At 11:22 PM 6/11/2009 +0100, you wrote:
On Thu, 2009-06-11 at 12:51 -0400, Dave McGuire wrote:
On Jun 11, 2009, at 12:29 PM, John Finigan
wrote:
> iSCSI makes up (in a clumsy way) for a lack of a "first class citizen"
? ?Eh. ?(and this is WAY OT) ?iSCSI is kinda
interesting; I've been
working with it quite a bit lately.
Have you seen ATAoE? ?It is, as the name implies, ATA over Ethernet.
Unlike the 300-page mail-order catalogue of the iSCSI spec, the ATAoE
spec is eight pages, mostly taken up with diagrams showing an ATA packet
wrapped inside an Ethernet frame.
I toyed briefly with the idea of writing an ATAoE target for the PDP11.
Not sure if I could port it to OS/2, though, or make it talk to TK50s.
Gord:
We here at Milwaukee County Transit have about 59TB on AOE
(ATA-over-Ethernet). We use these 15-slot boxes from Coraid that boot up a
little Linux kernel- but that's largely invisible to the user. It uses all
the existing wiring- cat 5, fiber, whatever. We dedicated some small
ethernet switches to them, but you wouldn't necessarily have to. One of them
is across the street, on a fiber link, in case the building blows up. The
Coraid boxes use standard SATA drives, any size, and support all kinda array
structures, RAID levels, etc. I think the AOE "initiator" is open-source, so
you should be able to port it to older architecture.
We have one of those too, at Sandia National Labs.
Guess what the underlying system is? It's actually Plan 9, not Linux.
We have a 16-slot Coraid box full of 1 TB drives. It works very nicely
with our Plan 9 box... we use it for our archival storage system,
Venti.
John
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