Disk versus Tape Backup

The Challenge
Today's tape-based data backup infrastructures have inherent weaknesses: Tape is not a random access medium. Backed up data must be accessed as it was written to tape. Recovering a single file from a tape often requires reading a substantial portion of the tape and can be very time consuming. The recovery time of restoring from tape can be very costly.  Recent studies have shown most IT administrators do not feel comfortable with their tape backups today.

The Solution
Disk-to-disk backup can help by complimenting tape backup. Within the data center, data loss is most likely to occur as a result of file corruption or inadvertent deletion. In these scenarios, disk-to-disk backup allows a much faster and far more reliable restore process than is possible with a tape device, greatly reducing the demands on the tape infrastructure and on the manpower required to maintain it. Disk-to-disk backup is quickly becoming the standard for backup since data can be backed up more quickly than with tape, and restore times are dramatically reduced.

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