Re: Slow Disk access/No TC on Nemesis

From: Jo Even Skarstein <>
Date: Fri, 14 Nov 1997 13:02:22 +0100

On Fri, 14 Nov 1997, Michael A. White wrote:

> The drive has acted this way since I owned it, so I don't think a defrag
> will help. As for the re-partition, what difference would that make?
> Are IDE drives different from SCSI drives? I think my SCSI drive has 8
> kilobyte sectors, no matter the partition size.

AFAIK no partition can have more than 65536 sectors on TOS 4.04, so
you can do your own math :-) With 8K clusters that means max. 512Mb

The problem is that some partitioners (like HD-Drivers) like to use
*huge* clusters (e.g. 16K) even when it isn't necessary. To get
optimum performance you'll need a partitioner where you can specify
the cluster-size yourself, like SCSI-Tools.

But I don't think this is the cause for the slow drive, it could be
the drive itself. Have you tried other drives? The original drive in
my Falcon (a 240MB 2.5" Conner) was extremely slow, with
transfer-rates around 600-800Kb/s and average access-time around
70-130ms! Compare that to the 3-4Mb/s my Quantum Fireball does!

** Jo Even Skarstein
** beer - maria mckee - atari falcon - babylon 5
Received on fr. nov. 14 1997 - 20:13:00 CET

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