On Wed, 19 Jan 2005 15:13:01 -0600, Karl Denninger <[EMAIL PROTECTED]> wrote:
> I've got a 2 x SATA system here I'm playing with in preparation to move > over production to 5.x. > > These drives have been working under 4.x for quite some time - they're 250GB > Maxtor disks.... > > ad4: 239372MB <Maxtor 6B250S0/BANC1980> [486344/16/63] at ata2-master SATA150 > ad6: 239372MB <Maxtor 6B250S0/BANC1980> [486344/16/63] at ata3-master SATA150 > > The first disk runs nice and happy. > > The second does too, provided that the load isn't too high. If it is, then I > start to get DMA transfer errors, such as the following: > > ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> > LBA=543191 > GEOM_MIRROR: Request failed (error=5). ad6[READ(offset=278048256, > length=102400)] > GEOM_MIRROR: Device m0: provider ad6 disconnected. > ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> > LBA=300463 > ad6: TIMEOUT - READ_DMA retrying (2 retries left) LBA=90863 > ad6: FAILURE - READ_DMA timed out > ad6: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> > ad6: TIMEOUT - READ_DMA retrying (2 retries left) LBA=120663 > ad6: FAILURE - READ_DMA timed out > > I'm having a lot of trouble believing this is an actual disk problem. Among > other things, its happening at different places - not always at the same > block. I've got a few 1U Supermicro boxes running dual SATA drives: ad4: 78167MB <Maxtor 6Y080M0/YAR51HW0> [158816/16/63] at ata2-master SATA150 ad6: 78167MB <Maxtor 6Y080M0/YAR51HW0> [158816/16/63] at ata3-master SATA150 I've run into all sorts of problems with every one, and changing the IDE channel settings in the BIOS always fixes it. Which really annoys me, because I setup a new box, run it for a couple weeks, then the drives start getting flaky under load. Then I go change the setting in the BIOS (that I always forget to do on initial setup) and it's dead stable for months at a time. I've had the exact same problem with FreeBSD 5.3 and OpenBSD 3.5 as well. _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
