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Date:      Tue, 24 Jul 2007 09:59:20 +0200
From:      "Daniel Eriksson" <daniel_k_eriksson@telia.com>
To:        "FreeBSD Stable" <freebsd-stable@freebsd.org>
Cc:        Bill Swingle <unfurl@dub.net>
Subject:   RE: problems with Hitachi 1TB SATA drives
Message-ID:  <4F9C9299A10AE74E89EA580D14AA10A61A17B7@royal64.emp.zapto.org>
In-Reply-To: <46A54B6F.9010100@dub.net>
References:  <46A54B6F.9010100@dub.net>

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Bill Swingle wrote:

> I have a fileserver that currently has a 4-disc raid connected to an
> IDE 3ware card. I had hoped to replace this dying system with a pair
> of synchronized 1TB SATA drives. When trying to newfs them both
> eventually failed with DMA READ or WRITE timeouts. Here's some infos:

A few things to check:

* Is your PSU powerful enough? (Test with the old RAID-5 set
disconnected or with a different PSU.)
* Does all fans in the box spin easily? (If the bearings of the old
drives and fans are giving out they can draw a lot more power.)
* If you disconnect ad4, does ad6 work fine by itself?
* Does the problem go away if you replace the SATA cables?
* Install smartmontools from ports and run a long selftest on both
drives. (Or get the drive tools from Hitachi and run a full test from
DOS.)
* Is ACPI enabled and does 'vmstat -i' show any IRQ sharing? Maybe try
to move some PCI cards around.

/Daniel Eriksson



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