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 m0SLn6pK031190 for ; Mon, 28 Jan 2008 16:49:06 -0500 Received: from carlit.cesca.es (carlit.cesca.es [84.88.0.2]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id m0SLmTQ8027706 for ; Mon, 28 Jan 2008 16:48:29 -0500 Received: from carlit.cesca.es (localhost [127.0.0.1]) by carlit.cesca.es (Postfix) with ESMTP id D312D332129 for ; Mon, 28 Jan 2008 22:48:23 +0100 (CET) Received: from [213.97.212.36] (36.Red-213-97-212.staticIP.rima-tde.net [213.97.212.36]) by carlit.cesca.es (Postfix) with ESMTP id 5B13933210D for ; Mon, 28 Jan 2008 22:48:23 +0100 (CET) Message-ID: <479E698C.10204@cesca.es> Date: Tue, 29 Jan 2008 00:47:24 +0100 From: Jordi Prats MIME-Version: 1.0 Subject: Re: [linux-lvm] LVM limits? References: <479DAD35.1080209@cesca.es> <479E2BEF.1090703@cesca.es> <1201541894.30560.24.camel@behemoth.csg.stercomm.com> In-Reply-To: <1201541894.30560.24.camel@behemoth.csg.stercomm.com> Content-Transfer-Encoding: 7bit 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 Hi, I'm the system administrator of PADICAT (http://www.padi.cat). It collects Catalan (http://en.wikipedia.org/wiki/Catalonia) web sites to provide permanent access to them (http://www.padi.cat/en/quees.php). It's equivalent to Internet Archive (http://www.archive.org) but for a particular culture. Our software developers require us to have one large file system, actually a single directory, with all this historically-classified web sites on a gziped file. I'm currently studying lustre and other HPC-related file systems to get this large file system, but by now I have ext3 as our file system. Next Monday I'm planning to extend it to 3TB o 4TB, so I'm currently researching for restrictions because during next month I'll have between 3TB to 4TB more to add: so, it will become a 8TB file system. Last time I fsck my 2'1TB file system I spend about 2 hours. Anyway, I'm also curious about the maximums :P Thanks, Jordi Chris Cox wrote: > On Mon, 2008-01-28 at 20:24 +0100, Jordi Prats wrote: >> Hi all, >> I found on a webpage this two sentences: >> >> - The combination of 32-bit CPU and Linux kernel version 2.6.x, the >> limit of logical volume size is maximized at 16TB. >> >> - For Linux kernel 2.6.x running on 64-bit CPU, the maximum LV size is >> 8EB (extremely terrible big storage for this time being!) >> >> Are they right? > > Ok. But it's really impractical to have large multi-terabyte > single filesystem today. What are you wanting to do? Ever fsck a > 2TB filesystem? Consider yourself warned. > > Or... were you just curious about the maximums? > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > >