOL
                                                                                                  Optional Delta
                                                                                                     Resync
                     Journal Group                          HUR
                                                                                          JNL-VOL
                                                                                                           S-VOL
                                                                                          JNL Group
                                                                                                             VSP

            Primary volume is shared P-VOL for two remote systems

 Mainframe supports up to 12x12x12 controller configurations (4x4x4 cascade)
         Requires Disaster Recovery Extended and BCM Extended
                     * 3DC with two HUR (async) links, without Delta-Resync, is currently supported on
                         VSP platforms only in both cascade and multi-target 1x1x1 configurations.
HUR INTEGRATION WITH HYPERSWAP
HIGH-AVAILABILITY WITH DISASTER RECOVERY


                        HyperSwap




         X           TrueCopy Duplex

                  BCM detects HyperSwap
                  via system messages and
                  drives automated change
         Delta          of HUR states
HUR
         Pairs
Duplex   Hold                       Delta Pairs
                                    Hold
                         HUR
                         Duplex
MAINFRAME REPLICATION MANAGEMENT
“REFRESHER”

 Hitachi - IBM Compatibility
  ‒ Hitachi storage has essential compatibility with IBM z/OS
  ‒ IBM replication management compatibility
     ‒ Hitachi storage controllers support PPRC, XRC and FlashCopy
       commands (assuming applicable software licensing) without additional
       HDS-provided software
     ‒ TrueCopy synchronous is compatible with PPRC
     ‒ For full-volumes, IBM commands operate on individual replication pairs
     ‒ But, IBM commands do not support Hitachi Universal Replicator

 Hitachi Business Continuity Manager (BCM) value-add
  ‒ Reduce complexity, simplify management
  ‒ Provide enhanced control and visibility
     ‒ (e.g., support configured and unconfigured devices)

  ‒ Reduce risk
BUSINESS CONTINUITY MANAGER™ HIGHLIGHTS

 Automatically discovers Hitachi storage systems and internal
  copy volumes

 Uses a single command to manage groups of copy volumes
  with common attributes

 Receives auto notification of key copy “state transitions”

 Supports advanced TrueCopy, ShadowImage and Universal
  Replicator features

 Real-time view of Universal Replicator

 Single, consistent interface based on Time Sharing Options
  (TSO) / Interactive System Productivity Facility (ISPF)

 Standard REXX scripting to customize and automate

 Optional Integration with Replication Manager for combined
  mainframe and open systems replication management
CUSTOMER CASE: INSURANCE COMPANY
(VIRTUALIZATION & REPLICATION FOR MAINFRAME AND OPEN SYSTEMS)


        Production Site                                        Recovery Site




              Customer originally implemented on USPV and is now moving to VSP!
                 Case study available on SHARE Proceedings - Anaheim 2011
CUSTOMER CASE: LARGE FINANCIAL INSTITUTION
(MULTI-CONTROLLER CONSISTENCY/HUR AND SHADOWIMAGE)



 PRODUCTION   PRODUCTION     PRODUCTION




    M                                     Fiber Channel connections between
                                                     control units
    I
    R
    R
    O
    R
    E
    D                                                 Dual OC-192
                                                                                                               Monitoring/Management


    D
    A
    T
    A



         Primary DASD                                                         Secondary DASD   Tertiary DASD




     Production Site                                                                               Recovery Site
                                               Converted from XRC!
                           Case study available on SHARE Proceedings – San Jose 2008
                                         Much larger configuration today!
Extraordinary Extension
Brocade




Brocade 7800 & FX - Brocade CONFIDENTIAL   March 2012   18
Next-Generation Extension Products

                                                                                                    Global 1000/
Solution price range (hardware and software)




                                                                                                   Large Enterprise


                                                                                                                      DCX 8510-8


                                               Brocade Network Advisor                             DCX 8510-4

                                                                                                                       FX base
                                                                         SMB/Enterprise
                                                                                                                       GE - 10 Gbps

                                                                                                                       FX 10GE license
                                                                         Brocade 7800 +                                10GE - 20 Gbps
                                                 Small/Medium              PoD license
                                                   Business
                                                                                                         FX8-24 blade for
                                                  7800 Base                                             Brocade DCX 8510
                                                                              Standalone           Director-Class
                                                          High-touch services, product flexibility, scalability

Brocade 7800 & FX - Brocade CONFIDENTIAL                                              March 2012                                      19
Remote Data Replication over IP Networks

