IBM PowerHA for AIX _HACMP_

Proven availability for an on demand environment IBM PowerHA for AIX (HACMP) Simpler. Faster. Goes the Distance. hardware cannot prevent. Planned outages for application and system maintenance impact business performance and businesses are aggressively shrinking the time allotted for this type of activity. And finally is the issue of disaster recovery. Increasingly IT shops are Need for high availability and disaster moving away from outsourced DR operations to in-sourced DR operations. The motivation is basic economics; modern DR solutions require continuous replication of production data to a remote location and this requires dedicated resources. The simple fact is that owning your own DR solution is not only economically sensible but it gives you greater control of your own environment. The two key requirements associated with disaster recovery are recovery point objective (RPO) and geographic dispersion. GLVM async mode and Global Mirror give you unlimited geographic dispersion with minimal impact on the performance of the application and data you are protecting. Highlights ■ Help protect critical business applications from outages; planned or unplanned ■ Extend failover to backup resources at remote sites using optional PowerHA™/XD support for asynchronous mode for GLVM or for Global Mirroring on SAN Volume Controller (SVC) ■ Take advantage of increased security characteristics and compliance through support of IPV6 for client access to your PowerHA for AIX cluster recovery Throughout the day—often 24 hours a day-IT systems are hard at work. But what happens when the systems or applications are not available? It is widely documented that outages increase the total cost of IT ownership as well as causing potential damage to client relationships. Although hardware has become very reliable, research shows that unplanned outages occur and typically result from operator error, software bugs, environmental conditions and other non hardware related situations—problems that reliable IBM’s premier availability solution IBM PowerHA for AIX® (formerly High Availability Cluster Multiprocessing – HACMP™) helps protect critical business applications from outages; planned or unplanned. For over a decade, the PowerHA for AIX solution has provided reliable monitoring, failure detection and automated recovery of business application environments to backup resources, exploiting IBM’s suite of disk storage solutions which provide the core data resiliency foundation. IBM developers invent, deploy, integrate and test to refine the usability and robustness of PowerHA for AIX. Release 5.5.0 exemplifies this commitment to excellence. IP version 6 (IPV6) is the follow on version of the IPV4 Internet Protocol. It has better security characteristics and has been mandated by the U.S. Federal Government for products to be purchased by government agencies. PowerHA for AIX (V5.5.0) now enables a client to connect to the PowerHA cluster via IPV6. PowerHA can be configured to react to hundreds of system events, including problems that are not severe enough to interrupt proper system operation (such as process failure or exhaustion of system resources). PowerHA monitors, detects and reacts to such conditions, maintaining service availability during random, unexpected software problems. Up to 32 nodes running the AIX operating system (OS), or up to eight nodes running the Linux® OS, can participate in a PowerHA cluster, making it ideal for environments requiring rocksolid availability. PowerHA runs in AIX environments (and additionally in IBM i environments) and leverages IBM PowerVM™ virtualization capabilities by dynamically increasing system resources to accommodate takeover workloads as well as live partition mobility. When running in a small micropartition on a backup server, it enables the automatic increase in system PowerHA V5.4 supports Linux, extending many of its robust capabilities and heritage to the Linux environment. Support for Linux will include the base capabilities for reliable monitoring and failure detection available for AIX. resources to accommodate the primary application in the event of a failover. When running in a live partition mobility scenario, PowerHA for AIX moves with the automated migration environment! The PowerHA for AIX solution can virtually eliminate planned outages by transferring users, applications and data to backup systems during scheduled maintenance. Business continuity and disaster recovery with PowerHA/XD PowerHA/XD (Extended Distance), an optional feature of PowerHA for AIX now offers GLVM asynchronous mode and also support for SVC Global Mirror. Both options extend failover to backup resources at remote sites without impacting performance in the production application environment (a consideration with synchronous replication methods which are optimized for campus level distances). PowerHA/XD also provides support through transparent integration with campus level failover for Enterprise Storage Server® (ESS), IBM System Storage™ (DS6000™ and DS8000™), and SAN Volume Controller (SVC) Metro-Mirror peers and failover for IP-connected peers using the native synchronous mode LVM AIX mirroring technology. When PowerHA for AIX detects a failure, it can quickly and automatically take action to restore the application, restarting it on a remote redundant system. PowerHA/XD is essential for clients who must protect themselves from site-wide failures or large-scale disasters by mirroring business-critical data across sites while enabling failover to these remote sites. This applies to businesses of any size with multiple sites, regional operations or wherever decentralization of data is desired. PowerHA/XD offers multiple technologies for achieving long distance data mirroring, failover and resynchronization. ● ● PowerHA/XD’s Geographic Logical Volume Manager (PowerHA/XD:GLVM) component now provides remote asynchronous data mirroring