Date: Mon, 14 Jun 2004 14:39:38 +0100 From: Jason Thomson <jason.thomson@mintel.com> To: so14k@so14k.com Cc: freebsd-stable@freebsd.org Subject: Re: 3ware 7506, FreeBSD 4.x, Maxtor Disks & SMART Problems. Message-ID: <40CDAA9A.1090507@mintel.com> In-Reply-To: <52270.24.8.51.173.1087217572.squirrel@webmail.liquidneon.com> References: <40CD80F1.6020107@mintel.com> <52270.24.8.51.173.1087217572.squirrel@webmail.liquidneon.com>
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We're not using the ata driver - it's the twe driver - I believe the SMART events are supposed to be handled by the controller firmware. (Which should then report back to the FreeBSD driver when things go wrong). Hmmm - I've just done a little more research, and it appears that my understanding of SMART is flawed - the drive just makes the information available - and doesn't actively signal the controller. The controller / OS / SMART software has to read the SMART status and then act accordingly. Maybe it's nothing to do with SMART, and instead it's just something wrong with Maxtor disks. Is anyone else aware of problems with Maxtor disks? (I must confess to seeing NMIs raised on a DELL box with the ServerWorks CSB6 Chipset with Maxtor's 160GB drives. I assumed that it was the ATA controller. We worked round it by using slower DMA modes. Maybe it was the disks.) so14k@so14k.com wrote: > > IIRC, the ATA driver in 4.x (pre ATAng) doesn't support S.M.A.R.T. > Unfortunately you'll need to run 5.2-CURRENT for that. > > > Regards, > Brad Davis > >
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