Re: SATA RAID 1 - which controller to pick?

From: v8625 (v8625_at_hotmail.com)
Date: 07/01/04 

Date: 1 Jul 2004 08:15:42 -0700

Not surprisingly, Adaptec provided the following answer on whether
they can provide either another prebuilt module or source code for
building my own:
"...the only prebuilt modules we have are posted on our website, also
we do not have source code for this as it is proprietary information."
Anyway, I always ask, just in case.
As for SCSI, I weaned myself off that back when fast IDE drives
appeared (ATA/100 and ATA/133) - they did RAID0 and RAID1 - good
enough for most solutions. SCSI is really an overkill for small
environments - any SCSI solution is still significantly more expensive
than SATA. And I don't expect it to come down any time soon. In fact,
I think SATA would continue to add speed and features (improved
signaling, native command queuing and other SCSI-like functionality)
and thus chip away at SCSI market from the low end.
Anyway, I am thinking if I have to reinstall the system - which is
what Adaptec guys originally suggested - I might as well get a new
Athlon-64 board with 4 on-board SATA inputs. Then again, I am not too
sure if the applications would work on 64-bit athlons, so maybe I'll
just fall back to 2.4.20-8 and save myself some time and effort (oh
yes, and about $750.00).
 

rmon90223@hotmail.com (Revo) wrote in message news:<d285a739.0407010023.63f04026@posting.google.com>...
> Yep, I was looking for the same thing to compile into my own kernel!!
> Unfortunately, no source is released by Adaptec. So I had to fall back
> to using the 2.4.20-8 drive for that kernel release. I don't really
> care as long as thethe only prebuilt modules we have are posted on our
   website, also we do not have source code for this as it is
proprietary
   information.
 drives don't crash. Since a newer kernel is just
> mostly for system patch issues. And right now, this SATA driver just
> isn't there yet.
>
> On the other hand!! I found out that if you buy the Adaptec RAID 2120S
> SCSI controller, and use a 2x SCSI drives mirror, it works PERFECTLY
> on the new Adaptec RAID 2120S Redhat 9.0 2.4.20-8 driver! The Bonnie
> I/O tester is still looping non-stop after 48 hours of continuous disk
> I/O testing. However, the price of that controller is much higher, as
> are the prices of the SCSI drives. It accomplishes our goal, but at a
> much higher price.
>
> It seems SATA is still too new to implement in production level
> environments.
>

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