From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx04.extmail.prod.ext.phx2.redhat.com [10.5.110.8]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o02AWVZW016799 for ; Sat, 2 Jan 2010 05:32:31 -0500 Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx1.redhat.com (8.13.8/8.13.8) with SMTP id o02AWKxl008239 for ; Sat, 2 Jan 2010 05:32:20 -0500 Message-ID: <4B3F1A65.90100@gmx.at> Date: Sat, 02 Jan 2010 11:05:25 +0100 From: Sulla MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] size of a PV > 2TB possible? (kernel with LBD support) 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: linux-lvm@redhat.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear all! I'm sorry I have to ask this question to this mailing list, but I have not been able to find sufficient and conclusive informaiton on the web. The mailing-list archive at redhat seems not to be searchable. What is the maximum size of a PV in LVM2? I run linux 2.6.24 kernel (Ubuntu server 8.04 LTS, 32bit i386) with lvm2 2.02.26 and mdadm 2.6.3. The kernel has CONFIG_LBD=y in its configuration. I currently use a 2TB (just under 2TB, 1.98TB actually) raid5 array /dev/mdN as the one and only PV in a VG. I would like to grow the array by addition of another disk to 3TB and then expand the PV. As far as I understand mdadm, on a kernel with LBD support it should be able to create a blockdevice >2TB, but I am not sure that LVM2 will accept it as a PV. The LVM2-Howto on TLDP (http://tldp.org/HOWTO/LVM-HOWTO/lvm2faq.html) confirms that LVs can be >2TB (16TB on 32bit OS, 8EB on 64bit OS), but says nothing at all about PVs. Could somebody add that information? thanx for support kind regards, Sulla -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFLPxplR6b2EdogPFsRApOQAKCq5lWWCZEU3lOqDN0yNwtjSWTx/wCfb7Bu m2SeTwsAeRU3008a1RvWBC8= =IBoj -----END PGP SIGNATURE-----