From owner-freebsd-questions@FreeBSD.ORG Sun Jul 9 06:50:05 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 48C4816A4DD for ; Sun, 9 Jul 2006 06:50:05 +0000 (UTC) (envelope-from jerlique@webscene.com.au) Received: from bang.esc.net.au (mx1.esc.net.au [203.25.185.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id BF80243D46 for ; Sun, 9 Jul 2006 06:50:04 +0000 (GMT) (envelope-from jerlique@webscene.com.au) Received: from localhost (localhost [127.0.0.1]) by bang.esc.net.au (Postfix) with ESMTP id 3C4475A6ACB for ; Sun, 9 Jul 2006 16:20:02 +0930 (CST) Received: from bang.esc.net.au ([127.0.0.1]) by localhost (bang.esc.net.au [127.0.0.1:10024]) (amavisd-new) with ESMTP id 43570-09 for ; Sun, 9 Jul 2006 16:20:00 +0930 (CST) Received: from WKSTN501 (lnk6.adl5.adsl.esc.net.au [210.9.186.6]) by bang.esc.net.au (Postfix) with ESMTP id DCE285A6ABC for ; Sun, 9 Jul 2006 16:19:59 +0930 (CST) From: "Jerlique Bahn" To: Date: Sun, 9 Jul 2006 16:19:59 +0930 Message-ID: <010201c6a323$e5a7cc80$0101a8c0@WKSTN501> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 thread-index: AcajI+VKU8HDugoNSwm/2KCTD7UJ5w== X-Virus-Scanned: by amavisd-new Subject: lost+found X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 09 Jul 2006 06:50:05 -0000 Hello, If I pull the power on my server whilst its doing heavy IO, should I get files in lost+found if my raid card has battery backed cache? I was under the understanding that the file operations were atomic, and hence freebsd's file system should have no corrupted files on the reboot. The raid card says that it is flushing the cache of the card, yet freebsd still experiences the corrupt files. What should I be looking for? I would like to also know how to turn off (or check) caching on the physical disk itself. JB