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Re: Time to upgrade...From: Shawn Hogan Date: Monday, May 10, 1999
Time: 1:04:25 pmSean Larabee wrote:
>Well, after the most annoying NT Server install of my life and a few
>Microsoft induced crisises, I finally got to try a test upgrade on the
>PII. It took about an hour and fifteen minutes. Feels about right
>compared with the times we are seeing on the P166.
>
>The newer IDE drives and interfaces are giving the SCSIs a run for the
>money with regards to both performance and CPU sucking. Many are now
>benchmarking (for what that is worth in the real world) at or better than
>SCSIs.
>
>But yeah, the current server and the test box I just played with are both
>IDE.
>
>I take it there is no hidden Super Rebuild Indexes button that will cut
>our upgrade times in half? Arguing from personal incredulity is not
>convincing, but I have a hard time believing a G3-333 is doing much larger
>upgrades in half the time due to raw computing power alone.
Well, I would say that it's a combo of a faster CPU + Ultra2 SCSI + high
performance SCSI drive.
SCSI vs. IDE goes beyond the CPU utilization and raw speed benchmarks...
If you are making large, sustained reads/writes, the newer
IDE/controllers are comparable to SCSI. Unfortunately, in real-world
that is rarely the case. With servers in particular, it's much more
common to have many tiny read/writes, which is where SCSI makes a
noticable difference. SCSI controllers have a better queuing/buffer
system than IDE controllers (at least what I've seen). So when making
thousands of small read/writes (such as with a web server, or upgrading
Optigold ISP), the IDE controller is going to be a bottleneck when
compared to a SCSI controller.
So yes, as I'm sure you know, benchmarks can be pretty much made to look
like anyone has an advantage. And yes... IDE is comparable to SCSI
(speed-wide at least) if you are making large sustained read/writes, but
not really with tons of smaller ones.
Aside from that, I don't know mcuh. :-) I'm not a hardware guy, nor do
I ever aspire to really be one. I just know what I read and what I
experience in the real world.
- Shawn
-------------------------------
Shawn D. Hogan
President, Digital Point Solutions
http://www.digitalpoint.com
(619) 452-3696
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