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Date: Fri, 22 May 2015 14:29:53 -0500
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From: Rick Romero <rick@havokmon.com>
To: freebsd-fs@freebsd.org
Subject: Re: zpool on Dell MD3000 causes frequent hangs
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  Quoting Thomas Johnson <tommyj27@gmail.com>:

> Hello,
>
> I am trying to track down an ongoing issue that I've been having, and
> looking for any suggestions on a possible cause, or suggestions on how I
> might troubleshoot further.
>
> The issue seems to be related to a Dell MD3000 storage array, which
> contains a zpool. It seems that the host attached to the array will
> occasionally hang, usually during periods of high disk activity
> (annoyingly, usually about 0300).

Hi Thomas,

You might want to try downgrading the firmware.  The latest firmware on
those LSI controllers really sucks.

Rick