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Date:      Thu, 31 Jul 2003 18:33:28 -0600
From:      <soralx@cydem.org.ua>
To:        freebsd-hackers@freebsd.org
Subject:   Re: Ultra ATA card doesn't seem to provide Ultra speeds.
Message-ID:  <200307311833.28209.soralx@cydem.org.ua>
In-Reply-To: <20030731105545.B85113@alpha.yumyumyum.org>
References:  <200307311455.h6VEtx5i088476@spider.deepcore.dk> <20030731105545.B85113@alpha.yumyumyum.org>

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> > Maybe not, but they do give a transferspeed from medium range and that
> > is what can be expected.
>
> Hmm, I guess not everyone does that. We have some seagates here at work we
> were wondering about because they seemed too slow, and we couldn't find
> anything aside from what we already knew... the tranfer speed of the
> SCSI interface, which is basically from drive cache to controller. That is
> unless the manufacturers hide the info somewhere so you really have to
> dig, which wouldnt' surprise me.

Example took me less than 64 seconds to find (for Seagate Barracuda IV):
http://www.seagate.com/cda/products/discsales/personal/family/0,1085,559,00.html
Look for 'Avg. Sustained Transfer Rate'. AFAIK, every manufacturer I know
gives the sustained transfer rate specs (which are sometime a bit too high than
in reality). If the specs are not specified, it'd be very suspicious, and I
would think 128 time before buying such drives.

31.07.2003; 18:28:06
[SorAlx]  http://cydem.org.ua/



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