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Published on: April 10, 2009
Type of content: WHITE PAPER
Format: Unknown
Length: 6 pages
Price: FREE

Overview:
While tape has been the dominant storage medium for data protection for decades because of its low cost, it is steadily losing ground to disk-based deduplication storage systems.

The CPU-centric design of Data Domain systems takes the pressure off of disk accesses as a bottleneck. Over the last 20 years, CPUs have improved in speed by a factor of millions, while disks have improved by about 10x. CPU vendors appear poised to continue these benefits well into the future. It is reasonable to imagine that each doubling of cores could mean Data Domain systems can improve speed by about a factor of 50%.

In SISL (Stream Informed Segment Layout), Data Domain has developed a proven
architecture to deliver high throughput deduplication storage systems with economical storage hardware. Over time, this will allow the continued scaling of CPUs to add direct benefit to system scalability.