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 SMTP id i2PLLmj28770 for ; Thu, 25 Mar 2004 16:21:48 -0500 Received: from smtp3.sentex.ca (smtp3.sentex.ca [64.7.153.18]) by mx1.redhat.com (8.12.10/8.12.10) with SMTP id i2PLLlWA027332 for ; Thu, 25 Mar 2004 16:21:47 -0500 Received: from smtp2.sentex.ca (smtp2c.sentex.ca [64.7.153.30]) by smtp3.sentex.ca (8.12.10/8.12.10) with ESMTP id i2PLLg7C080143 for ; Thu, 25 Mar 2004 16:21:42 -0500 (EST) (envelope-from bvrabete@yahoo.ca) Received: from blec (p13xji.dsl2.sentex.ca [64.7.157.14]) by smtp2.sentex.ca (8.12.11/8.12.11) with SMTP id i2PLLEmp032315 for ; Thu, 25 Mar 2004 16:21:46 -0500 (EST) (envelope-from bvrabete@yahoo.ca) Message-ID: <005601c412af$748d71a0$1fa0a8c0@blec> From: "Brad Vrabete" Date: Thu, 25 Mar 2004 16:23:44 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0053_01C41285.8AE91D20" Subject: [linux-lvm] 2 TB limit 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: To: linux-lvm@redhat.com This is a multi-part message in MIME format. ------=_NextPart_000_0053_01C41285.8AE91D20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, Is there any was to create a logigal volume larger than 2TB? Can LVM2 do = that? Thanks, Brad Vrabete ------=_NextPart_000_0053_01C41285.8AE91D20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi,
 
Is there any was to create a logigal = volume larger=20 than 2TB? Can LVM2 do that?
 
Thanks,
 
Brad Vrabete
------=_NextPart_000_0053_01C41285.8AE91D20-- 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 SMTP id i2QGDvj20469 for ; Fri, 26 Mar 2004 11:13:57 -0500 Received: from smtp.itanets.com (smtp.itanets.com [216.12.200.84]) by mx1.redhat.com (8.12.10/8.12.10) with SMTP id i2QGDt1X006014 for ; Fri, 26 Mar 2004 11:13:56 -0500 From: Delian Krustev Subject: Re: [linux-lvm] 2 TB limit Date: Fri, 26 Mar 2004 18:13:50 +0200 References: <005601c412af$748d71a0$1fa0a8c0@blec> In-Reply-To: <005601c412af$748d71a0$1fa0a8c0@blec> MIME-Version: 1.0 Message-Id: <200403261813.50041.krustev@krustev.net> 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 On Thursday 25 March 2004 23:23, Brad Vrabete wrote: > Is there any was to create a logigal volume larger than 2TB? Can LVM2 do > that? I think it can. However tha maximum size for a block device in 2.4 kernels is 2TB. You should try 2.6, and use large enough PE size. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from null.msp.redhat.com (null.msp.redhat.com [172.16.31.120]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id i2QGGjj21268 for ; Fri, 26 Mar 2004 11:16:45 -0500 Received: from null.msp.redhat.com (localhost.localdomain [127.0.0.1]) by null.msp.redhat.com (8.12.11/8.12.11) with ESMTP id i2QGGj7c021162 for ; Fri, 26 Mar 2004 10:16:45 -0600 Received: (from alewis@localhost) by null.msp.redhat.com (8.12.11/8.12.11/Submit) id i2QGGjQm021161 for linux-lvm@redhat.com; Fri, 26 Mar 2004 10:16:45 -0600 Date: Fri, 26 Mar 2004 10:16:44 -0600 From: AJ Lewis Subject: Re: [linux-lvm] 2 TB limit Message-ID: <20040326161644.GF12948@null.msp.redhat.com> References: <005601c412af$748d71a0$1fa0a8c0@blec> <200403261813.50041.krustev@krustev.