We have been running Exchange mailbox backups for the last couple of years using the same setup. However, it's always been very slow. Throughput is approximately 8GB / hr! The mailbox backups are successful but it is now taking about 3 days to back up all our mailboxes. I'd like to speed this up and need help.
I'm wondering if throughput is being throttled by Exchange. I've found this article by Microsoft. It shows how client RPC requests can be throttled across all clients on Exchange. However, I'm reluctant to change a global setting as I'd like to fix this just for the account used by the CommVault iData agent to back up mailboxes. Anyway, I'm not even sure if changing the RPC throttling setting would fix this.
Our setup works as follows. There was no 64bit Exchange CommVault agent available when we set this up, so I picked an existing 32bit server to use as a CDO 'proxy' server. I installed the Exchange Collaboration Data Objects (CDO) components on this server, pointed them to our Exchange mailbox server then installed the CommVault agent on there, using the method documented by CommVault. So backups are done using a CDO 'proxy' server (\\Intranet) installation of the Exchange Mailbox agent.
Here are the details:
Exchange servers: 2 x client access / hub transport servers and two clustered database servers with one cluster group name.
Exchange Version: Exchange 2007, Enterprise Edition, SP1, Rollup 9. On Windows Server 2003, Enterprise Edition, X64, SP2
CommVault: CommVault Simpana v7.0.0 SP3. CommServer, media agent software and all iData agents are on the same SP and version.
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huddie
I'm wondering if throughput is being throttled by Exchange. I've found this article by Microsoft. It shows how client RPC requests can be throttled across all clients on Exchange. However, I'm reluctant to change a global setting as I'd like to fix this just for the account used by the CommVault iData agent to back up mailboxes. Anyway, I'm not even sure if changing the RPC throttling setting would fix this.
Our setup works as follows. There was no 64bit Exchange CommVault agent available when we set this up, so I picked an existing 32bit server to use as a CDO 'proxy' server. I installed the Exchange Collaboration Data Objects (CDO) components on this server, pointed them to our Exchange mailbox server then installed the CommVault agent on there, using the method documented by CommVault. So backups are done using a CDO 'proxy' server (\\Intranet) installation of the Exchange Mailbox agent.
Here are the details:
Exchange servers: 2 x client access / hub transport servers and two clustered database servers with one cluster group name.
Exchange Version: Exchange 2007, Enterprise Edition, SP1, Rollup 9. On Windows Server 2003, Enterprise Edition, X64, SP2
CommVault: CommVault Simpana v7.0.0 SP3. CommServer, media agent software and all iData agents are on the same SP and version.
--
huddie