Database Disk to Disk Backups Using ATA Disk

摘要

As the cost of disk continues to decrease, disk-based backups have become more attractive. Although tape backups still have their place in data archival and off-site vaulting, they are not a very efficient method of data recovery. Database backups are staged on disk in preparation for a tape backup routine to copy to tape. The staged backup can be stored on inexpensive A TA/SA TA disk relieving expensive primary disk storage, until the backup is written to tape for archival. This white paper describes AT A/SAT A disk capacities available for backup solutions, and also presents storage strategies for backups throughout the lifecycle of a database.