VCB & Exchange backups

Hi, we're building a mailbox exchange server 2010 in a VSphere cluster. The server will host approximately 3200 mailboxes, each 2 GB, spread over 7 DB.

Each of these DB will be on his own logic (on a HP EVA6400) unit number, ranging from the CT 1.1 to 1.7 TB.

If we perform a backup VCB on this server that my understanding is that the server is in snapshot mode and meanwhile an extra space will be needed on each unit number logic for any changes made to the disks and I'll try to find an estimate for the additional space to allocate-does anyone have a rough idea of the level of congestion or tips on how to calculate this?

With snapshots, the amount of space required would be based on the estimated amount data written during the time of expected for FullVM backup copy.

HOWEVER... It is NOT a good idea to backup with VCB transactional systems. VSS providers and sync drivers do not play nice with SQL or Exchange. Usually, I recommend using it to only backup system using an agent for transactional/mail/base backup of data.

Dave Convery, VCDX

VMware vExpert 2009

http://www.dailyhypervisor.com

http://Twitter.com/dconvery

Prudent. We do not want to make of this.

Bill Watterson, "Calvin and Hobbes".

Tags: VMware

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    Prudent. We do not want to make of this.

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