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How to get the most out of your data backup tapes: Caring for magnetic media

Magnetic tape cartridges are remarkably resilient media, but they still need to be properly cared for. Although tape life is expressed in years, careless tape handling can cut that to weeks, or even

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destroy a tape entirely. To get the most of out your tapes, it's important to handle them carefully and store them properly.

Tape backup for remote offices tutorial
Part 1: Tape still has a place in remote data backup

Part 2: How to get the most out of your data backup tapes: Caring for magnetic media

Part 3: How to optimize your backup tape rotation strategy

Part 4: How to choose the right tape library

Manufacturers have specific instructions for the care of magnetic tape cartridges, which differ from tape technology to tape technology. It's important to follow those instructions in addition to the general suggestions presented here.

Tapes must be kept clean

Dust, dirt and oils are the great enemies of tape life. Keep tapes in their plastic cases when they are not in use and don't store them in a dusty or dirty environment. Never handle the tape directly. Don't touch the tape surface and don't open the drive doors manually.

Follow tape cleaning instructions. Modern tape drives monitor the condition of the tapes and drives and will alert you when the drive needs cleaning. Don't clean the drive unless instructed to as this can shorten the life of the drive and actually decrease reliability.

Tape storage best practices

When storing tape, orient the hubs in the cartridges horizontally. Don't stack the tape cartridges flat for storage. If you are shipping more than one tape in a package, pack them securely so they can't shift or knock against each other.

Tapes store best in a cool, dry environment. ANSI recommends storing tape at 45 degrees to 90 degrees Fahrenheit with a humidity (non-condensing) of 5 percent to 80 percent. Generally speaking, conditions that are comfortable for humans are good for tapes. Keep tapes away from sunlight, hot air ducts and heaters.

Keep tapes away from magnetic fields. Common devices such as refrigerators, air conditioners use induction motors which produce strong magnetic fields. So does a color television when it is first switched on. Don't stack tapes on top of electronic equipment, even temporarily.

Some tapes need to be retensioned before or between uses. This requires running the tape for a full pass through the drive without trying to read or write to the tape. Not all tape technologies require retensioning, however. Check the manufacturer's recommendations.

Tapes should be acclimated before being used when moved to a new facility. Give the cartridge time to stabilize, especially when being moved from a colder to a warmer environment or a changed humidity. Follow the manufacturer's recommendations (usually 24 hours) on acclimatization times.

Label your tapes using the proper product in the approved manner. Don't use post-it notes or other nonstandard labels. They can come off in the drive and cause a major problem.

Finally, keep in mind that a tape lost is just as gone as a tape which has been damaged. It's vital to have an effective system for tracking and storing your tapes, including some kind of auditing process to be able to prove where your tapes are. Auditing is especially important for tapes that are in transit from one location to another.

About the author: Rick Cook specializes in writing about issues related to storage and storage management.

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This was first published in February 2009

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