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Application Use Cases for the

HP Serviceguard Storage Management Suite

Table of contents

Introduction......................................................................................................................................... 2

Purpose of document........................................................................................................................ 2

Definition of terms............................................................................................................................ 3

Related documents........................................................................................................................... 4

History of the relationship between HP and Veritas (Symantec).............................................................. 5

HP Serviceguard Storage Management Suite overview ............................................................................ 6

HP Serviceguard Storage Management Suite and HP-UX 11i Operating Environments................................ 8

Relevant HP-UX 11i Operating Environment Content............................................................................. 8

HP-UX 11i Operating Environment add-on bundles .............................................................................. 9

Add-on bundles with HP Serviceguard ............................................................................................ 9

Bundles without HP Serviceguard ................................................................................................... 9

HP Serviceguard Storage Management Suite bundles with VxVM and VxFS ............................................. 10

T2771xx: HP Serviceguard Storage Management ............................................................................. 10

T2773xx: HP Serviceguard Storage Management for Oracle.............................................................. 11

T2774xx: HP Serviceguard Storage Management for Oracle Premium................................................. 12

HP Serviceguard Storage Management Suite bundles with CVM and CFS................................................ 13

CFS-specific application integration considerations ............................................................................ 13

Comparing node-specific and cluster-wide files.............................................................................. 13

Synchronizing data updates on CFS............................................................................................. 14

Performance and scaling with CFS ............................................................................................... 15

CFS primary placement for failover applications ............................................................................ 16

Shutdown for single-instance failover applications in CFS clusters..................................................... 16

T2775xx: HP Serviceguard Cluster File System.................................................................................. 18

T8686xx/T8696xx: HP Serviceguard Cluster File System for Oracle.................................................... 20

T2777xx: HP Serviceguard Cluster File System for Oracle RAC........................................................... 21

Appendix A: Product and bundle matrix............................................................................................... 22

Appendix B: Feature, function, and benefit matrix ................................................................................. 23

Appendix C: Quick reference of products, associated product versions, and product numbers.................... 26

Appendix D: At-a-glance view of the Serviceguard Storage Management Suite options.............................. 27

For more information.......................................................................................................................... 28

Summary of content (28 pages)

