HP Fast Recovery Solution XP SW manual Exchange, Frs

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Exchange

Exchange runs on the Producton Server and writes data to primary disk array volumes. FRS protects Exchange by creating and managing shadow copies of Exchange storage groups.

Software components called “writers” interface with Exchange to coordinate volume shadow copy creation. Some operating system writers come with Windows, while others, such as the Exchange writer, come with the application software.

Upon request from FRS for a shadow copy, the writer flushes the application buffers and holds I/O to the application. It then notifies the VSS hardware provider that it is ready for a shadow copy, and the VSS HWP copies the production volume to a recovery volume. When the copy is complete, VSS releases the application to resume normal operation. This process ensures consistent data even though the application is still running.

FRS

FRS consists of two sets of components: one set of production server components, and a separate set of recovery server components, including a graphical user interface. FRS as a whole is referred to by Microsoft as a “requestor” application that requests service from VSS.

The FRS GUI runs on the recovery server and provides user control of FRS on the production server. You can use the FRS GUI to make shadow copies of the data on the production LUNs, and use the GUI to recover the complete dataset from a copy on the recovery LUNs.

FRS on the production server interacts with the Windows VSS service and HP Hardware Provider (HWP). When FRS requests it, this service and provider combination coordinates with the writer and application to create a volume shadow copy of the production data on the production array LUNs.

The complete recovery-ready copy is placed on recovery array volumes. FRS presents the recovery volumes to the recovery server through VSS. This enables you to use the recovery server to archive the recovery data to backup tapes at any time. In the event of production data corruption, you

20HP StorageWorks EVA Fast Recovery Solution for Windows Server 2003: Administration Guide

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Contents EVA4000 EVA6000 EVA8000 First edition July 2005 part number B9552-96006 Contents Configuration Troubleshooting Page About this guide Important firmware and software dependenciesHelpful web sites Prerequisite informationHP storage web site Contact HP HP technical supportHP sales and authorized resellers Document conventions and symbols BoldRevision history Warranty statement That USE of the Software is AT Your Sole RISK. HPAbout this guide Page Overview FRS feature summary High availability using FRSFRS overview Disk ArrayAdditional FRS capabilities Functional componentsHP FRS Exchange FRSVolume Shadow Copy Service VSS Copy terminologyVSS process flow ‘ “HP VDS/VSS Hardware Providers HP disk arraysPage Configuration Typical FRS server configuration Following figure shows a typical FRS configurationRequired hardware components Recovery Server Required software componentsEVA 4000/6000/8000 Disk array with CV Workstation Production ServerImportant general configuration notes Important limitationsImportant performance issues Important Exchange 2003 configuration notesConfiguration summary Configure the Command View workstation as explained below Configuration detailsConfiguring the Command View workstation and software Configure production and recovery servers Configuring the EVA disk array Adding FRS production and recovery hostsAdding disk groups Page Configuration Page Installation Installing HP VSS HWP Installing FRS on recovery and production servers Page Installing integrity checking components Enabling the FRS license using AutoPass Installing a permanent license before trial expirationInstalling a permanent license after trial expiration AutoPass Import Passwords screen displaysPermanent license installation Page Instance count check Recovery server XML files Uninstalling FRS To uninstall FRS with the CDPage Using FRS Using FRS Opening FRSUsing the main window To expand a server instance Adding server instances Deleting server instances Creating shadow copies To create shadow copies of production LUNsPage Troubleshooting copy failures Point-in-Time Recovery Executing an FRS recoveryRoll Forward Recovery Using FRS Page Using FRS Deleting old point-in-time copies Recovery log analysis Command line interface Available commands Command usage Microsoft Exchange ServerCreating a point-in-time copy Deleting a point-in-time copyListing the point-in-time copies Server\hpfrshpfrscli addcopy /exchange /server=evs1 /sg=sg1 Example commandsCreating a copy Listing copies \hpfrshpfrscli listcopy /exchange /server=evs1 /sg=sg1Command line error codes Deleting a copyIncorrect command line parameter entered by the user Page Troubleshooting Troubleshooting Troubleshooting checksVssadmin list providers Checking logsFRS does not recognize storage groups FRS error messages MaintenanceError ExplanationRecovery Terminating processes MessageClone ClusterDifferential copy Disk arrayOnline backup FailoverFRS server MirrorRecovery LUN PlexProduction LUN SAN fabricVolume Volume shadow copySplit mirror SubsystemIndex SMA Index
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