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Date: Tue, 02 Feb 2010 12:40:25 +0900
From: Tejun Heo <tj@...nel.org>
To: Chandra Nepali <edu4madh@...il.com>
CC: linux-kernel@...r.kernel.org
Subject: Re: port multiplier problem
Hello,
On 01/22/2010 01:51 AM, Chandra Nepali wrote:
> I have a disk array of 12 disks. The interface card has two sil3726 port
> multiplier for 10 disks (5 disks in each port multiplier) and 2 direct
> sata connectors. The host controller is sil3124. It was connected to
> suse 10.4 and working fine.
Wasn't 10.3 the last of 10 series? After that it was 11.0. What's
the version of the kernel?
> There was a high voltage accident (high voltage to disk array only, not
> computer) and because of that we replaced the power supply of this disk
> array. Now, we are getting some problem, disks are not being
> recognized,.
Ouch...
> So, I connected it to Fedora 12 (To correct if it is
> because of some bugs) with driver sil24. Here are few things that I have
> tested.
>
> 1) If I connect only one disk to direct sata connector, it works fine.
> 2) If I connect two disks to both direct sata connectors, it won't work.
> 3) If I connect one disk to one direct sata and one disk directly to
> host controller, it works.
What do you mean by 'direct sata'? How is it different from 'directly
to host controller'?
> 3) If I connect one or more disk to PM, it won't work.
> 4) If I connect one disk to direct sata and one to PM, it won't work.
Maybe the PMP is fried?
Thanks.
--
tejun
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