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VTLs are built around four architectures that address issues such as media portability and backup software compatibility differently.
Virtual Tape Libraries (VTLs) are being deployed in ever-increasing numbers as the primary target for backups and the source for recoveries. But because VTLs are inserted before tape drives in the backup and recovery process, performance and management issues are cropping up that VTL vendors are just beginning to address.
Before jumping on the VTL bandwagon, you need to answer the following questions:
- How well does the VTL scale to meet higher connectivity or capacity needs?
- What management features does a particular VTL offer?
- How well does it integrate with backup software?
- What impact do features like compression, data deduplication and encryption have on VTL performance and capacity?
This was first published in August 2006