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Circular logging allows Exchange Server to overwrite transaction log files after the data that the log files contain has been committed to the database. However, if circular logging is enabled, you can recover Exchange Server data only up until the last full backup. 
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Circular logging allows Exchange Server to overwrite transaction log files after the data that the log files contain has been committed to the database. However, if circular logging is enabled, you can recover Exchange Server data only up until the last full backup.

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I have just noticed that Circular Logging is enabled in Exchange by default on all Small Business Server 2003 systems which I find slightly concerning from a recovery perspective.<br />
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We mainly use Backup Exec V9.1 and 10d for Exchange backups (information store and mailboxes).<br />
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I am considering disabling Circular Logging - does anyone have any experience of Exchange recovery in this scenario / suggestions as to whether Circular Logging should or should not be disabled on SBS2003?<br />
<br />
Thanks<br />
Neil
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I have just noticed that Circular Logging is enabled in Exchange by default on all Small Business Server 2003 systems which I find slightly concerning from a recovery perspective.

We mainly use Backup Exec V9.1 and 10d for Exchange backups (information store and mailboxes).

I am considering disabling Circular Logging - does anyone have any experience of Exchange recovery in this scenario / suggestions as to whether Circular Logging should or should not be disabled on SBS2003?

Thanks
Neil

Should I disable Exchange Circular Logging on Small Business Server 2003?

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.