PAGE 1
Application Use Cases for the HP Serviceguard Storage Management Suite Table of contents Introduction......................................................................................................................................... 2 Purpose of document ........................................................................................................................ 2 Definition of terms ...........................................................................................................
PAGE 2
Introduction The HP Serviceguard Storage Management Suite offers software bundles that integrate HP Serviceguard (SG) with the Veritas Storage Foundation™ by Symantec (SF) providing powerful database and storage management capabilities while maintaining the mission-critical reliability of HP Serviceguard.
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Definition of terms Term Definition CFS Cluster File System: A file system that is available for concurrent read and write access to multiple or all nodes of a cluster. CVM Veritas Cluster Volume Manager: Enables multiple cluster nodes to access volumes concurrently. DCOE HP-UX 11i v3 Data Center Operating Environment: Business critical virtualization built in—the ideal offering for customers who are consolidating or building an infrastructure for the future.
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Definition of terms (Cont'd) Term Definition SGCFSRAC HP Serviceguard Cluster File System for RAC: An integrated offering of Serviceguard with the cluster file system that provides robust availability, improved manageability, and scalability for Oracle RAC environments. SGSM HP Serviceguard Storage Management: A bundled offering of Serviceguard with file system and volume management functionality.
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 http://docs.hp.com → 11i v3 (under “By OS Release”) → HP-UX 11i v3 Operating Environments – HP-UX 11i v3 Foundation Operating Environment – HP-UX 11i v3 High Availability Operating Environment – HP-UX 11i v3 Data Center Operating Environment  http://docs.hp.com → 11i v2 or 11i v3 (under “By OS Release”) → Veritas Volume Manager and File System – Veritas – Veritas FlashSnap Point-In-Time-Copy Solutions Administrator’s Guide  http://docs.hp.
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HP Serviceguard Storage Management Suite overview In addition to the traditional packaging of Serviceguard as a stand-alone product, part of Application Release (AR), or part of an operating environment (MCOE, HAOE, or DCOE), software bundles are available through the Serviceguard Storage Management Suite offering.
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The following table shows a mapping of the Serviceguard Storage Management Suite and the products included in each bundle.
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HP Serviceguard Storage Management Suite and HP-UX 11i Operating Environments Relevant HP-UX 11i Operating Environment Content HP-UX 11i Operating Environments (OEs) are HP-tested and integrated software packages that deliver the HP-UX 11i operating system and related software optimized to meet particular customer requirements. These operating environments are completely integrated, tested, and supported by HP, and are available on both HP Integrity and HP 9000 server environments.
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HP-UX 11i Operating Environment add-on bundles HP created specific add-on bundles for some of the OEs to reduce the product and price duplication.
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HP Serviceguard Storage Management Suite bundles with VxVM and VxFS The following Serviceguard Storage Management Suite bundles all support clusters of up to 16 nodes but differ from each other based on the Veritas Storage Foundation version they include:  Veritas Storage Foundation Standard  Veritas Storage Foundation for Oracle  Veritas Storage Foundation for Oracle Enterprise T2771xx: HP Serviceguard Storage Management The HP Serviceguard Storage Management (SGSM) bundle integrates Serviceguard high-
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The failover applications can be customized, custom integrated, or a single-instance database. If you deploy a single-instance Oracle database, HP recommends T2773xx or T2774xx because they include special features for Oracle database environments. Users who would like to standardize volume managers on multi-vendor hardware might choose T2771xx even if they are not looking for any of its unique features. This bundle is suited for the most basic and cost-effective configurations.
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 Asynchronous File System I/O (/dev/async): Normally, direct I/O is synchronous and that can downgrade write performance significantly. For example, an application would block on a write I/O until the write completes. With Asynchronous File System I/O, the direct I/O is also asynchronous in the same way as it is when the database is deployed on raw volumes.
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HP Serviceguard Storage Management Suite bundles with CVM and CFS The T2775xx and T2777xx HP Serviceguard Storage Management Suite bundles include CVM and CFS. T2777xx also include Oracle-specific tools and database accelerators. These three bundles will support clusters of up to sixteen nodes. CFS-specific application integration considerations CFS offers new functionality to applications but provides new challenges in integrating them with CFS and exploiting the features delivered with CFS.
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Figure 1: Implementing node-specific files within the CFS name space CFS storage Node A Node B /cfsmnt01 apache logs htdocs /cfsmnt01/apache/logs/ --> /var/opt/apache/logs m Sy /var/opt/hpws/logs Local root disk k lin c li bo Sy mb oli c lin k • Symbolic link is created once on CFS • Node-specific log files are stored in the local file system (which is not part of CFS) /var/opt/hpws/logs Local root disk Cluster-wide files are best placed on CFS.
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Performance and scaling with CFS Another aspect to consider while implementing an application in a CFS cluster is the I/O performance. If an application uses the CFS only from one node to take advantage of possible improved failover times and ease of administration, the I/O performance is expected to be equivalent to the performance on a local VxFS. For Serviceguard Storage Management Suite, the expectations are different when the CFS data is being accessed concurrently by multiple nodes.