and enables failover to remote sites using the mirrored data. GLVM’s IP-based mirroring automatically maintains a data replica across geographically remote sites and completely manages data replication during production, failover and recovery. Users already deploying base PowerHA for AIX function in their environment can readily extend it with PowerHA/XD to deploy a highly resilient geographically dispersed environment. You can now economically deploy your own in house disaster recovery solution. ● PowerHA/XD supports ESS/ Metro-Mirror and System Storage DS6000/DS8000 Metro-Mirror, enabling automatic failover of disks that are Metro-Mirror pairs and creating a powerful solution for clients using storage subsystems with Metro-Mirror. By automating the management of Metro-Mirror, recovery time is minimized after an outage, regardless of whether the clustered environment is local or geographically dispersed. PowerHA/XD, in combination with Metro-Mirror, manages a clustered environment to allow mirroring of critical data to be maintained at all times. PowerHA/XD supports IBM System Storage Metro-Mirror for SVC which enables true high availability within the campus or city environment, and with V5.5.0 Global Mirror for SVC is also supported for unlimited geographic dispersion. Metro Mirror deployed solutions are completely synchronous and are therefore optimized for high availability operations while Global Mirror is asynchronous and is therefore optimized for geographic dispersion. PowerHA enhancements and capabilities PowerHA for AIX technology is tightly integrated with AIX to exploit some of its most powerful features. Enhancements and capabilities make the PowerHA solution: SIMPLER to configure and more flexible to maintain: ● ● ● ● Greater flexibility through PowerHA application discovery technology, which automatically identifies application types, resulting in the generation of a highly available cluster environment. Moving applications into a highly available environment with PowerHA technology is now even easier through the power of nondisruptive installation and configuration. A PowerHA solution does not require a system shutdown for installation enabling on-thefly startup without application outages. ● Applications do not take an outage hit when maintenance occurs to a PowerHA cluster. PowerHA clusters extend the non-disruptive capabilities to apply service without disrupting production applications. Web-based user interface enables cluster management for configuring, monitoring and managing clusters from the same management console, including one on a platform outside of the cluster domain which it is managing. Popular Online Planning Worksheet tool walks you through the cluster configuration process and allows planning and updating of the configuration until satisfied. This cluster definition file may then be utilized by the PowerHA solution to create the corresponding cluster automatically. ● ● ● ● ● ● Specific applications within a cluster can be manipulated, broadening cluster environment options and removing dependencies on other cluster resources. The Cluster Test Tool allows automatic evaluation of cluster behavior under a set of specified circumstances so an environment can be tested overnight and when staff is not available. Enhanced security mechanisms protect the integrity and operation of a cluster. Automated nightly cluster verification reduces the risk that a change to the cluster may interfere with future cluster operation or failover. PowerHA File Collections provide an easy way to maintain file synchronization across a cluster. Support for Veritas File System to simplify implementation in VFS environments. FASTER administration, event processing and application recovery: Goes the Distance to provide disaster recovery across multiple sites for AIX environments: ● ● Policy-based cluster manager intelligently and automatically responds to failures and removes the need for script-based management PowerHA for AIX (HACMP 5.5.0.0) now supports IPV6 access from your client to the PowerHA cluster Streamlined resource movement by the cluster manager enables faster response to failures Ability to define cluster-wide application dependencies streamlines and simplifies failover of complex, multi-tier applications Simplified configuration wizard helps to build the majority of cluster environments in four easy steps, creating usable clusters within minutes Streamlined remote mirroring capabilities within the PowerHA/XD Metro-Mirror support enables faster cluster set up cycles PowerHA/XD:GLVM async mode enabling mirroring to remote sites with minimal impact on the production application environment ● ● ● ● ● ● ● ● AIX Logical Volume Manager (LVM) split mirroring for high availability in SAN environments PowerHA/XD provides a portfolio of tools that perform automatic recovery of hardware and software failures across disparate geographic distances. This portfolio includes: — GLVM technology provides asynchronous remote data mirroring and failover — Support for System Storage Metro-Mirror for DS6000, DS8000 and SAN Volume Controller — Extended support for intermixing System Storage Metro-Mirror backend storage between ESS, DS8000 and DS6000 disk subsystem storage arrays, allowing maximum use out of storage investments ● ● Manage and move network communications between disparate sites, allowing users the flexibility to takeover IP workloads at back-up locations Concurrent mode access allows active applications and data synchronization at a local site, while still backing up to a secondary site PowerHA/XD:GLVM asynchronous data mirroring enables mirroring of your production data to a remote location Capacity BackUp for business continuity For high-end IBM Power™ 595 servers, a specially configured and priced Capacity BackUp system is available for installation at a remote site. The server contains a minimum number of active processors and a large number of inactive