Bug#539059: Suspending SATA hard disks degrades software RAID 1

To: 539059@bugs.debian.org
Subject: Bug#539059: Suspending SATA hard disks degrades software RAID 1
From: "Felix Bünemann" <felix.buenemann@googlemail.com>
Date: Thu, 15 Apr 2010 16:59:06 +0200
Message-id: <5DD614CC-21AA-4963-BCEB-ADE405B756BC@googlemail.com>
Reply-to: "Felix Bünemann" <felix.buenemann@googlemail.com>, 539059@bugs.debian.org

I'm also seeing this problem on 2.6.31 with sw raid5 and sata drives. Sending drives in the raid to sleep via hdparm -Y causes all drives in the raid to fail simultaneously, requiring a stop and forced reassembly of the raid to bring it back online.

So I'd be interested aswell, if an upstream ticket exists for this problem.

Here is a log of what happened: http://pastebin.com/Vb3LMc38

Note this is on an NVidia ION/Atom system using the ION sata ports.

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