The visible SAN from Apple
"I came out of that meeting with two key bits of knowledge. First, Xsan is really a SAN file system, which makes SANs useful and accessible beyond their core capabilities. And second, Xsan is precisely the right way to turn inexpensive disk arrays (like Xserve RAID) into shared, consolidated network storage.
Hereís the elevator pitch: Xsan does the SAN thing, consolidating and virtualizing storage. But Xsan presents that storage in its most readily usable form, as disks that are partitioned into OS X HFS+ (HFS second-generation) volumes. Each of Xsanís virtual volumes permits simultaneous read/write use by multiple servers."
(Submitted by Noel Sat May 29, 2004 )
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