Data Deduplication

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The movement from using tape for backup to using disk for backup is well underway, with about 70% of IT organizations now using disk staging in front of a tape library onsite and approximately 15% of IT organizations having replaced their onsite tape backups with disk-based backup with data deduplication. Industry sales of tape libraries have been on the decline for the past four years, while sales of disk-based backup with deduplication are seeing double-digit growth year over year.

Many factors should be considered when making the move to disk with deduplication, as it is not as straightforward as simply buying some disk. Unlike primary storage, from a technology perspective, disk backup solutions are based on hundreds of thousands of lines of software code to as many as a million lines of software code….

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