Premium Content

Access "Roomier Backup Arrays-Sort of"

Published: 17 Oct 2012

Arrays based on ATA drives are pretty cheap, but storing backups to them can eat up capacity at a furious rate. Don't be surprised when you start seeing disk-based backup products that advertise capacities such as 23.4TB. That's the figure being promoted by Palo Alto, CA, startup Data Domain for its DD200 disk-based "recovery storage appliance." Read the fine print, though, and you'll find that those 23.4TB are virtual. In actuality, the DD200 holds 16 disks in a standard 4U high package, for useable physical capacity of 1.2TB, for a list price of $58,000. According to Brian Biles, Data Domain co-founder and vice president of marketing, a single DD200 should be enough to hold up to five months of backups for a 1TB to 1.5TB backup data set. How does Data Domain turn 1.2TB into 23.4TB? It uses a combination of standard tape compression, and a data reduction technique it calls Global Compression Redundancy Pooling. Together, these two types of compression can reduce capacity requirements by 20 times. Another startup, Irvine, CA-based Avamar, uses a technique ... Access >>>

Access TechTarget
Premium Content for Free.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

What's Inside

Features

More Premium Content Accessible For Free