Throughput speed is superior with SCSI is a mostly true statement. You can
build IDE systems now that best some SCSI systems.
You lose the redundancy when you go to IDE unless you get a mirroring IDE
controller.
It is true that IDE Drives are less expensive. Some people may make the
argument that IDE drives are not as robust as SCSI. I tend to believe that
server-style SCSI drives are engineered to run longer always-on. you can
always look at the MTBF (Mean time between failure) rating on a drive to see
how long it is rated to last. Most vendors will have a spec sheet that
describe the ideal operating environemnt, MTBF, cache size, seek rate etc.
Is this a production environment? Is the security of your job connected to
it? If you have to go IDE Get a mirroring IDE controller, and two big
reliable _insert_other_spec_requirements_here IDE drives from a reliable
manufacturer.
BTW, have you checked the used market? I got a Compaq storage enclosure
fully loaded for about $ 4k a couple years ago
('http://www.serverworlds.com/') around 125 GB of RAID 5 space and I even
have an online spare.
-Nate
-----Original Message-----
From: Danna D. Swain [mailto:[EMAIL PROTECTED]
Sent: Friday, July 11, 2003 1:01 PM
To: SQL
Subject: RE: advice
OK, so if I just switch the RAID controller to an IDE controller, is there a
downfall to IDE as opposed to SCSI. We are trying to increase our hard
drive space and the difference of pricing is the factor here!
-----Original Message-----
From: Nathan Smith [mailto:[EMAIL PROTECTED]
Sent: Friday, July 11, 2003 1:53 PM
To: SQL
Subject: RE: advice
I assume you are losing the RAID controller and considering software
mirroring?
Don't do it if you can avoid it. I had the startup disks on my Exchange
server software mirrored in NT. Well, wouldn't you know it, the sectors
with the mirror information were some of the ones to go bad? Couldn't break
the mirror, couldn't recover gracefully, ended up doing a "disaster
recovery" style system restoration.
If you want redundancy stay with some kind of hardware mirror or RAID.
There are some IDE mirroring controllers that different reviewers have had
good impressions upon using.
-Nate
Nathan Smith McKee, Voorhees & Sease, P.L.C. 515.288.3667
-----Original Message-----
From: Danna D. Swain [mailto:[EMAIL PROTECTED]
Sent: Friday, July 11, 2003 12:24 PM
To: SQL
Subject: advice
I am currently running SQL Server 2000 and ColdFusion MX on a DELL server
with Windows 2000 Server, Raid Controller with 10,000 RPM SCSI hard drives.
We are considering switching to 7200 RPM IDE hardrives and the use of
mirroring to replace the raid controller...Is there any references that you
can share that would enlighten me on the pros and cons of both. Thanks.
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