Too many uncorrectable read errors with atang
sos at spider.deepcore.dk
Fri Nov 7 10:33:08 PST 2003
It seems Kris Kennaway wrote:
-- Start of PGP signed section.
> Since upgrading the bento package machines to -current I am getting
> a lot of the following errors:
> ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE>
That does look like a valid error condition from the drive...
> 1) All my drives have performed mass suicide at once
You know, with deathstar's you cant really rule that out :)
> 2) ATAng is detecting errors that the ATAog did not
That is true, the error detection is better in ATAng.
> 3) ATAng is not trying as hard as ATAog to recover from the errors
> from the crappy drives
Neither ATAog nor ATAnr retried uncorrectable errors...
> 4) ATAng has a bug on this hardware.
That we cant rule out, and it probably likely..
> Furthermore, I'd like to know why the panic occurred above.
Is this on a brand new -current ? lots of things that could
cause this has been fixed...
More information about the freebsd-current