PowerHA SystemMirror for IBM i

© 2013 IBM Corporation
PowerHA SystemMirror for IBM i
Resiliency Without Downtime
finnes@us.ibm.com

IBM Power Systems
PowerHA SystemMirror
Power Systems High Availability Solution for AIX and IBM i
For mission critical application availability
through planned and unplanned outage events
Shared Storage Clustering Technology designed for automation
and minimal IT operations. Integrates storage server technology for a
complete HA/DR solution.
Embedded technology for simplicity and reliability

IBM Power Systems
PowerHA Clustering Solutions for High Availability
 High Availability (HA) Management
– Clustering for mission critical application availability
– Planned and unplanned outage management
– Storage based data resiliency
 Disaster Recovery (DR) Management
– Multi-Site clustering
– Integrated storage based replication
– Automated compliance testing Data Center Clustering
Multi-Site Clustering
External LAN
LAN 1 LAN 2
SAN 1
SAN 2
Heartbeat 1
Heartbeat 2
Logical server
External LAN
LAN 1 LAN 2
SAN 1
SAN 2
Heartbeat 1
Heartbeat 2
Logical server
External LAN
LAN 1 LAN 2
SAN 1
SAN 2
Heartbeat 1
Heartbeat 2
Logical server

IBM Power Systems
Client Need: Data Center
 Requirements
– Near continuous application service
– Automated operations (minimize operational expense)
– Recovery Time Objective (RTO) measured in minutes
– Recovery Point Objective (RPO) is Zero (no data loss)
– Eliminate affects of planned outages
– Eliminate tape back-up window
 Solution Strategy:
– PowerHA SystemMirror Standard Edition

IBM Power Systems
 Requirements
– HA/DR for both data center & multi-site operations
– Automated role-swap operations
– Readily demonstrate remote recoverability compliance
 Solution Strategy:
– Unified clustering solution for data center
& multi-site resiliency
– PowerHA SystemMirror
Enterprise Edition
Client Need Today: Multi-Site
Data Center
Remote Site

IBM Power Systems
PowerHA Basic Concepts
 PowerHA SystemMirror creates and manages
a shared storage cluster topology
– IASP volume group hosts the DB,
IFS data
– Admin Domain manages the
sysbas data
– Note that the foundational topology
does not involve replication

IBM Power Systems
PowerHA Basic Concepts - Geomirror
 Internal disk is not switchable (LUNs required), you use
geomirror with internal disk configurations (or for that
matter any disk configurations)
 Use Geomirror for configs with IASPs under 5 Tbytes
(a suggested guideline … key point is proper sizing for
bandwidth when considering a complete re-sync after
an outage)
– Sync mode included with Standard Edition
(~ 40 KM or less)
– Async mode requires Enterprise Edition
– Storage agnostic (typically internal disk)
Admin domain
Geomirror

IBM Power Systems
PowerHA Switchable LUN Cluster

IBM Power Systems
PowerHA Business Value & Objectives
 Provide IBM i Clients With Confidence & Certainly of Outcome
– PowerHA eliminates the logical replication dilemma:
• Have we identified all of the objects that need to be replicated ?
• Are all of those objects in sync ?
• Should we or should we not failover ?
 Enable best of breed performance and HA/DR metrics
– Provide HA/DR and application performance
– Automate HA/DR operations
– Exploit and integrate modern storage technology
– Eliminate single points of failure
– Enable RPO of 0 and best case RTO
 Address ROI Acquisition and Cost of Ownership
– PowerHA is priced per processor core
– CBU reduces total number of licenses required
– FlashCopy (save window elimination)
– Minimize operational expense through automation
 Provide Native Embedded Technology for HA/DR Solutions
– PowerHA technology is an integrated extension of SLIC and iOS

IBM Power Systems
Operational Simplicity – Actual Customer Scenario
 Example Scenario: Vary-on times dependent on database characteristics
 PowerHA cluster conducts operations, IT personal role is primarily monitoring
 Advance copy services with PowerHA minimizes storage/cluster management
Step Time (mins) Headcount Person mins PowerHA/DS8k/Metro Mirror Steps
1 0 0 0 Target replication Vg (IASP) is in sync
2 10 1 10 Quiesce app, vary off primary Vg
3 5 0 0 Fall-over & reverse replication from DR
site to primary site
4 5 0 0 Vary on application Vg, IP take over
0 0 0 0 Check job logs (no longer necessary)
6 10 1 10 Start application environment and
validate everything is up and running
7 0 0 0 Start production
Elapsed Time 30 mins 1 20 (fail back => go to step 1)

