On Sun, 21 May 2000, David Kelly wrote:
Kenneth W Cochran writes:
Hello -scsi,
(Yes, the old SCSI vs IDE flamewar, but I'd like to avoid that,
thank you... :)
[...]
1. What's going on "here" in M$/Win9x?
I think your Win9x friend should look into the caching mode page
settings on his new IBM drive. New IBM drives that I've seen have
shipped with caching disabled. Its not fair to compare unless the
caching is the same on all.
Given the differences in elapsed time that has been reported:
4 min for old IDE
8 min for old SCSI
> 15min for new SCSI
I am not sure that write behind caching by the drive is the issue.
Btw, an O/S is also supposed to cache disk data and sort requests.
2. What does this imply (or not imply) for FreeBSD?
It means to accurately apply it to FreeBSD you have to try it.
And I bet that either differences would be just reversed, or issue,
if any, would be quickly fixed.
Gérard.
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4 messages in org.freebsd.freebsd-scsiRe: SCSI 2x-4x slower than IDE? 