> View this now

Published on: April 2008
Type of content: WHITE PAPER
Format: Adobe Acrobat (.pdf)
Price: FREE

Overview:
Though data de-duplication technologies have been around for years, there is a renewed focus on them recently as they are being utilized by products in the disk-based backup market. Data deduplication enables disk to be a feasible long-term retention backup media--making it the same or lower cost than tape-based systems.

This paper discusses the 4 key reasons why ExaGrid’s byte-level data de-duplication outperforms in-line block-level data de-duplication in a disk-based backup system. ExaGrid’s approach achieves the following:

• Shortest possible backup window due to a post-processing model
• Instant restore capability by keeping most recent backup intact
• Optimizations for your specific backup application and content awareness
• Scales to larger amounts of data and avoids hash table limitations