gmirror or ata problem
Oliver Fromme
olli at lurza.secnetix.de
Tue Feb 13 18:28:50 UTC 2007
Jeremie Le Hen wrote:
> Oliver Fromme wrote:
> > However, the strange thing is that _no_ ATA errors were
> > logged at all previously. If gmirror disconnects a drive
> > because of ATA trouble (i.e. a read/write error), I would
> > expect that the ATA driver should report that read/write
> > error, shouldn't it?
>
> I can't remember if I had such messages. However I suspect the
> following messages to be issued by the ata layer:
>
> % Jan 29 19:20:26 pluto kernel: ad1: FAILURE - device detached
> % Jan 29 19:20:26 pluto kernel: subdisk1: detached
> % Jan 29 19:20:26 pluto kernel: ad1: detached
Well, yes. Sorry for being unclear. I meant the disk
driver, not ATA in general. I expected to get a bit more
than the simple word "FAILURE" from a UNIX system. ;-)
Typically a read or write error should be reported (along
with the block number), or a time-out, or a DMA error, or
whatever. Anything. But a little bit more than just
"FAILURE".
> The following gmirror error messages is then an expected
> consequence.
Yes, that's clear.
Best regards
Oliver
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