Sans Digital 42TB External Storage System

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Sans Digital have revealed details of their AccuRAID AR442F4 external storage system. The target audience is datacenters looking for massive storage capacity, i.e. 42TB and featuring RAID 6.

For those of you who don’t know Raid 6 (Wikipedia):

Striped set with dual distributed Parity. Provides fault tolerance from two drive failures; array continues to operate with up to two failed drives. This makes larger RAID groups  more practical, especially for high availability systems. This becomes increasingly important because large-capacity drives lengthen the time needed to recover from the failure of a single drive. Single parity RAID levels are vulnerable to data loss until the failed drive is rebuilt: the larger the drive, the longer the rebuild will take. Dual parity gives time to rebuild the array without the data being at risk if one drive, but no more, fails before the rebuild is complete.

The External Storage contains 42 bays, with each drive being hot-swappable. Bandwidth is provided by the fibre channel, that’s right normal USB or eSATA ports are not up to scratch for this beast.

Oh yeah, one thing i forgot to tell you, the Sans Digital AccuRAID AR442F4 external storage device has a price tag of $15,000. So how many do you want, one or two?