On Fri, May 14, 2010 at 07:42:33PM +0200, Pieter de Boer wrote: > Hi list, > > I'm running FreeBSD 8.0-RELEASE-p1 on a Dell R300 which has a ICH9 > SATA controller on-board (do not have the RAID controller). > > The system has 2 disks in a gmirror setup. Every now and then, > probably under some load, one of the disks gets read or write > timeouts like: > May 5 03:01:37 aberdeen kernel: ad4: timeout waiting to issue command > May 5 03:01:37 aberdeen kernel: ad4: error issuing WRITE_DMA48 command > May 5 03:01:37 aberdeen kernel: GEOM_MIRROR: Request failed > (error=5). ad4[WRITE(offset=200404975104, length=16384)] > May 5 03:01:37 aberdeen kernel: GEOM_MIRROR: Device gm0: provider > ad4 disconnected. > > or: > > May 13 14:41:26 aberdeen kernel: ad6: TIMEOUT - READ_DMA48 retrying > (1 retry left) LBA=975513887 > > Sometimes the read/write succeeds after a few retries, but sometimes > it does not, so geom_mirror throws the disk out of the mirror. > > Tonight ad6 was thrown out of the mirror and ad4 then gave actual > read errors, resulting in a big mess :( > > My question: does anyone have experience with FreeBSD on a Dell R300 > or can anyone give me some help in trying to fix the timeouts?
Could you please do the following: - Provide output from "vmstat -i" - Provide output from "dmesg | grep -i ata" - Install ports/sysutils/smartmontools (5.40 or later) and provide full output from commands "smartctl -a /dev/ad4" and "smartctl -a /dev/ad6" -- | Jeremy Chadwick j...@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
