On Oct 9, 2005, at 5:42 PM, Bill Judson wrote:
It's weird, the situation...for Mac users, anyways:
IDE: expensive card, cheap drives
SCSI: cheap card, expensive drives
Not quite so simple.
The controller is only maybe 2x as expensive and is < $100 still.
Drives are way more expensive. I recently bought a Maxtor 200GB drive
for $60. It's a 7500 RPM 8MB cache system.
You can't touch a drive like that in SCSI for < $500, and then to get
full performance out of it, you need a REALLY expensive SCSI controller.
IDE is perfectly trustworthy. I help support ~300+ systems, Mac and
PC. EVERY one of them runs IDE drives. We get *maybe* a handful of
drive failures in a year.
I myself have had only one IDE drive fail. Dropping it three feet on
it's edge on a hard concrete floor will do that :-/
Used drives of questionable provenance will always be more
troublesome. Sure you can buy a bunch of used SCSI 18 and 36GB drives
out there, but crap expands to fill the available space.
It's vastly simpler and cheaper to buy more than one big IDE drive
and have a live backup. Run it as a mirrored raid and you'll always
have a backup. (This is doable in 10.4 at least and the RAID is
selectable as the startup.)
--
Bruce Johnson
This is the sig who says 'Ni!'
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