Stephen Montgomery-Smith wrote:
I found these messages on my computer, which is running a very recent
RELENG_5. Is this bad? Does it indicate that the disk is failing?
Nov 3 07:35:48 cauchy kernel: ad4: FAILURE - READ_DMA
status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> LBA=145908831
Nov 3 07:35:51 cauchy kernel: ad4: FAILURE - READ_DMA
status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> LBA=145908863
Nov 3 07:35:55 cauchy kernel: ad4: FAILURE - READ_DMA
status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> LBA=145908895
Nov 3 07:35:59 cauchy kernel: ad4: FAILURE - READ_DMA
status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> LBA=145908895
It could be a problem with the disk, the cable, or possibly software.
Try smartctl -a /dev/ad4 as root to find out if the errors were recorded
by the drive.
Now is a good time to do a backup, just in case :)
--
</jcr>
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