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Date:      Mon, 27 Aug 2018 12:46:36 +0100
From:      tech-lists <tech-lists@zyxst.net>
To:        ixbug@riseup.net, FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: disk or cable error? (CAM status: ATA Status Error)
Message-ID:  <dd5dbfd6-4429-d110-f83f-4b16f8d27c14@zyxst.net>
In-Reply-To: <c9124cc8-7be9-a0ad-62f3-2ebebbd00a9b@riseup.net>
References:  <c9124cc8-7be9-a0ad-62f3-2ebebbd00a9b@riseup.net>

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On 26/08/2018 16:01, ixbug@riseup.net wrote:
> Do any of these errors provide hints as to whether this is a disk
> error affecting both at the same time or broken cable? (both disks
> are connected to the mainboard via the same cable)

these values:

5 Reallocated_Sector_Ct
196 Reallocated_Event_Count
197 Current_Pending_Sector
198 Offline_Uncorrectable

are all zero for both disks, so if these remain zero after a successful 
long test with *no LBA errors* then that would seem to me at least to 
indicate there's no problems with the disks themselves. If, in the face 
of those results, this persisted:

> (ada1:ahcich1:0:0:0): WRITE_FPDMA_QUEUED. ACB: 61 08 90 a4 aa 40 1d 00 00 00 00 00
>  (ada1:ahcich1:0:0:0): CAM status: ATA Status Error
>  (ada1:ahcich1:0:0:0): ATA status: 41 (DRDY ERR), error: 10 (IDNF )

then yeah I'd say bad cable/bad interface
-- 
J.



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