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[filmscanners] Re: Re:Computer size: RAID



Hi John,
        Provided you don't start using your hard drives after running out of
RAM I don't think it is worth the extra effort and expense of installing
scsi RAID systems. I have a lowly Athlon 1Ghz and two 20GB 7200 rpm hard
drives with 896mb of RAM. Opening a 60mb file takes 5 seconds.  That's quick
enough for me. I do run out of RAM occasionally but it is rare, 1.5Gb of RAM
should prevent that from happening. I agree with the previous suggestions of
switching off what you don't need but another idea is to have one partition
purely loaded with your OS and PS and image related programs. You will find
it to be very quick. Incidentally, I have found that XP (Pro) opens files
from my hard drive much faster than W98SE.

Geoff
www.geoffmurray.com

----- Original Message -----
From: "John Matturri" <jmatturr@earthlink.net>
To: <geoffmurray@primus.com.au>
Sent: Sunday, May 12, 2002 3:07 AM
Subject: [filmscanners] Re: Re:Computer size: RAID


> > To carry disk performance to the max, go with
> > a striped SCSI array of 15000 RPM drives!
>
> Very expensive, though.  Also, one thing tends to lead to another:  If you
> use 15000 RPM drives, you soon have to start worrying about keeping the
> whole machine from melting down in its own heat.
>

I'm getting a system with 1.5 GB of RAM and 2 80MB 7200
drives (CPU: Athlon 1800+). Aside from possible
video-editing, would there be a reason to set the drives up
as RAID-0 (which is supported on the motherboard I'm using
so doesn't add to the cost). Opening and saving 128MB files
might be faster but would PS in general be faster given that
I assume there would be little need to go to the scratch
disk with that much RAM. Trying to figure out whether any
increased performance would be worth the loss of data if one
of the drives goes. On my current system I use the second
disk for daily incremental back-ups (without full mirroring)
which would be useless with the level 0 RAID. How, also,
does RAID interact with PS's desire for partitions?

As for any future large video editing project it might just
be better to dedicate a couple of drives in RAID to the
editing at that point.

Comments on my reasoning on this (or lack of it)?

--
John Matturri
words and images: http://home.earthlink.net/~jmatturr/


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