On Wed, 27 Jun 2001, Tom Strickland wrote:
>Date: Wed, 27 Jun 2001 11:40:42 +0000
>From: Tom Strickland <[EMAIL PROTECTED]>
>To: amanda <[EMAIL PROTECTED]>
>Subject: scsi card for dat drive on linux
>
>In my previous post I mentioned that we're looking to get an HP
>Surestore. The suppliers said that nothing less a rather expensive
>Adaptec card would do. If we need to buy an expensive Ultra-Wide card,
>we will. I would have thought that it was overkill for the speed that
>such a drive can manage? Am I missing something? Are the lower priced
>cards of such inferior quality that it would be a mistake to buy them?
>BTW - no SCSI hard drives in use at the moment - cannot afford them.
Well, one thing I learned is if your device is an UltraWide, and your
interface card is a slow-narrow, you'll have to buy expensive adapters
and cables to connect them together. The costs of these additional
items and the instability they can add to your system (ie in time
debugging the scsi chain, having the connectors fall off the back of the
card due to the extra weight, etc) can drive your costss beyond what
the UltraWide card would have cost you in the first place.
I had to run a Scsi2 tape from a Scsi1 controller at a previous job,
and even that small step was a pain. The on-device terminators didn't
work and I had to add a second external terminator. The whole chain
tended to hang and I'd have to powercycle the whole box to free it.
(Luckily the system itself was IDE-disk based so I could always
gracefully unmount everything except the scsi holding disk.
--
Joi Ellis
[EMAIL PROTECTED], http://www.visi.com/~gyles19/
