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Date:      Fri, 18 Apr 2008 10:56:47 +0200
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-current@freebsd.org
Subject:   Re: gmirror problem with HP Proliant ML110 G5
Message-ID:  <fu9nof$a6r$1@ger.gmane.org>
In-Reply-To: <20080417171439.M22551@bellera.cat>
References:  <20080417171439.M22551@bellera.cat>

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[-- Attachment #1 --]
Josep Pujadas i Jubany wrote:
> Hello!
> 
> Two weeks ago I installed FreeBSD 7.0 in a new HP Proliant ML110 G5 machine 
> and I configured ad0 for using gmirror, waiting for a second disk.
> 
> I just added a second hard disk arrived today from HP ...
> 
> # gmirror insert gm0 /dev/ad2
> 
> I'm having DMA errors:

> Apr 17 17:39:28 mail_2 kernel: ad2: TIMEOUT - WRITE_DMA retrying (1 retry 
> left) LBA=268281088
> Apr 17 17:39:46 mail_2 kernel: ad2: TIMEOUT - WRITE_DMA48 retrying (1 retry 
> left) LBA=269601536
> Apr 17 17:39:46 mail_2 kernel: ad2: FAILURE - WRITE_DMA48 
> status=51<READY,DSC,ERROR> error=10<NID_NOT_FOUND> LBA=269601536
> Apr 17 17:39:46 mail_2 kernel: GEOM_MIRROR: Synchronization request failed 
> (error=5). ad2[WRITE(offset=138035986432, length=131072)]
> Apr 17 17:39:46 mail_2 kernel: GEOM_MIRROR: Device gm0: provider ad2 
> disconnected.
> Apr 17 17:39:46 mail_2 kernel: GEOM_MIRROR: Device gm0: rebuilding provider 
> ad2 stopped.

It looks like a hardware failure, either:
- bad drive
- bad cables
- bad or insufficiently powerful power supply

What controller are you using?


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