From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id mA8KZhhJ011521 for ; Sat, 8 Nov 2008 15:35:43 -0500 Received: from mail.knebb.de (mail.knebb.de [83.137.99.149]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id mA8KZSVc025363 for ; Sat, 8 Nov 2008 15:35:29 -0500 Received: from tp.knebb.de (p54BC4A50.dip.t-dialin.net [84.188.74.80]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mail.knebb.de (Postfix) with ESMTP id 88EA111830 for ; Sat, 8 Nov 2008 21:35:27 +0100 (CET) Message-ID: <4915F80E.40407@knebb.de> Date: Sat, 08 Nov 2008 21:35:26 +0100 From: =?ISO-8859-1?Q?Christian_V=F6lker?= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] pvmove and 100% IO Wait Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: LVM general discussion and development -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Yohoo! I've some issues with pvmove. It is very likely to appear during a pvmove operation for my server to spike to 100% IO waits. If this happens, no IO on the LVs is possible, even the rest of the server is accessible without any issues. I can't predict when it happens, but it happens... pvmove started. Some minutes or hours later the io wait on the server goes up to 100% (or 3 cores of the quad core are going to 100%). Running a RedHat EL 5.x (CentOS) with all current updates. The storage consists of two 3Ware 9500 PCI-X, a USB-SATA drive and three disks connected to the local SATA controller. I can't see anything relevant in the logfiles. When the CPU is up, I have to reset the server as any operation on the LV will never finish :-( Any clues? Christian Any clues? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFJFfgN0XNIYlAXmzsRAih2AKCk2ItzDHX0s4n+pCHdnom9wh4WQgCeOlba PDfvqDf1WmgYDmPbB49Ltso= =nvvi -----END PGP SIGNATURE-----