From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3F1078F9.9050608@portrix.net> From: Jan Dittmer MIME-Version: 1.0 Subject: Re: [linux-lvm] lvm2, extending a physical volume References: <3F0A9604.5000101@portrix.net> <20030709100320.A17130@sistina.com> In-Reply-To: <20030709100320.A17130@sistina.com> Content-Transfer-Encoding: 7bit Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Sat Jul 12 16:10:02 2003 List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-lvm@sistina.com Hi, would this be a reasonable course of action? vgcfgbackup myraid pvcreate -yff -u wZQg66-cWrF-VDi5-GcRN-aYVg-RQQ3-PPm5K5 /dev/md0 `take the size pvcreate reports and change the backup file accordingly` vgcfgrestore myraid Thanks, Jan Heinz J . Mauelshagen wrote: > Jan, > > you didn't overlook something. There's a bug in the > > pvcreate -yff -u wZQg66-cWrF-VDi5-GcRN-aYVg-RQQ3-PPm5K5 /dev/md0 > vgcfgrestore myraid > > trick we'll fix ASAP (vgcfgrestore should keep the new size which it doesn't). > > We're thinking about a pvresize command to make this smoother. > > Regards, > Heinz -- The LVM Guy -- > > > On Tue, Jul 08, 2003 at 11:59:32AM +0200, Jan Dittmer wrote: > >>Hi, >> >>I posted this a while ago on lvm-devel, but received no answer. >>I'm using kernel 2.5(.74-mm2) with LVM2 and have a RAID5 to which I >>added a new disk with raidreconf. This worked fine, but lvm doesn't >>recognize the extra disk space: >> >># pvdisplay >> --- Physical volume --- >> PV Name /dev/md0 >> VG Name myraid >> PV Size 335.36 GB / not usable 0 >> Allocatable yes (but full) >> PE Size (KByte) 4096 >> Total PE 85853 >> Free PE 0 >> Allocated PE 85853 >> PV UUID wZQg66-cWrF-VDi5-GcRN-aYVg-RQQ3-PPm5K5 >> >>but: >> >># cat /proc/mdstat >>Personalities : [linear] [raid0] [raid1] [raid5] [multipath] >> >>md0 : active raid5 hdc1[4] hdh1[3] hdf1[2] hdg1[1] hde1[0] >> 468872704 blocks level 5, 4k chunk, algorithm 2 [5/5] [UUUUU] >> >>which translates to ~480 GB (5x 120GB) >> >>Somewhere I found a post, that with vgcfgbackup / vgcfgrestore one is >>able to resize the volume. But simply backing up and restoring the >>descriptor just gets me to the same situation. >>As I've another partition (which isn't that important) I tried to change >>the backup manually, ie. I changed pe_count in the backup file and >>restored it. This works fine - but how do I figure the correct PE count >>for this bigger disk? I just don't want to poke around until it says, >>'hey, too big, trashing your data'. There has to be a simple way, I >>guess, which I totally overlook. It isn't that big of a change. >>pvresize tells me it isn't implemented. >> >>Thanks for any insight, >> >>Jan >> >># vgdisplay --version >> LVM version: 1.95.15 (2003-01-10) >> Library version: 0.96.08-ioctl (2003-03-27) >> Driver version: 1.0.6 >> >>-- >>Linux rubicon 2.5.74-mm2-jd4 #1 SMP Sun Jul 6 09:55:20 CEST 2003 i686 >> >> >>_______________________________________________ >>linux-lvm mailing list >>linux-lvm@sistina.com >>http://lists.sistina.com/mailman/listinfo/linux-lvm >>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > > *** Software bugs are stupid. > Nevertheless it needs not so stupid people to solve them *** > > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > Heinz Mauelshagen Sistina Software Inc. > Senior Consultant/Developer Am Sonnenhang 11 > 56242 Marienrachdorf > Germany > Mauelshagen@Sistina.com +49 2626 141200 > FAX 924446 > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > -- Linux rubicon 2.5.75-mm1-jd10 #1 SMP Sat Jul 12 19:40:28 CEST 2003 i686