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CFS primary placement for failover applications For failover applications that only run on one node at the time, the location of the CFS primary is also important. The best performance is expected if the CFS primaries of all file systems used by an application is using are co-located with the application package on the same node and not evenly distributed among all cluster nodes.
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# PREPARATION: On application/package start memorize application process # names or process identifier (PIDs) # keep the list updated with monitor function if needed # # STEP 1: Graceful Shutdown Attempt # Call proprietary application shutdown command first. # e.g. “shutdown immediate” for Oracle database or # “stopsap r3” for R/3 application server # # STEP 2: Wait for a configurable amount of time (grace period) to give # native application shutdown procedure a chance to clean up. # e.g.
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T2775xx: HP Serviceguard Cluster File System The HP Serviceguard Cluster File System (SGCFS) is an integrated product bundle that includes Serviceguard high availability clustering with Symantec’s Veritas Storage Foundation CFS, which adds the Veritas CFS and Veritas CVM for concurrent data access from multiple servers to the content of SGSMP.
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 The following multi-instance applications may benefit from a CFS by improving scalability (by adding additional instances to additional cluster nodes): – Web Server Farms: Web servers are particularly suitable for a CFS cluster because their application is typically read-only. Moreover, with a client load-balancing front end, a web server cluster’s capacity can be expanded by adding a server and another copy of the site.
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T8686xx/T8696xx: HP Serviceguard Cluster File System for Oracle The HP Serviceguard Cluster File System for Oracle (SGCFSO) is available only as an integrated bundle with MCOE, HAOE, and DCOE. It is not available as standalone. It is an integrated product bundle that includes Serviceguard high availability clustering with Symantec’s VxVM and VxFS, plus the Veritas CFS and Veritas CVM for concurrent data access from multiple servers for Oracle single instance environments.
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T2777xx: HP Serviceguard Cluster File System for Oracle RAC The HP Serviceguard Cluster File System for Oracle RAC (SGCFSRAC) is an integrated product bundle that includes Serviceguard high availability clustering and Serviceguard Extension for RAC with Symantec’s VxVM and VxFS, plus the Veritas CFS and Veritas CVM for concurrent data access from multiple servers for Oracle RAC environments. This bundle allows the use of a CFS in an Oracle RAC environment, together with SGeRAC.
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Appendix A: Product and bundle matrix Product T2771xx T2773xx T2774xx T2775xx T2796xx T2777xx T2794xx T2795xx T8686xx T2797xx T8684xx T8685xx T8696xx T8687xx T8694xx T8695xx T8697xx HP Serviceguard ✓ ✓ ✓ ✓ ✓ ✓ Serviceguard Manager ✓ ✓ ✓ ✓ ✓ ✓ Enterprise Cluster Master Toolkit ✓ ✓ ✓ ✓ ✓ ✓ Veritas File System ✓ ✓ ✓ ✓ ✓ ✓ Veritas Volume Manager ✓ ✓ ✓ ✓ ✓ ✓ Veritas Dynamic Multi-Pathing ✓ ✓ ✓ ✓ ✓ ✓ Veritas Enterprise Administrator ✓ ✓ ✓ ✓ ✓ ✓ Dy
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Appendix B: Feature, function, and benefit matrix Feature Function Benefit HP Storage Management Suite bundle Large File Systems Maximum supported file system size 40 TB Better scalability All bundles Block Level Incremental Backup Support (Requires Net Back Up product) Backs up only changed BLIB data blocks Faster backups and lower CPU and network utilization All bundles Checkpoint Restore Restores from the point-in-time image of the database without going to tapes by putting changed blocks ba
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Feature Function Benefit HP Storage Management Suite bundle Hardware Assisted E-Copy Provides the ability to move data across the SAN without having to first read it into the server memory Allows for off-host backup or restore processing to occur, which by definition implies virtually no server CPU cycles are dedicated to this task All bundles History log Provides a journal of issued commands Faster time to resolution for support All bundles Hot relocation Migrates data automatically from f
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Feature Function Benefit HP Storage Management Suite bundle Oracle SmartSnyc Support (with ODM) Improves Oracle runtime and recovery performance with mirrored volumes via ODM configuration Improved performance T2773xx, T2774xx, T8686xx, T2777xx Portable Data Containers Easily and quickly converts data for use on different operating systems Makes migrating to new operating systems easy, enables multi-platform off-host processing, and reduces migration cost and time All bundles Site Awareness/Remo
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Appendix C: Quick reference of products, associated product versions, and product numbers HP-UX OS version HP-UX 11i v2 HP-UX 11i v3 HP-UX 11i v3 A.11.19 A.11.19 A.11 .19 5.0 5.0 5.0.1 A.02.01 A.02.01 A.03.
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Appendix D: At-a-glance view of the Serviceguard Storage Management Suite options Figure 2: At-a-glance view of the Serviceguard Storage Management Suite options HP Serviceguard Storage Management Suite of Products Serviceguard Bundles Non -Serviceguard Bundles For HP Serviceguard HP -UX For HP Serviceguard Linux Storage Management for Oracle Non- Oracle Oracle Cluster File System Oracle RAC Non-RAC HP Serviceguard Cluster File System HP Serviceguard Cluster File System for RAC MC, DC, or HAOE w
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For more information For more information, refer to: www.hp.com/go/serviceguardsolutions and www.hp.com/go/sgsms Technology for better business outcomes © 2006, 2008–2009 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.