IBM Power Systems
Operational Expense Analysis (OPEX) Example
 DR compliance test: rollover/rollback to/from remote location
– Two Scenarios for comparison
1. IBM Configuration: Two 770’s, Two DS8800s, Metro Mirror
2. ISV Configuration: Two 770’s, Two DS8800s, Logical Replication
 Simple environment
– One partition failover
– Minimal apply lag on target box (for the benefit of the logical replication test)
– Production did not remain on target box (for the benefit of the logical replication test)
 OPEX comparison *
– Logical replication scenario, 6 person hours of effort (4 hours elapsed time)
– PowerHA scenario, .3 person hours of effort (.5 hour elapsed time)
 PowerHA
– Requires minimal monitoring
– No out of sync conditions for IASP data
– No apply process lag on target
– Failover processing is automated
* Operational complexity varies widely with logical replication deployments. Lag apply
processing, sync checking, and multiple lpars increase complexity and time.

IBM Power Systems
PowerHA MetroMirror Cluster

IBM Power Systems
LUN or
volume
LUN or
volume3
Write complete
acknowledgment
2
4
1
Primary
(source)
Secondary
(target)
Write acknowledge
Server
write
Write to secondary
Metro Mirror Write Sequence

IBM Power Systems
Integrated and Automated Tape Backups
 Save window elimination
 Fully automated flash copy to BRMS to tape

IBM Power Systems

IBM Power Systems
PowerHA Global Mirror Write Sequence
LUN or
volume
LUN or
volumeD
C
B
A
Primary
(source)
Secondary
(target)
Write acknowledge
Server
write
Write to secondary
(non-synchronously)

IBM Power Systems
©
MetroMirror
Production
DS8000
V7000
V3700
LUN Group
(active)
HA
DR Site
*SYSBAS (Prod)
IASP
(Switchable)
DS8000
V7000
*SYSBAS (DR)
IASP
*SYBAS (Backup I)
IASP
DR
Flash
Backup
F
l
a
s
h
C
o
p
y
POWER7
IBM i
POWER7
IBM i
POWER7
IBM i
*SYBAS (Backup I)
Global Mirror
Local Site DR Site
PowerHA Enterprise Edition Three Node Cluster

IBM Power Systems
(MGM) Metro Mirror Global Mirror Three Site Cluster

IBM Power Systems
PowerHA SystemMirror IBM i Editions
PowerHA SystemMirror for i Standard Edition Enterprise Edition
Offering Focus Data Center HA (per core) Multi Site HA/DR (per core)
Small Tier
Blade & Entry Power
Scale
$2,500 $3,250
Medium Tier
Mid-range Power
$3,500 $5,000
Large Tier
Enterprise Servers
$4,500 $6,500
 Standard Edition PID 5770-HAS
 Enterprise Edition is a feature of 5770-HAS and is the multi site solution
 No charge upgrades from PowerHA 6.1 to 7.1 Standard Edition or Enterprise
Edition
 HASR (opt 41) is included with purchase of PowerHA SystemMirror 7.1
 Sub capacity pricing, license only the cores in the partitions covered by PowerHA
 HA Assist 5733 HAA available optionally for 5K usd per system – for software
replication as needed
US list prices, prices vary by geo

IBM Power Systems
PowerHA IBM i Capacity Back Up (CBU) Licensing Example
Active standby
CBU Cores
IBM i, 5250, PowerHA
Partition #1
Unused
Partition #2
Partition #3
Production CBU
Active standby
CBU Cores
Planning
 CBU allows PowerHA licenses entitlement
fail-over from the registered production server
– Minimum 1 entitlement required on the CBU
box*
– CBU server allows the temporary transfer of
entitlements from primary server for non
concurrent usage on the CBU server
– Round-up when using partial processors
– 3.5 processors = 4 entitlements
Example
 No HA/DR required for Partition 1
– No PowerHA licenses
 HA required for Partition 2 and 3
– All processors in the production server
partitions 2 and 3 are licensed for PowerHA
– One key, 8 entitlements
– The license key will be a permanent key
installed on partition 2 and 3
 A single processor is licensed on the CBU server
– One key, one entitlement
– The license key will be a temporary key for 8
cores good for two years installed on
partitions 2 and 3
*note is the HA/DR solution requires more than
one core on CBU to run replication services,
those extra cores must also be licensed.