Business Challenge                                                       Solution
• Create nonstop IT operations for business                              • Leverage secondary site for failover
  continuance                                                            • Deploy direct-connected FX8-24 Extension
• Application failover and data access                                     Blades over MLX IP network
                                                                         • Provide protected data, very small RPO
                                                                           and RTO
                      Mainframe                                                                                         Mainframe
                        and/or                                                                                            and/or
                         Open                                              FICON                                           Open
                       Systems                                                                                           Systems



                Primary                                                                                             Secondary
                Data Center                                                                                         Data Center


   Disk Array
                                                            FC                                                                      Disk Array
   with RDR                                               IP WAN
                                   Arrays replicate data between each other using FC                                                with RDR

                                                            MLXe                        MLXe
                                                         L2/L3 Switch                L2/L3 Switch
                                          Brocade DCX                                              Brocade DCX
                                     FX8-24 Extension Blades                                  FX8-24 Extension Blades

Brocade 7800 & FX - Brocade CONFIDENTIAL                                March 2012                                                    20
Brocade Extension Solutions
Features Introduced with 7800/FX
Accelerates and optimizes replication, backup, and migration over any
distance using advanced Fibre Channel and FCIP networking technology
• FCIP Trunking creates an ISL spanning multiple physical
  ports for load balancing and network failure resiliency
• ARL dynamically adjusts bandwidth limits to ensure efficient
  utilization and sharing of available bandwidth
• PP-TCP-QoS prioritizes handling of initiator-target flows within an   Brocade FX8-24 Extension
                                                                          Blade for the Brocade
  FCIP tunnel to optimize bandwidth and performance by application             DCX 8510
• Advanced Compression architecture provides flexibility to optimize
  compression ratios and maximize throughput
• 200 ms Round-Trip Time (RTT) of latency supports
  distances approaching 17,500 kilometers (nearly 11,000 miles)              Brocade 7800
                                                                            Channel Extender
• Brocade Network Advisor FCIP management unifies management of
  Fibre Channel and FCIP network infrastructures



Brocade 7800 & FX - Brocade CONFIDENTIAL     March 2012                                     21
Brocade FX8-24 Extension Blade
Blade Options
                                           • Brocade FX8-24 Extension Blade
                                             • Twelve 8G FC ports, ten GE interfaces
                                           • Functionality enabled through optional licenses
                                             • 10GE Interfaces
                Ten GE FCIP
                                               • Enables 10GE interfaces and doubles FCIP bandwidth to 20 Gbps
                interfaces
                                               • Supported 10GE interface configurations
                                                  •   Ten GE and one 10GE or
                Two 10GE FCIP                     •   Two 10GE
                interfaces
                                             • Advanced Extension: FCIP Trunking and ARL
                Twelve 8 Gbps                • Adaptive Networking: Activates FC and FCIP QoS functionality
                FC or FICON
                                             • Enterprise Bundle: Advanced Performance Monitoring, Adaptive
                ports
                                               Networking, Fabric Watch, Brocade Trunking, and Server Application
                                               Optimization (SAO)
                                             • Advanced Accelerator for FICON: Enables high-performance FICON tape,
                                               XRC, and Teradata over distance
                                             • FICON Management Server: Control Unit Port (CUP) enables host control
                                               of switches in mainframe environments



Brocade 7800 & FX - Brocade CONFIDENTIAL                         March 2012                                    22
Brocade 7800 Extension Switch
Platform Options




• Two models
      • Brocade 7800 4/2: Four 8G FC ports, two GE interfaces
      • Brocade 7800 16/6: Sixteen 8G FC ports, six GE interfaces

• Functionality enabled through optional licenses
      • Brocade 7800 16/6 Upgrade License: Enables all ports and OSTP
      • Advanced Extension: FCIP Trunking and ARL
      • Adaptive Networking: FC and FCIP QoS functionality
      • Enterprise Bundle: Advanced Performance Monitoring, Adaptive Networking, Fabric Watch, Brocade
        Trunking, and SAO
      • FICON Management Server: CUP enables host control of switches in mainframe environments
      • Advanced Accelerator for FICON: Enables high-performance FICON tape and replication over distance



Brocade 7800 & FX - Brocade CONFIDENTIAL              March 2012                                     23
Brocade Network Advisor




