Ask the Expert

How long should a tape be in rotation before it is retired?

How long should a tape be in rotation before it is retired?

    Requires Free Membership to View

Most tape vendors have recommended specifications as to how long a tape should be kept in rotation. Most tapes are good for about 500,000 head passes before they will experience any problems.

So, for example, it takes 52 passes for a DLT 7000 to fill a tape, and another 52 passes to verify the backup. Assuming you don't do a restore (which is another 52 passes), you can back up to that tape about 5,000 times.

This is assuming the drive is writing correctly of course. In addition, most people don't take care of their equipment, so it is probably best to replace the tapes ahead of the recommended specs.

If you're doing weekly backups, you probably want to replace the tapes every two years. In the end, it's better to spend the money on new tapes than just as much money to do data recovery on one tape or risk losing information critical to the operation of your business.

Read Pierre Dorion's answer to this question.

This was first published in August 2004

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: