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Date: Tue, 8 Dec 2009 16:00:09 GMT
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To: freebsd-bugs@FreeBSD.org
From: Yuri Gorchakov <yuri.gorchakov@ittomsk.ru>
Cc: 
Subject: Re: kern/135408: [aac] Adaptec 5405 RAID controller hanging under
 high load +suggested fix
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The following reply was made to PR kern/135408; it has been noted by GNATS.

From: Yuri Gorchakov <yuri.gorchakov@ittomsk.ru>
To: bug-followup@FreeBSD.org, freebsdusb@bindone.de
Cc:  
Subject: Re: kern/135408: [aac] Adaptec 5405 RAID controller hanging under
 high load +suggested fix
Date: Tue, 08 Dec 2009 21:38:08 +0600

 -----BEGIN PGP SIGNED MESSAGE-----
 Hash: SHA1
 
 Hi all,
 
 I'm still having this issue with the controller, latest firmware (5.2-0
 (17517)) and drivers (2.2-8 (17517)) don't fix the problem, but Adaptec
 suggested me to turn off write cache (switch it into write throught) on
 the controller (smth like arcconf SETCACHE 1 LOGICALDRIVE 0 wt) - so I
 did that and now I'm able to highly load the server with no problems.
 Current uptime after this change is 15 days.
 I didn't measure the performance penalty though.
 - --
 С уважением,
 Юрий Александрович Горчаков
 директор "Информационные технологии - Томск"
 
 Адрес:	634050, г.Томск, пер.Нахановича, д.12, оф.502
 Тел.:	+7 (3822) 332-382
 e-mail:	info@ittomsk.ru
 	yuri.gorchakov@ittomsk.ru
 www:	http://ittomsk.ru
 PGP:	http://ittomsk.ru/yuri.gorchakov@ittomsk.ru.pub.asc
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