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="byLs0wutDcxFdwtm" Content-Disposition: inline In-Reply-To: <200403261813.50041.krustev@krustev.net> 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: To: LVM general discussion and development --byLs0wutDcxFdwtm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 26, 2004 at 06:13:50PM +0200, Delian Krustev wrote: > On Thursday 25 March 2004 23:23, Brad Vrabete wrote: >=20 > > Is there any was to create a logigal volume larger than 2TB? Can LVM2 do > > that? >=20 > I think it can. However tha maximum size for a block device in 2.4 kernels > is 2TB. You should try 2.6, and use large enough PE size. The PE size limitation isn't present in lvm2 (The version of lvm that works in 2.6) if you use the native lvm2 format. So you should be able to create larger than 2TB LVs with LVM2. Just FYI. --=20 AJ Lewis Voice: 612-638-0500 Red Hat Inc. E-Mail: alewis@redhat.com 720 Washington Ave. SE, Suite 200 Minneapolis, MN 55414 Current GPG fingerprint =3D FE77 4B43 6A9B F982 A731 02FA 2BF5 7574 294A A= A5A Grab the key at: http://people.redhat.com/alewis/gpg.html or one of the many keyservers out there... -----Begin Obligatory Humorous Quote---------------------------------------- File not found. Should I fake it? (Y/N) -----End Obligatory Humorous Quote------------------------------------------ --byLs0wutDcxFdwtm Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQFAZFds9QxUqFeMhxURAv51AJwNQ3yH3+kcNIH5qyeFKrycxMCXogCdExFx u/77LFh20W/KpzluxZeaP8Y= =8nfE -----END PGP SIGNATURE----- --byLs0wutDcxFdwtm-- 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 SMTP id i2PNPmj00320 for ; Thu, 25 Mar 2004 18:25:48 -0500 Received: from shell.blacknet.de (shell.blacknet.de [80.254.131.106]) by mx1.redhat.com (8.12.10/8.12.10) with SMTP id i2PNPlWA002288 for ; Thu, 25 Mar 2004 18:25:47 -0500 Date: Fri, 26 Mar 2004 00:17:11 +0100 From: Goetz Bock Subject: Re: [linux-lvm] 2 TB limit Message-ID: <20040325231658.GD24286@shell.blacknet.de> References: <005601c412af$748d71a0$1fa0a8c0@blec> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <005601c412af$748d71a0$1fa0a8c0@blec> 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" Content-Transfer-Encoding: 7bit To: linux-lvm@redhat.com On Thu, Mar 25 '04 at 16:23, Brad Vrabete wrote: > Is there any was to create a logigal volume larger than 2TB? Can LVM2 > do that? you need to use 2.6.x (or find a patch for 2.4.x) as onty his kernel supports large block devices. Or you might have luck with x86_64 (aka AMD Opterons) -- /"\ Goetz Bock at blacknet dot de -- secure mobile Linux everNETting \ / (c) 2003 as GNU FDL 1.1 X [ 1. Use descriptive subjects - 2. Edit a reply for brevity - ] / \ [ 3. Reply to the list - 4. Read the archive *before* you post ] From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from homer.msp.redhat.com (homer.msp.redhat.com [172.16.30.9]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id i4CLWj306413 for ; Wed, 12 May 2004 17:32:45 -0400 Received: (from agk@localhost) by homer.msp.redhat.com (8.11.6/8.11.6) id i4CLWiu08012 for linux-lvm@redhat.com; Wed, 12 May 2004 16:32:44 -0500 Date: Wed, 12 May 2004 16:32:44 -0500 From: Alasdair G Kergon Subject: Re: [linux-lvm] 2 TB limit Message-ID: <20040512163244.C23665@homer.msp.redhat.com> References: <005601c412af$748d71a0$1fa0a8c0@blec> <200403261813.50041.krustev@krustev.net> <20040326161644.GF12948@null.msp.redhat.com> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <20040326161644.GF12948@null.msp.redhat.com>; from alewis@redhat.com on Fri, Mar 26, 2004 at 10:16:44AM -0600 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" Content-Transfer-Encoding: 7bit To: LVM general discussion and development On Fri, Mar 26, 2004 at 10:16:44AM -0600, AJ Lewis wrote: > The PE size limitation isn't present in