![]() ![]() Xsan is fully compatible with ADIC’s StorNext line. Xsan knocks the SAN hardware out of the loop, replacing it with software that runs on Xserve and Power Mac machines. ADIC’s solution sits between SAN hardware and the servers that access it. Each of Xsan’s virtual volumes permits simultaneous read/write use by multiple servers.Īpple chose the StorNext FS technology from Advanced Digital Information Corporation as the model for Xsan. But Xsan presents that storage in its most readily usable form, as disks that are partitioned into OS X HFS+ (HFS second-generation) volumes. Here’s the elevator pitch: Xsan does the SAN thing, consolidating and virtualizing storage. And second, Xsan is precisely the right way to turn inexpensive disk arrays (like Xserve RAID) into shared, consolidated network storage. First, Xsan is really a SAN file system, which makes SANs useful and accessible beyond their core capabilities. I came out of that meeting with two key bits of knowledge. I went into the discussion knowing what a SAN is, but after about five minutes I felt like I was in short pants and learning my ABCs. I recently had a talk with Apple’s Tom Goguen, director of server and storage software, about Xsan, the software-based SAN solution that Apple’s putting out in the fall for $999 per server.
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