Troubleshooting backups: Tape compression

While 50 percent compression is theoretically possible, it is almost never achieved. More common is a figure of 40 percent, but the exact perc

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entage depends on the types of data being backed up and may be less. . .sometimes a lot less.

Data types aside, there are many reasons why you don't get the expected compression ratio. Here are five of them.

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

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