lvm2 (The version of lvm that works > in 2.6) if you use the native lvm2 format. So you should be able to create > larger than 2TB LVs with LVM2. Just FYI. As those of you monitoring the lvm-cvs mailing list may have noticed, I've added code to the LVM2 CVS tree to help people simulate large devices for testing purposes on 2.6 kernels with the latest -udm patches. lvcreate --type zero -L16T vg # Create 16TB 'zero' device lvcreate -s vg/lvol0 -L1G # Create snapshot of it Then use the snapshot as a 'sparse' device, in the example, supporting upto 1GB of actual data. [At some point I'll merge it into a one-line command with --type sparse] NB There's been a lot of change in CVS recently (and more to come) so I expect some new bugs to show up along with the new features:-( Alasdair -- agk@redhat.com From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 02 Sep 2004 15:15:51 -0500 From: "P. Larry Nelson" Subject: Re: [linux-lvm] 2 TB limit In-reply-to: <20040512163244.C23665@homer.msp.redhat.com> Message-id: <41377F77.7050201@uiuc.edu> MIME-version: 1.0 Content-transfer-encoding: 7bit References: <005601c412af$748d71a0$1fa0a8c0@blec> <200403261813.50041.krustev@krustev.net> <20040326161644.GF12948@null.msp.redhat.com> <20040512163244.C23665@homer.msp.redhat.com> 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; format="flowed"; charset="us-ascii" To: LVM general discussion and development Cc: agk@redhat.com On 5/12/2004 4:32 PM, Alasdair G Kergon wrote: > On Fri, Mar 26, 2004 at 10:16:44AM -0600, AJ Lewis wrote: > >>The PE size limitation isn't present in lvm2 (The version of lvm that works >>in 2.6) if you use the native lvm2 format. So you should be able to create >>larger than 2TB LVs with LVM2. Just FYI. > > > As those of you monitoring the lvm-cvs mailing list may have noticed, > I've added code to the LVM2 CVS tree to help people simulate large devices > for testing purposes on 2.6 kernels with the latest -udm patches. > > lvcreate --type zero -L16T vg # Create 16TB 'zero' device > lvcreate -s vg/lvol0 -L1G # Create snapshot of it > > Then use the snapshot as a 'sparse' device, in the example, supporting > upto 1GB of actual data. > > [At some point I'll merge it into a one-line command with --type sparse] > > NB There's been a lot of change in CVS recently (and more to come) > so I expect some new bugs to show up along with the new features:-( > > Alasdair Being confined to running RedHat and using their updates and RPMs, I'm running stock RHEL-ES3 file servers with latest RH kernel of 2.4.21-15.0.4.ELsmp and lvm-1.0.3-15. I'm led to understand that the ES3 kernel has portions of the 2.6 kernel in it, but I don't think it has the portion that can handle >2TB file systems. I have had a need to go to >2TB file systems for some time and am sort of limping along by stringing together many 2TB file systems. Can anyone (perhaps our list contributor from RedHat?) tell me when I can expect a kernel and lvm from RedHat that will allow me to go beyond the 2TB limit? Thanks! - Larry -- P. Larry Nelson (217-244-9855) | Systems/Network Administrator 461 Loomis Lab | U of I, CITES Departmental Services 1110 W. Green St., Urbana, IL | Consultant to: High Energy Physics Group MailTo:lnelson@uiuc.edu | http://www.uiuc.edu/ph/www/lnelson ------------------------------------------------------------------------- "Information without accountability is just noise." - P.L. Nelson 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 