Disk errors when copying
Ted Mittelstaedt
tedm at toybox.placo.com
Fri Sep 7 18:51:23 PDT 2007
> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org
> [mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Richard Tobin
> Sent: Wednesday, September 05, 2007 3:03 PM
> To: freebsd-questions at freebsd.org
> Subject: Disk errors when copying
>
>
> When copy between disks (ad10 ->ad8), I get errors:
>
> ad10: WARNING - READ_DMA48 UDMA ICRC error (retrying request)
> LBA=435128800
> ad10: FAILURE - READ_DMA48 status=51<READY,DSC,ERROR>
> error=10<NID_NOT_FOUND> LBA=435128800
> g_vfs_done():ad10s2g[READ(offset=175562145792, length=131072)]error = 5
>
> I don't get these errors just reading the data from ad10. Is this
> some kind of system error rather than a bad disk? Is it a known problem?
>
Yes it is a known problem. It does not happen with most combinations
of drives and controllers. You need to exhaustively document the
motherboard/controller/hard disk and put it into a PR and file it
so that the developer can add your combo into his database. The more
of these that are documented the quicker that a coorelation is going
to show up and get fixed.
Ted
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