Date: Wed, 25 Oct 2000 10:15:30 +0200 (CEST) From: Soren Schmidt <sos@freebsd.dk> To: Thierry.Herbelot@alcatel.fr Cc: stable@FreeBSD.ORG Subject: Re: IDE drives to avoid ? [was : Re: ATA problems (rehashed)] Message-ID: <200010250815.KAA41239@freebsd.dk> In-Reply-To: <C1256983.002A588C.00@frmta003.netfr.alcatel.fr> from "Thierry.Herbelot@alcatel.fr" at "Oct 25, 2000 09:42:30 am"
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It seems Thierry.Herbelot@alcatel.fr wrote:
> Hello,
>
> I'm seeing the same kind of problems with Western Digital drives :
> ad0: 6149MB <WDC WD64AA> [13328/15/63] at ata0-master using UDMA33
>
> I've switched to PIO4 access, but this is not the correct solution.
>
> Is there something I could do to be sure of who is to blame (the disk firmware ?
> the optimized IDE ata driver ?)
Hmm, both probably :)
Anyhow, I would avoid old Quantum/Maxtor/WDC drives as many of their models
are know to have bugs in the DMA support. For brand new drives there are
still some Maxtor/WDC models that are flaky..
The only drives I can recommed are IBM's, but beware the new DTLA series
are so fast that some old controllers can have problems with them.
And as always I'm interested in reports/patches to the driver to make
as many drives/controllers work proberly.
PS: I have just committed a huge update to the ATA code on stable,
please try that out as it might fix some of the problems
(and hopefully not introduce new ones)...
-Søren
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