StorageTek first described EchoView in November 2002 as software that would work in conjunction with its BladeStore ATA-based arrays (see StorageTek Puts Backups on Auto).
The company decided to deliver EchoView in a hardware package, Chait says, to minimize the performance degradation on the servers. For this reason, EchoView will require users to install a QLogic Corp. (Nasdaq: QLGC) iSCSI adapter, which includes a TCP offload engine (TOE), in every server they're protecting. Even at full throttle, the QLogic adapter consumes less than 5 percent of the host CPU, Chait claims.
"We sit on top of the device driver stack, and pass the writes over to the iSCSI TOE," he says.
StorageTek's list price for the QLogic iSCSI HBAs will be $1,700. The company expects to eventually certify other adapters to work with EchoView. ISCSI adapter vendors include Adaptec Inc. (Nasdaq: ADPT), Alacritech Inc., and Intel Corp. (Nasdaq: INTC) (see Adaptec Shipping iSCSI).
The E400 initially will support Windows 2000 and Solaris. Later in the summer, StorageTek plans to release support for AIX, HP-UX, and Linux; Windows Server 2003 is on the roadmap.
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