Access "D2D Backup: Disk's dual role"
This article is part of the Vol. 3 No. 12 February 2005 issue of Storage managers reveal details on tape reliability
Your backup choices are much greater and more complex compared to the days when you simply had to choose a backup application and tape library. Disk has solved the reliability and performance issues that most storage managers have experienced with traditional backup systems, but disk-to-disk-to-tape (D2D2T) has complicated the backup and restore processes. Users must now choose from among three backup architectures and four types of disk-based backup targets. This three-part series on disk-to-disk (D2D) backup describes the pros and cons of each approach to help you clarify your choices. The traditional backup architecture Before explaining how the different D2D backup options work, it's important to understand the backup systems they'll work with and why you might want to augment those systems with disk. In a traditional backup architecture (see Traditional backup architecture, this page), software resides on the backup client (the server to be backed up) that allows the backup server to transfer that client's data to tape, disk or virtual tape. The data ... Access >>>
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