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I perform a VM-level backup on our Exchange 2010 server rather than Windows-level backup, but I've noticed that as a result (since Windows Backup has never run) there are a lot of logs. How can I get Exchange to consolidate these safely without running Windows Backup?

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up vote 5 down vote accepted

If you don't care about the logs, turn on circular logging. If you care about the logs, then use a backup method that is Exchange aware.

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You beat me to the punch... – joeqwerty Nov 27 '12 at 21:38

You have to run an Exchange aware backup that can flush the transaction logs as part of the backup or you have to enable circular logging (which isn't recommended in most scenarios).

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Why is circular logging so bad? – tacos_tacos_tacos Nov 27 '12 at 21:39
It limits the recoverability of the mailbox databases. - See here for more info (releative to all versions of Exchange) - – joeqwerty Nov 27 '12 at 21:40
It's not bad, however the usage of it should be done ONLY if you totally understand what and how it will SOLVE your problem. – Vick Vega Nov 27 '12 at 22:49

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