Microsoft Exchange Server 2003 Administrators Companion (Pro-Administrators Companion)
To successfully back up or restore an operation, you must follow some best practices:
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Ensure that the raw storage capacity of your tape exceeds the compressed storage capacity of your database by a comfortable safety margin. If it does not, plan for tape changes when doing backups.
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Routinely clean the tape drives according to manufacturer specifications.
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Do not overuse tapes. Discard them after they reach the maximum number of cycles specified by the manufacturer.
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Store the tapes in a safe and accessible location.
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Check your backup logs every day to ensure the Exchange backups were successful from the previous night.
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Perform a trial backup and restore on a monthly basis to ensure your hardware is working and to keep your restore skills up to snuff.
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Document your backup and restore procedures.
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