Re: Weird problem with gmirror - cannot add the Good disk when previously failed SATA disk is online

[Miroslav Lachman <000_(_dot_)_fbsd_(_at_)_quip_(_dot_)_cz>]

Achilleas Mantzios wrote:
> Hello,
> I run 7.1-PRERELEASE, its a home server.
> today morning after a power failure, the rebuild my root gm0 failed on disk ad4.
> The messages were:
>
> May 18 08:02:02 panix kernel: ad4: WARNING - WRITE_DMA UDMA ICRC error (retrying request) LBA=268091264
> May 18 08:02:08 panix kernel: drm0: <Intel i865G GMCH> on vgapci0
> May 18 08:02:08 panix kernel: info: [drm] AGP at 0xf0000000 128MB
> May 18 08:02:08 panix kernel: info: [drm] Initialized i915 1.5.0 20060119
> May 18 08:02:08 panix kernel: drm0: [ITHREAD]
> May 18 08:02:08 panix kernel: ad4: FAILURE - device detached
> May 18 08:02:08 panix kernel: subdisk4: detached
> May 18 08:02:08 panix kernel: ad4: detached
> May 18 08:02:08 panix kernel: GEOM_MIRROR: Device gm0: provider ad4 disconnected.
> May 18 08:02:08 panix kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad4 stopped.
>
> I read http://www.eztiger.org/2008/08/removing-and-re-adding-a-disk-in-gmirror/
> hoping that the rebuld failure was temprary
> and so i tried to just run 
> # gmirror forget gm0
> # gmirror insert gm0 ad4

The correct order of commands is:
atacontrol list
gmirror list

gmirror forget gm0
gmirror clear -v ad4
gmirror insert -v gm0 ad4


Miroslav Lachman
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