Brocade 7800 & FX - Brocade CONFIDENTIAL   March 2012   24
FCIP Trunking
Brocade exclusive feature
• Is an FCIP Tunnel with more than 1 circuit
• FCIP Trunking provides
    •   Single logical ISL in routing table as a single link, ULP see single link
    •   Bandwidth Aggregation of each circuit
    •   Load Balancing per batch across circuits
    •   Failover to remaining circuits
    •   Lossless Link Loss (LLL)
        • Data in-flight is not lost when a link goes down, will be retransmitted same as with TCP
    • In-Order-Delivery (IOD) Does not require IOD to be enabled
        • Data in-flight will be delivered in the correct order, even after data lost in-flight
• Works with both FICON and FC
    • Supports FastWrite, OSTP, and FICON emulation over multiple circuits
• FCIP Trunking is a proven technology
    • Leveraged from widely deployed McDATA/CNT technology
Brocade 7800 & FX - Brocade CONFIDENTIAL              March 2012                                  25
VE_Port to VE_Port (Dedicated Ethernet Ports)
 VE_Port  FCIP Trunk  IP Interface  Circuit  Ethernet Interface
                        Logical                        Physical                Physical               Logical
                      Source IP                        Ethernet                Ethernet           Destination IP
                      Interfaces                      Interfaces              Interfaces            Interfaces
                                           Circuits                                        Circuits
                                 Unique IP Address    GE0                           GE0



                                 Unique IP Address    GE1                           GE1

VE_Port 16                                                                                                     VE_Port 16
                                 Unique IP Address    GE2                           GE2
                                                                     WAN
                                                                   IP Cloud
          FCIP                   Unique IP Address    GE3                           GE3                         FCIP
         Trunk1                                                                                               Trunk 1
                                 Unique IP Address    GE4                           GE4



                                 Unique IP Address    GE5                           GE5



• FCIP Trunks (multiple circuits) or Tunnels (single circuit) are logical entities
• IP interfaces are logical entities
• Circuits and Ethernet interfaces are physical entities
Brocade 7800 & FX - Brocade CONFIDENTIAL                               March 2012                                  26
 FCIP Trunking Concept
 L3 Lossless Link Loss (LLL)


          FICON Emulation                      Supervisor TCP Session           FICON Data Received
                                                                                      Emulation
          FastWrite
          OSTP
                                             3
                                             1
                                                    X X X
                                             Circuit 1 with TCP session
                                                                                       FastWrite
                                                                                           OSTP
FCIP                                                                                            FCIP
Batches                                                                                         Batches
                                             4
                                             2
                                             3                                        3?
                                             Circuit 2 with TCP session


 Supervisor TCP Session
 • Encapsulates the circuits’ TCP sessions within a FCIP Trunk
 • Provides granular load-balancing
 • Retransmits lost frames due to circuit loss
     • For operational links, the TCP sessions within the circuit handle loss
 • Ensures FC frames are delivered in order (IOD)
      • Prevents IFCC on the mainframe
 • Supports FastWrite, OSTP, and FICON emulation
 • FCIP Trunk appears as a single logical ISL
  Brocade 7800 & FX - Brocade CONFIDENTIAL                         March 2012                    27
Adaptive Rate Limiting
High Availability Architecture
Normal Operation                                                                       Offline Path Operation
• Link BW  Number of Interfaces = BW of interface                                     • Link BW  Number of Remaining Interfaces = new
• Not oversubscribed or underutilized                                                    BW of interface
• Rate Limiting automatically changes with device or link failures                     • Not oversubscribed or underutilized
       •Optics, smashed cables, FW upgrades, configuration                             • Applies to the entire path from end device to end
        errors, defects…                                                                 device
                        Channel Extender A1                                                              Channel Extender B1

                                           ARL                                                           ARL
                                           Operating at ½
                                           Not Operating OC-12                                   Min ½ OC-12
                                                                                                   Max OC-12
     Site A     50%                                                                                                                Site B


                                                                                                         Channel Extender B2
                          Channel Extender
                                A2                                 IP Network OC-12
                50%
                100%                                                  Fully Utilized
                                           ARL
                                            ARL
                                           Operating at OC-12
                                            Operating at ½ OC-12                                         ARL
                                                                                                 Min ½ OC-12
                                                                                                   Max OC-12




                                                                   RDR Application
 ½ OC-12 = 311 Mbps

Brocade 7800 & FX - Brocade CONFIDENTIAL                                      March 2012                                                28
ARL
Optimization after a path failure
                                                                       When a second interface is enabled, the
                         With one interface online,                 network experiences a congestion event and the
                         all available bandwidth is                     first interface drops its rate down to the
                            consumed up to the                      minimum configured rate. From here it will seek
                               maximum rate                                          the ceiling again