i83K1W302757 for ; Fri, 3 Sep 2004 16:01:32 -0400 Received: from swlx167.swmed.edu (swlx167.swmed.edu [199.165.152.167]) by mx1.redhat.com (8.12.10/8.12.10) with ESMTP id i83K1QS0002691 for ; Fri, 3 Sep 2004 16:01:27 -0400 Received: from [129.112.118.137] (helo=utsouthwestern.edu) by swlx167.swmed.edu with esmtp (Exim 4.34) id 1C3KFN-0002nt-3u for linux-lvm@redhat.com; Fri, 03 Sep 2004 15:01:21 -0500 Message-ID: <4138CD8E.8060701@utsouthwestern.edu> Date: Fri, 03 Sep 2004 15:01:18 -0500 From: Peter Smith MIME-Version: 1.0 References: <005601c412af$748d71a0$1fa0a8c0@blec> <200403261813.50041.krustev@krustev.net> <20040326161644.GF12948@null.msp.redhat.com> <20040512163244.C23665@homer.msp.redhat.com> <41377F77.7050201@uiuc.edu> In-Reply-To: <41377F77.7050201@uiuc.edu> Subject: Re: [linux-lvm] 2 TB limit Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigB8A7EF92842B90325A8C97F3" 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: To: LVM general discussion and development This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigB8A7EF92842B90325A8C97F3 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit P. Larry Nelson wrote: > On 5/12/2004 4:32 PM, Alasdair G Kergon wrote: > >> On Fri, Mar 26, 2004 at 10:16:44AM -0600, AJ Lewis wrote: >> >>> The PE size limitation isn't present in lvm2 (The version of lvm >>> that works >>> in 2.6) if you use the native lvm2 format. So you should be able to >>> create >>> larger than 2TB LVs with LVM2. Just FYI. >> >> >> >> As those of you monitoring the lvm-cvs mailing list may have noticed, >> I've added code to the LVM2 CVS tree to help people simulate large >> devices >> for testing purposes on 2.6 kernels with the latest -udm patches. >> >> lvcreate --type zero -L16T vg # Create 16TB 'zero' device >> lvcreate -s vg/lvol0 -L1G # Create snapshot of it >> >> Then use the snapshot as a 'sparse' device, in the example, supporting >> upto 1GB of actual data. >> >> [At some point I'll merge it into a one-line command with --type sparse] >> >> NB There's been a lot of change in CVS recently (and more to come) >> so I expect some new bugs to show up along with the new features:-( >> >> Alasdair > > > Being confined to running RedHat and using their updates and RPMs, > I'm running stock RHEL-ES3 file servers with latest RH kernel of > 2.4.21-15.0.4.ELsmp and lvm-1.0.3-15. I'm led to understand that > the ES3 kernel has portions of the 2.6 kernel in it, but I don't > think it has the portion that can handle >2TB file systems. > > I have had a need to go to >2TB file systems for some time and am > sort of limping along by stringing together many 2TB file systems. > > Can anyone (perhaps our list contributor from RedHat?) tell me when > I can expect a kernel and lvm from RedHat that will allow me to go > beyond the 2TB limit? > > Thanks! > - Larry I happened to look into this over the past few months. Redhat Enterprise Linux v3 does NOT have any support for >2TB _anything_. Redhat has told me that >2TB support, which would mean kernel v2.6 (and probably LVM2) will only be available when Enterprise v4 comes out. Also, v4 is scheduled to be out in probably about 10 more months now, maybe less (at the time it was 13-15 months). HTH Peter --------------enigB8A7EF92842B90325A8C97F3 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQFBOM2R/TMBbARZqsERAmi2AJ9FVa97Ikh77I4zSIsDwLsqOq5XpwCeILCF Tgo+plm7MIOPBVNffrL5Ugc= =4RlD -----END PGP SIGNATURE----- --------------enigB8A7EF92842B90325A8C97F3--