IBM Power Systems
PowerHA ClusterPowerHA Cluster
Three node two site PowerHA Cluster
 Three Node, Two Site PowerHA cluster
– CBU A and CBU B registered to Primary
– Standard CBU Tc and Cs apply to Primary and/or CBU A or to Primary and CBU B
CBU A CBU B
Data Center Disaster Recovery Site
iOS,PHA iOS,PHA iOS,PHA
iOS,PHA
iOS, PHA
iOS, PHA
Metro Mirror or Global Mirror

IBM Power Systems
PowerHA SystemMirror for IBM i 7.1
PowerHA SystemMirror V7 Standard
Edition
Enterprise
Edition
IBM Director Navigator graphical interface  
IBM i cluster enabled storage management  
SLIC level event management  
IASP encryption  
Integrated copy services management  
Host based replication (geomirroring)  
IBM storage based replication 
Cluster wide sysbas synchronization  
Automated failover/failback  
Three site MGM (Metro Global Mirror) 
Config wizards  
Advanced Copy Services (Lab Services)  
Cluster Enabled Admin Domain  
Cluster Enabled Flashcopy & Copy Services  
Direct attach for SVC,V7000,V3700 (Q2)  
V7000 & V3700 LUN Level Switching  
Single command D side FlashCopy 
New PowerHA GUI (replaces previous GUIs)  
 PowerHA is embedded OS
technology and provides a unified
solution for High Availability and
Disaster recovery
 PowerHA Standard Edition provides
HA solutions for the data center
 PowerHA Enterprise Edition
provides mutli-site solutions based
on storage replication services
1Q 2013

IBM Power Systems
Storwize V7000 PowerHA SystemMirror for i
 PowerHA SystemMirror 7.1 TR6
 SVC and Storwize V7000
– FlashCopy (ACS available from Lab Services as well)
– Metro Mirror, Global Mirror
– and with NPIV LUN Switching
DIRECT ATTACH

IBM Power Systems
IBM Storwize V3700 PowerHA SystemMirror for i
 PowerHA SystemMirror 7.1 TR6
 Storwize V3700
– FlashCopy and with NPIV LUN Switching
– SOD
Statement of Direction
IBM plans to enhance Storwize V3700 in 2013 with the following:
 6Gb SAS host attachment support
 Optional features:
Easy Tier
Remote mirroring
FlashCopy support for
up to 2,0450 targets

IBM Power Systems
A PowerHA IBM i Storage Options
Internal
SAS/SSD
DS8000 SVC
V7000 V3700 XIV DS5000
Other
Storage
Geographic Mirroring
Metro Mirror
Global Mirror
Metro Global Mirror
(MGM)
LUN switching
FlashCopy
Check out this PowerHA geomirror customer story!!
http://www.ibmsystemsmag.com/power/Systems-Management/High-Availability/smb_api/

IBM Power Systems
A PowerHA Outage Type Coverage
Planned & Unplanned
Partition Outages
Planned & Unplanned
Server Outages
Planned & Unplanned
Storage Outages
Site Outage Offline Backups
>2 copies of real-
time data
Synch Geo
Mirroring
Asynch Geo Mirroring
Metro Mirror
Global Mirror
Metro Global Mirror
LUN switching
FlashCopy

IBM Power Systems
Key Offerings - High Availability Services on IBM i
 Availability Workshop for IBM Power Systems
 IBM PowerHA SystemMirror for i
 Copy Services for IBM i
Utilizing Copy Services Toolkit (CST)
Advanced Copy Services for IBM PowerHA on IBM I
The DS Storage Management for IBM i Toolkit
 Independent ASP (IASP) Migration Workshop for IBM i
 Full System Flash Copy for IBM i
 Attaching and integrating IBM i to IBM external storage
Consulting services associated with the planning, design, and
implementation of best practices when attaching IBM i to IBM
external storage.
Logical configuration to ensure optimal performance and
redundancy.
Exploitation of Copy Services functions such as FlashCopy,
Metro Mirror, and Global Mirror.
http://www-03.ibm.com/systems/services/labservices/platforms/labservices_power.html#show-hide
Americas, WW Contacts
Mark Even
even@us.ibm.com
IBM i, High Availability
Why IBM®
?
Deep skills in IBM storage, clustering and IBM i planning,
implementation and integration.
Experience in application architecture and design gained from
thousands of engagements across many industries.
Ability to deliver skills transfer as part of service engagement.
PowerHA Lab Services and Training

IBM Power Systems
We have presence in each geography:
 Ask your local STG technical Director
 Get to our intranet site : CLICK HERE
 http://stgls01.rchland.ibm.com:81/toasted.nsf
 Get to our intranet contact list : CLICK HERE
https://w3-03.sso.ibm.com/sales/support/ShowDoc.wss?
docid=E256902I27187W41&infotype=SK&infosubtype=R0&node=brands,B5000&ftext=lab
%20services%20contacts
For CLIENTS and PARTNERS :
 PartnerWorld site : click here
 https://www-
304.ibm.com/partnerworld/wps/servlet/ContentHandler/stg_com_sys_lab_services_overview
 IBM.COM site: click here
 http://www-03.ibm.com/systems/services/labservices/
How to Reach STG LS+T?