Capacity on Demand (CoD) processors that can be temporarily activated when needed for disaster recovery. A PowerHA cluster can automatically detect the loss of the production system enabling the activation of the Capacity BackUp system to roll clientcritical applications over to as many CoD processors as needed to keep the business running with minimal loss of service. PowerHA Smart Assists streamline implementation and configuration The optional PowerHA Smart Assists package for AIX simplifies implementation and configuration of PowerHA in DB2®, Oracle and WebSphere® environments. By deploying applicationspecific knowledge to extend the standard auto-discovery features of PowerHA, the Smart Assists package provides all the necessary application monitors and start/stop scripts to streamline the configuration process. ● ● Complementary cluster software IBM also offers a broad range of additional tools to aid in efficiently building, managing and expanding high-availability clusters in AIX and Linux environments. These include: ● General Parallel File System™ (GPFS™) is a high-performance, shared-disk file system using standard UNIX file system interfaces and providing concurrent access to data from all nodes in a cluster. GPFS currently supports several of the world’s most powerful supercomputers and can be configured to provide extremely high reliability by eliminating many single pointsof-failure (which are typical of network and SAN file systems) Tivoli® Storage Manager provides enterprise management of backup and recovery to tape or disk ● Workload Manager for AIX, which provides resource balancing between applications. New generation of servers The PowerHA solution runs under the AIX and Linux operating systems on IBM Power™ Systems. Through innovative technology, logical partitioning, broad support of open standards for application flexibility and a full range of tools to manage IT infrastructure, these servers offer the performance, availability, scalability and infrastructure management demanded by today’s growing on demand business environments. They combine the benefits of IBM Power Architecture® technology and mainframe-inspired RAS (reliability, availability, serviceability) features with the OS for efficient handling of missioncritical applications. Gaining the IBM advantage High availability solutions from a single vendor provide clients the confidence that comes from integrated design and testing. This reduces the risk of failures resulting from combining disparate And for AIX environments: ● Cluster Systems Management (CSM) provides a powerful tool to manage multiple machines from a single point-of-control. Cluster management capabilities include system configuration, software distribution and maintenance, hardware control, remote command execution, diagnostics and system monitoring with automated problem responses GLVM is the AIX software-based technology for real time asynchronous geographic data mirroring over standard TCP/IP networks. AIX:GLVM can help protect a business from a disaster by mirroring mission-critical data to a remote disaster recovery site. If a disaster, such as a fire or flood, were to destroy the data at the production site, you would already have a recent copy of the data at your disaster recovery site. components from multiple vendors and can be a critical factor for business environments. IBM high availability solutions provide the advantage of IBM Power Systems, the AIX or Linux operating systems, IBM TotalStorage offerings and PowerHA software. which provides basic and customized assistance for installation of PowerHA clusters. This service is customizable with the following elements: ● ● ● ● High Availability Cluster Proof of Concept Review Planning and design of an Availability Cluster Installation and configuration of an Availability Cluster Application integration assistance (eg. DB2, Oracle, WebSphere) ● ● ● IBM servers with PowerHA clusters are backed by comprehensive offerings and resources that provide value at every stage of IT implementation. These include High Availability Cluster Implementation Services, an offering ● ● Development and execution of a Cluster Test Plan Enhanced monitoring and reporting setup Operations planning and operations documentation development Migration/upgrades services The Power Systems Availability Factory Based on an assessment of the complete system environment, IBM availability experts can design a client solution to meet the target availability level for on demand business needs. For more information To learn more about the PowerHA solutions, contact your IBM marketing representative or IBM Business Partner or visit the following Web sites: ibm.com/systems/power/software/ availability/ ● ● © Copyright IBM Corporation 2008 IBM Corporation Integrated Marketing Communications, Systems and Technology Group Route 100 Somers, NY 10589 Produced in the United States of America October 2008 All Rights Reserved This publication was developed for products and/or services offered in the United States. IBM may not offer the products, features or services discussed in this publication in other countries. The information may be subject to change without notice. Consult your local IBM business contact for information on the products, features and services available in your area. All statements regarding IBM’s future directions and intent are subject to change or withdrawal without notice and represent goals and objectives only. IBM, the IBM logo, AIX, DB2, DS6000, DS8000, Enterprise Storage Server, General Parallel File System, GPFS, HACMP, Power Systems, POWER, Power Architecture, PowerVM, System i, System p, System Storage, Tivoli, TotalStorage and WebSphere are trademarks or registered trademarks of IBM Corporation in the United States, other countries or both. A full list of U.S. trademarks owned by IBM may be found at ibm.com/legal/copytrade.shtml. 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