Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267976AbUJGUWT (ORCPT ); Thu, 7 Oct 2004 16:22:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268051AbUJGUU1 (ORCPT ); Thu, 7 Oct 2004 16:20:27 -0400 Received: from ex-nihilo-llc.com ([206.114.147.90]:48910 "EHLO ex-nihilo-llc.com") by vger.kernel.org with ESMTP id S268052AbUJGUT2 (ORCPT ); Thu, 7 Oct 2004 16:19:28 -0400 Subject: Maximum block dev size / filesystem size From: Aaron Peterson Reply-To: aaron@alpete.com To: linux-kernel@vger.kernel.org Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-yZRud9ilAOuEdm4XwwKk" Message-Id: <1097180361.491.25.camel@main> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Thu, 07 Oct 2004 16:19:21 -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1685 Lines: 49 --=-yZRud9ilAOuEdm4XwwKk Content-Type: text/plain Content-Transfer-Encoding: quoted-printable I work for a company with a 15 TB SAN. All opinions about the disadvantages of creating really large filesystems aside, I'm trying to find out what is the maximum filesystem size we can allocate on our SAN that a linux box (x86) can really use. I seem to be finding (from various posts on newsgroups and the kernel source itself) that block devices with 2.4 kernels cannot exceed 2 TB, so no matter what the filesystem can theoretically handle, 2 TB is the practical limit. I've read that XFS filesystems can theoretically be created up to 18 million TB in size. What I can't seem to find anywhere is whether the 2 TB block device limit has improved/grown with 2.6 kernels (on x86 hardware). Perhaps I've looked in the wrong places, but I haven't found anything. If you have any helpful information, or can point me towards a better place to look I would be very appreciative. I am not joined to this list, so if you can CC: me in the reply I would also be grateful. Aaron --=-yZRud9ilAOuEdm4XwwKk Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQBBZaTJeJcyAiXpNL8RAkeRAJ94533t6PRB3lBoOb8+zWAMiZbfDACfTCNU DIcfYUMxRLfr8x4rZGpsCoU= =0mFS -----END PGP SIGNATURE----- --=-yZRud9ilAOuEdm4XwwKk-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/