begin quoting Gregory K. Ruiz-Ade as of Mon, Dec 17, 2007 at 10:56:50AM -0800: > On Dec 17, 2007, at 10:32 AM, Michael O'Keefe wrote: > > >I don't know if there's a "standard" for RAID communications. > >It would be nice if the RAID cards spoke IDE/SCSI/SATA so they > >actually did look like disk block devices and didn't need any > >specific kernel driver. I'm sure there are reasons why this doesn't > >happen, I don't know what they are though. > > I would hazard that it's mainly a cost issue. it's obviously > possible, because the external self-managed RAID cabinets do exactly > that: look like a SCSI, SATA or whatever device, and work just like a > Big Hard Disk. > > In fact, I think I recall seeing a module that would fit in a 5.25" > drive bay and do exactly that, but it's been a few years since I've > seen it. > > If you wanted extra credit, you'd provide an application that opened a > control interface as a SCSI generic device to the control module > (would would itself appear as another SCSI target separate from the > storage). It's perfectly doable. > > But it's not dirt-cheap. > > Remember, the Cheap Bastards drive everything. Why do it in expensive > hardware, if you can just do it in cheaper hardware, or software?
I think you have nailed it on the head. -- Damn cheap bastards, Not spending their money to bring down prices for me. Stewart Stremler -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
