10 Aug
2012
10 Aug
'12
10:49 a.m.
On 10 Aug 2012, at 18:18, David Riley wrote:
They are nicely cross-compatible, but it is worth
noting that the
fast/wide LVD (low-voltage differential) drives are totally
incompatible with anything else, much like the HVD is incompatible
with single-ended signaling. Otherwise, 68-pin and 50-pin are
pretty much interworkable, and the 80-pin SCA is just a hot-swap
socket with power pins in it.
It depends on the drive. I've used LVDs on SE setups, they work if you
get the termination right. Some even have a jumper to force SE mode.
Someone more versed in SCSI than I might be able to
answer this a
little better, though: what's the major difference between SCA and
SCA2? I've found scant information on it, but I have a feeling
it's what's keeping my SCA adaptor from working with my SCA disks
(one of them is SCA2, and I can't remember which).
Is SCA2 Fibre Channel SCA (much narrower connector) or am I way off?
--
Mark Benson
http://DECtec.info
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