IBM Power Systems
Additional Resources
 PowerHA Wiki
– www.ibm.com/developerworks/ibmi/ha/
 Lab Services
– http://www-03.ibm.com/systems/services/labservices
 PowerCare
– http://www-03.ibm.com/systems/power/support/powercare/
 Redbooks at www.redbooks.ibm.com
– Implementing PowerHA for IBM i - SG24-7405-00 (Nov 2008)
– IBM i 6.1 Independent ASPs - SG24-7811-00
– PowerHA SystemMirror for IBM i Cookbook – SG24-7994-00 (Jan 2012)
– Redbook residency; PowerHA, VIOS, Storwize, i hosting i coming in 3Q 2013
 IBM System Storage Solutions for IBM i
– Course code: AS930
– Duration: 4.0 days
– www-304.ibm.com/jct03001c/services/learning/ites.wss/us/en?pageType=course_description&courseCode=AS930
 High Availability Clusters (Power HA) and Independent Disk Pools for IBM i
– Course code: AS541
– Duration: 4.0 days
– www-304.ibm.com/jct03001c/services/learning/ites.wss/us/en?pageType=course_description&courseCode=AS541

IBM Power Systems
30
UPCOMING TRAINING
 IBM Power HA for i, Clustering, and Independent Disk Pools Implementation
 Course Code AS541
 April 22-25 in Rochester, MN
 High Availability (HA) in an IBM i environment is achieved with the implementation of an IBM i Independent Auxiliary
Storage Pool (IASP) and IBM PowerHA for IBM i. After creating an independent disk pool, data and applications are
migrated from system disk space to the independent disk pool. Then, using Cross-site mirroring (XSM) with geographic
mirroring or IBM System Storage Copy Services, the disk pool can be made highly available. Successfully implementing a
continuously available environment requires knowledge of the application, data, and end-user requirements. Learn about
many of the concepts from a series of presentations and gain practical experience through hands-on lab exercises.
 http://www-304.ibm.com/jct03001c/services/learning/ites.wss/us/en?pageType=course_description&courseCode=AS541
 System Storage DS8000 on i
 Course Code OS830
 April 16-18 in Rochester, MN
 This course introduces IBM i technical specialists to the features, architecture and capabilities of IBM System l Storage
DS6000 and DS8000 systems. It is roughly divided into two main parts: DS6000/DS8000 hardware, architecture and
configuration for IBM i use, and high availability solutions System Storage makes possible for IBM i and the technologies
involved. The material follows a step-by-step approach in showing how to configure a DS8000 system.
 http://www-304.ibm.com/jct03001c/services/learning/ites.wss/us/en?pageType=course_description&courseCode=OS830

IBM Power Systems
This document was developed for IBM offerings in the United States as of the date of publication. IBM may not make these offerings available in
other countries, and the information is subject to change without notice. Consult your local IBM business contact for information on the IBM
offerings available in your area.
Information in this document concerning non-IBM products was obtained from the suppliers of these products or other public sources. Questions
on the capabilities of non-IBM products should be addressed to the suppliers of those products.
IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give
you any license to these patents. Send license inquires, in writing, to IBM Director of Licensing, IBM Corporation, New Castle Drive, Armonk, NY
10504-1785 USA.
All statements regarding IBM future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives
only.
The information contained in this document has not been submitted to any formal IBM test and is provided "AS IS" with no warranties or
guarantees either expressed or implied.
All examples cited or described in this document are presented as illustrations of the manner in which some IBM products can be used and the
results that may be achieved. Actual environmental costs and performance characteristics will vary depending on individual client configurations
and conditions.
IBM Global Financing offerings are provided through IBM Credit Corporation in the United States and other IBM subsidiaries and divisions
worldwide to qualified commercial and government clients. Rates are based on a client's credit rating, financing terms, offering type, equipment
type and options, and may vary by country. Other restrictions may apply. Rates and offerings are subject to change, extension or withdrawal
without notice.
IBM is not responsible for printing errors in this document that result in pricing or information inaccuracies.
All prices shown are IBM's United States suggested list prices and are subject to change without notice; reseller prices may vary.
IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply.
Any performance data contained in this document was determined in a controlled environment. Actual results may vary significantly and are
dependent on many factors including system hardware configuration and software design and configuration. Some measurements quoted in this
document may have been made on development-level systems. There is no guarantee these measurements will be the same on generally-
available systems. Some measurements quoted in this document may have been estimated through extrapolation. Users of this document
should verify the applicable data for their specific environment.
Revised September 26, 2006
Special Notes

