From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (mx1.redhat.com [172.16.48.31]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id j9SHZ8V27752 for ; Fri, 28 Oct 2005 13:35:08 -0400 Received: from volumehost.com (IDENT:bMWu+SkI6I8DgEcqrmFxyp6EqoFP0flU@adsl-69-154-123-201.dsl.fyvlar.swbell.net [69.154.123.201]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id j9SHZ2tw021305 for ; Fri, 28 Oct 2005 13:35:07 -0400 Received: from volumehost.com (localhost.localdomain [127.0.0.1]) by volumehost.com (8.12.8/8.12.5) with ESMTP id j9SHYuUN008331 for ; Fri, 28 Oct 2005 12:34:56 -0500 Received: (from apache@localhost) by volumehost.com (8.12.8/8.12.8/Submit) id j9SHYu5Z008329 for linux-lvm@redhat.com; Fri, 28 Oct 2005 12:34:56 -0500 Message-ID: <1130520895.4362613f9fc02@webmail.volumehost.com> Date: Fri, 28 Oct 2005 12:34:55 -0500 From: Zac Slade Subject: Re: [linux-lvm] Problem with lvm2 and softwareraid References: <43623017.7080906@evva.com> In-Reply-To: <43623017.7080906@evva.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Quoting Johannes Ullmann : > Hello! > > I'm building a backup to disk system and i have strange problem with lvm > on top of 2 software raid 5 devices. > Each SW Raid-5 has 7x400GB HDDs (=2,4TB). On top of these two SW Raid > devices I created one big LV with 4,8TB. > I use Reiserfs as filesystem. I worked fine while the disk usage was > below 1,5TB, above that, the Filesystem was destroyed. I tried the same > with ext3 and had the same results. So I't not the Filesystem. I also > checked the Softwareraid and the LV for any Problems but i haven't found > anything. > After reading many Mails/howtos/man-pages I quess that LVM can't handle > PV's which are larger than 2TB is this correct? > I haven't found anything in the documentation about the maximum PV size. Yes and No. There was a max pv size. If you use metadata format for version 1 it has a hard limit of 2 TiB for a pv size. Using metadata format version 2 it is an unsigned long int so the max pv size is 4 exabytes in length. If you feel that the pv size is holding you back you can force metadata version 2 when you execute pvcreate (e.g. pvcreate -M1 for metadata version 1 or pvcreate -M2 for metadata version 2). > thanks for any help. I hope that helps. I can't imagine it actually being in reiser so I'd try recreating the pvs. Zac Slade krakrjak@volumehost.com ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/