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Date:      Mon, 16 Mar 2009 11:43:02 +0100
From:      "Daniel Eriksson" <daniel@toomuchdata.com>
To:        "FreeBSD Current" <freebsd-current@freebsd.org>
Subject:   RE: ZFS data error without reasons
Message-ID:  <4F9C9299A10AE74E89EA580D14AA10A635E68A@royal64.emp.zapto.org>
In-Reply-To: <49BD117B.2080706@163.com>
References:  <49BD117B.2080706@163.com>

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kevin wrote:

> Hi,
> Will any changes cause zfs data error?I find my disk data=20
> error without=20
> any reasons(shutdown or reboot  normally).disk was bought=20
> yesterday.sometimes it can be fixed with a zpool scrub.but=20
> mostly zpool=20
> scrub will return more errors.Even i restore all zpool from my=20
> backup,without 5 mins,zpool status shows data error and many checksum=20
> errors.

Is the drive connected to an "nVidia nForce MCP55 SATA300 controller"? I
have two machines with on-board MCP55 controllers. One of them works
perfectly, the other causes silent data corruption (each time I run a
zpool scrub it finds new checksum errors).

If you also have an MCP55 controller then maybe this is related.

/Daniel Eriksson



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