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How to select and implement a tape library - effectively
This article is part of the Vol. 1 No. 7 September 2002 issue of Storage magazine
A major step to better storage management is backup centralization. Here's what you'll need to ask yourself to make sure you pick the right tape library SCSI or Fibre Channel (FC)? DLT or LTO? LAN or LAN-free? How many slots do I need? Are two tape drives enough? Which features are really important? @exb Data path options from disk to tape The figure below illustrates the most common data flow options for backup from disk to tape available today. 1. This is the most commonly used method, and represents the traditional LAN-based backup. Data is read from disk by the backup client and transmitted over the LAN to the backup server and then written to tape. 2. This path represents the most common form of LAN-free backup today. Here, data is copied from disk to the backup client, but the backup client then writes data directly to a tape drive in the library. This tape drive is usually temporarily allocated to the client by the backup server. Related metadata is transmitted from the backup client to the backup server via the LAN. 3....