On Thu, 4 Aug 2011, Edward Ned Harvey wrote:
From: [email protected] [mailto:discuss-
[email protected]] On Behalf Of Edward Ned Harvey
I suppose I'll have to look again. Perhaps it was as simple as this:
http://www.scsita.org/serial-storage-wire/images/it24fig1.jpg
I just looked closely at this again today, and I am happy to say my faith in
humanity is restored. ;-) This is totally benign. The world is good.
hehehhe
You cannot plug a SAS drive into a backplane that only supports SATA.
That's the only restriction. No problem.
I don't know why you say this. Once you have purchased the special SAS
cable, one end plugs into the special SAS socket. But the other end plugs
into either a SAS or SATA socket on a controller (because SAS controllers
have to support both), even though the drive will only work with a SAS
controller. So the special socket has merely moved the mismatch problem
one cable closer to the controller.
Oh, I see it about backplanes that don't use a cable. So they solve the
problem for a small segment of the market - the segment that has the
skills to do the right thing anyway.
Daniel Feenberg
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