IBM Power Systems
IBM, the IBM logo, ibm.com AIX, AIX (logo), AIX 5L, AIX 6 (logo), AS/400, BladeCenter, Blue Gene, ClusterProven, DB2, ESCON, i5/OS, i5/OS (logo), IBM Business
Partner (logo), IntelliStation, LoadLeveler, Lotus, Lotus Notes, Notes, Operating System/400, OS/400, PartnerLink, PartnerWorld, PowerPC, pSeries, Rational, RISC
System/6000, RS/6000, THINK, Tivoli, Tivoli (logo), Tivoli Management Environment, WebSphere, xSeries, z/OS, zSeries, Active Memory, Balanced Warehouse,
CacheFlow, Cool Blue, IBM Systems Director VMControl, pureScale, TurboCore, Chiphopper, Cloudscape, DB2 Universal Database, DS4000, DS6000, DS8000,
EnergyScale, Enterprise Workload Manager, General Parallel File System, , GPFS, HACMP, HACMP/6000, HASM, IBM Systems Director Active Energy Manager,
iSeries, Micro-Partitioning, POWER, PowerExecutive, PowerVM, PowerVM (logo), PowerHA, Power Architecture, Power Everywhere, Power Family, POWER Hypervisor,
Power Systems, Power Systems (logo), Power Systems Software, Power Systems Software (logo), POWER2, POWER3, POWER4, POWER4+, POWER5, POWER5+,
POWER6, POWER6+, POWER7, System i, System p, System p5, System Storage, System z, TME 10, Workload Partitions Manager and X-Architecture are trademarks
or registered trademarks of International Business Machines Corporation in the United States, other countries, or both. If these and other IBM trademarked terms are
marked on their first occurrence in this information with a trademark symbol (® or ™), these symbols indicate U.S. registered or common law trademarks owned by IBM
at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries.
A full list of U.S. trademarks owned by IBM may be found at: http://www.ibm.com/legal/copytrade.shtml.
Adobe, the Adobe logo, PostScript, and the PostScript logo are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States, and/or
other countries.
AltiVec is a trademark of Freescale Semiconductor, Inc.
AMD Opteron is a trademark of Advanced Micro Devices, Inc.
InfiniBand, InfiniBand Trade Association and the InfiniBand design marks are trademarks and/or service marks of the InfiniBand Trade Association.
Intel, Intel logo, Intel Inside, Intel Inside logo, Intel Centrino, Intel Centrino logo, Celeron, Intel Xeon, Intel SpeedStep, Itanium, and Pentium are trademarks or registered
trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
IT Infrastructure Library is a registered trademark of the Central Computer and Telecommunications Agency which is now part of the Office of Government Commerce.
Java and all Java-based trademarks and logos are trademarks or registered trademarks of Oracle and/or its affiliates.
Linear Tape-Open, LTO, the LTO Logo, Ultrium, and the Ultrium logo are trademarks of HP, IBM Corp. and Quantum in the U.S. and other countries.
Linux is a registered trademark of Linus Torvalds in the United States, other countries or both.
Microsoft, Windows and the Windows logo are registered trademarks of Microsoft Corporation in the United States, other countries or both.
NetBench is a registered trademark of Ziff Davis Media in the United States, other countries or both.
SPECint, SPECfp, SPECjbb, SPECweb, SPECjAppServer, SPEC OMP, SPECviewperf, SPECapc, SPEChpc, SPECjvm, SPECmail, SPECimap and SPECsfs are
trademarks of the Standard Performance Evaluation Corp (SPEC).
The Power Architecture and Power.org wordmarks and the Power and Power.org logos and related marks are trademarks and service marks licensed by Power.org.
TPC-C and TPC-H are trademarks of the Transaction Performance Processing Council (TPPC).
UNIX is a registered trademark of The Open Group in the United States, other countries or both.
Other company, product and service names may be trademarks or service marks of others.
Revised December 2, 2010
Special Notes (continued)

PowerHA SystemMirror for IBM i

More Related Content

Viewers also liked

More from HelpSystems

Recently uploaded

PowerHA SystemMirror for IBM i

Editor's Notes