Avamar 5.0 Exchange Client User Guide.pdf - EMC Community ...

Avamar 5.0 Exchange Client User Guide.pdf - EMC Community ... Avamar 5.0 Exchange Client User Guide.pdf - EMC Community ...

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Capabilities and LimitationsINTRODUCTIONFor this reason, initial backup progress bytes reported by Avamar Administratorwill be larger than the size reported by Exchange; Progress bytes reported bysubsequent backups will be more in line with the Exchange sizes.Additionally, when browsing backups to restore message folders, sizes reported byAvamar Administrator will be the size required to restore that folder insideExchange, not the amount of storage space actually consumed on the Avamarserver.NOTE: This limitation applies to the Exchange Messageplug-in only.Database Service Requires Manual Intervention. The Database service,shown in the cluster administrator, does not automatically return to online statusimmediately following a database restore. The interim solution is to manuallybring the Database service online following the restore.NOTE: This limitation applies to the Exchange Server2007Exchange Server 2003 Database plug-in.Messages in Outbox Might Not Be Backed Up. Messages in the Outboxfolder might not be backed up. This can occur for a number of reasons, but all areinherent limitations of Microsoft Exchange, for which there are no known interimsolutions.NOTE: This limitation applies to the Exchange Messageplug-in only.Incorrect Initial Reporting of Folder Sizes. There is a known limitation withthe Windows Exchange Message plug-in which all folder sizes are initially reportedto be zero bytes. However, expanding a folder causes the folder size to becorrectly updated and all contents to be shown. This does not affect actual restorebehavior.NOTE: This limitation applies to the Windows ExchangeMessage plug-in. It does not apply to the Exchange Databaseplug-in.AVAMAR 5.0 • AVAMAR EXCHANGE CLIENT USER GUIDE 16

Capabilities and LimitationsINTRODUCTIONKnown Limitations with Region Profiles. If you are performing messagelevelbackups, the Region Profile for the AvamarBackupUser account must be thesame as the Exchange Server Region Profile. Otherwise, when you attempt torestore message-level backups, Exchange might incorrectly translate certainextended characters, which will corrupt the mailbox. This is a limitation ofMicrosoft Exchange.NOTE: This limitation applies to the Exchange MessagePlug-in only.Recovery of Large Message-Level Backups Might Fail. If you attempt torecover a large message-level backup, the restore may fail even though thebackup itself was successful. There is a known limitation with the MSExchangeISservice in which it can run out of resources during a MAPI restore involving a largenumber of folders or mailboxes (that is, typically 500 or more). When this occurs,the following error message is returned:CreateFolder failed 80004005 MAPI_E_CALL_FAILEDThis issue is addressed in Microsoft Knowledge Base articles 830829 and 830836and an interim solution is offered. Refer to the Microsoft Knowledge Base articlesfor additional information.NOTE: This limitation applies to the Exchange MessagePlug-in only.Windows Server 2000 support. Avamar Exchange Server Client 5.0 does notsupport Microsoft Exchange 2000 running on Windows 2000 Server. For MicrosoftExchange 2000 SP3 or later running on Windows 2000 Server SP3 or later, useAvamar Exchange Server Client 4.1.Activate physical nodes of cluster on Avamar server before configuringthe Avamar Cluster Client. When configuring a Window cluster with theAvamar Cluster Configuration tool, all physical nodes of the cluster must beactivated on the Avamar server before running the tool.In Active/Active Cluster, Simultaneous Database Restores of BothExchange Virtual Servers Will Fail In a two node cluster, when one nodefails both Exchange Virtual Servers run on a single node. If you try to restore bothExchange Virtual Servers at the same time, both restores will start together, butthe restore initiated last will fail. This occurs because both are using the samedefault log path. To prevent a failure, specify in the Windows Exchange DatabasePlugin Restore Command Line options a different log path for each EVS.AVAMAR 5.0 • AVAMAR EXCHANGE CLIENT USER GUIDE 17

Capabilities and LimitationsINTRODUCTIONFor this reason, initial backup progress bytes reported by <strong>Avamar</strong> Administratorwill be larger than the size reported by <strong>Exchange</strong>; Progress bytes reported bysubsequent backups will be more in line with the <strong>Exchange</strong> sizes.Additionally, when browsing backups to restore message folders, sizes reported by<strong>Avamar</strong> Administrator will be the size required to restore that folder inside<strong>Exchange</strong>, not the amount of storage space actually consumed on the <strong>Avamar</strong>server.NOTE: This limitation applies to the <strong>Exchange</strong> Messageplug-in only.Database Service Requires Manual Intervention. The Database service,shown in the cluster administrator, does not automatically return to online statusimmediately following a database restore. The interim solution is to manuallybring the Database service online following the restore.NOTE: This limitation applies to the <strong>Exchange</strong> Server2007<strong>Exchange</strong> Server 2003 Database plug-in.Messages in Outbox Might Not Be Backed Up. Messages in the Outboxfolder might not be backed up. This can occur for a number of reasons, but all areinherent limitations of Microsoft <strong>Exchange</strong>, for which there are no known interimsolutions.NOTE: This limitation applies to the <strong>Exchange</strong> Messageplug-in only.Incorrect Initial Reporting of Folder Sizes. There is a known limitation withthe Windows <strong>Exchange</strong> Message plug-in which all folder sizes are initially reportedto be zero bytes. However, expanding a folder causes the folder size to becorrectly updated and all contents to be shown. This does not affect actual restorebehavior.NOTE: This limitation applies to the Windows <strong>Exchange</strong>Message plug-in. It does not apply to the <strong>Exchange</strong> Databaseplug-in.AVAMAR <strong>5.0</strong> • AVAMAR EXCHANGE CLIENT USER GUIDE 16

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