[mythtv-users] Should I use LVM on this new raid?

Jay R. Ashworth jra at baylink.com
Wed Sep 26 21:37:33 UTC 2007

On Tue, Sep 25, 2007 at 10:21:59PM -0600, Brett Kosinski wrote:
[ quoting me: ]
>      In fairness, while Seagate IDE drives are very good, even I don't
>      expect them to run 24/7/365/100% duty.
>      The SCSI drives cost 3 times as much precisely *because* they are, in
>      fact, designed to run at pretty close to 100% duty cycle for the entire
>      5 years.
>    Bah, if you ask me, that's just marketing BS.  Recent studies by Google,
>    among others, have shown that a) SCSI drives are no more reliable than ATA,
>    and b) "enterprise" rated drives aren't any better, either.

My experience doesn't agree with that, though I haven't *read* the
Google paper (I do know of it, just never got round to it).

>    Basically, there's no magic bullet.

No one said there was a magic bullet.

But 500GB IDE == $109 and 142GB SCSI == $380 isn't magic bullet
territory, and the drive adapter isn't *that* much different -- and the
build quantites are within an order of magnitude, so it's not economy
of scale, either, I don't think.

I am forced to conclude that my personal experience (SCSI drives last
longer in real, hard use) correlates with the relative pricing for a
reason, Google's research notwithstanding.

-- jra
Jay R. Ashworth                   Baylink                      jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com                     '87 e24
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274

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