9000000
8000000
7000000
6000000
5000000
4000000                                                                                       This interface ramps up to fully
3000000                                                                                       utilize the available WAN BW. It
                                                                                               stops seeking a ceiling at the
2000000
                                                                                                  maximum configured rate
1000000
          0
              0                50000          100000       150000           200000          250000         300000       350000

                                     The second interface starts                 Offline equipment/link
                                     off by claiming its minimum                 results in available BW
                                            configured rate
Brocade 7800 & FX - Brocade CONFIDENTIAL                            March 2012                                            29
PP-TCP-QoS
                                                        QOSH_<zone name>
                                                           High Priority

        7800/FX will
        map VCs into                                           FCIP Tunnel
        PP-TCP-QoS                                                             FCIP Circuit
                                                                  7800
                                                    FC ISL

                                            DCX                                               7800

                                                   Virtual                TCP Sessions
                                                  Channels


FC ASIC will put
  traffic into
  priority VC                                           QOSL_<zone name>
                                                           Low Priority



 Brocade 7800 & FX - Brocade CONFIDENTIAL                    March 2012                         30
IPsec

• There is no license for IPsec
• It is included in the base unit
• It adds only 5 µs of latency
• It operates at line rate
• All it costs is the effort to configure
    • Uses PSK (Pre-Shared Keys)




Brocade 7800 & FX - Brocade CONFIDENTIAL   March 2012   31
Typical Four-Brocade 7800 Solution
• Solution:
    •2 FCIP Trunks
    •1 FCIP Trunk per 7800
         • 2 circuits in each trunk
    •Array sees 2 parallel paths

                  7800 4/2                 MLX Core
                                                                                    MLX Core              7800 4/2
  FC path A                      GE FCIP
                                                                                               GE FCIP               FC path A

                                                            IP WAN Link



  FC path B                      GE FCIP                Service Provider
                                                      (Possibly carrier Ethernet)              GE FCIP               FC path B
                  7800 4/2                 MLX Core
                                                                                    MLX Core             7800 4/2


• ARL used on all 4 circuits
    •Max is link BW or interface line rate, whichever is smaller
    •In this example: Min = Max  4
Brocade 7800 & FX - Brocade CONFIDENTIAL                          March 2012                                          32
High-Availability Design
Multiple paths

• Four Brocade 7800/FX
• Two IP Networks
• Most RDR applications load-balance across multiple paths
• Most RDR applications will fail over to the remaining paths
• Supports FastWrite, OSTP, and FICON Emulation

                                                  FCIP   WAN A
                              Fabric 1A                                        Fabric 2A

                                           7800                         7800


                                                  FCIP
    Storage                   Fabric 1B                  WAN B                 Fabric 2B   Storage
     Local                                                                                 Remote
                                           7800                         7800




Brocade 7800 & FX - Brocade CONFIDENTIAL                   March 2012                          33
 SUMMARY

 Final thoughts
  ‒ HDS is rooted-in and committed-to strong IBM compatibility
  ‒ HDS has complete replication solution portfolio for mainframe storage
  ‒ HUR is mature product (2004) with over 250 worldwide mainframe replication
    customers; and is on third generation of hardware platform support
  ‒ HDS storage provides one platform for virtualization, dynamic (thin)
    provisioning, and tiered storage management
  ‒ Brocade provides value-add to HDS replication solutions
 Benefits:
  ‒ Deliver SLAs that are better aligned with business objectives
  ‒ Reduced risk via proven, enterprise-class data protection
  ‒ Cost savings through:
    ‒ Best of breed asynchronous replication
    ‒ Seamless tiered storage management
    ‒ Protection of existing investments with external virtualization
    ‒ Dynamic provisioning and tier-ing for mainframe
QUESTIONS AND
DISCUSSION
UPCOMING WEBTECHS

Mainframe Series

 Why Networked FICON Storage Is Better than Direct-attached
  Storage, Oct 3, 9 a.m. PT, 12 p.m. ET

Other

 Storage Analytics, Sept 20, 9 a.m. PT, 12 p.m. ET

 Maximize Availability and Uptime by Clustering your Physical
  Datacenters within Metro Distances, Oct 24, 9 a.m. PT, 12 p.m. ET

Check www.hds.com/webtech for
 Links to the recording, the presentation and Q&A (available next week)
 Schedule and registration for upcoming WebTech sessions
THANK YOU

								
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