On Wed, Feb 27, 2002 at 02:39:27PM +0100, Friedrich Lobenstock wrote: > "Heinz J . Mauelshagen" wrote: > > > > In case you just want to update your LVM software, you don't need to > > vgexport/vgimport your VGs as described under that URL. > > > > Presuming that you took backups of your data and metadata (/etc/lvmconf/*) > > and don't have root on a LV, > > Yes root is on a LV on RAID1 and the data is on a LV on another RAID1 > > # uname -a > Linux www 2.4.0-test12-pre4-reiserfs-md-fixes #4 Fri Jan 19 14:48:29 CET 2001 i686 unknown > > # cat /proc/lvm > LVM driver version 0.8final (15/02/2000) > > Total: 2 VGs 2 PVs 6 LVs (6 LVs open 6 times) > > Global: 156410 bytes malloced IOP version: 6 22:43:33 active > > VG: system-disk [1 PV, 4 LV/4 open] PE Size: 4096 KB > Usage [KB/PE]: 9969664 /2434 total 9969664 /2434 used 0 /0 free > PV: [AA] md1 9969664 /2434 9969664 /2434 0 /0 > LVs: [AWCL ] swap 524288 /128 1x open > [AWDL ] root 2097152 /512 1x open > [AWDL ] tmp 524288 /128 1x open > [AWDL ] var 6823936 /1666 1x open > > VG: data-disk [1 PV, 2 LV/2 open] PE Size: 8192 KB > Usage [KB/PE]: 78143488 /9539 total 55615488 /6789 used 22528000 /2750 free > PV: [AA] md3 78143488 /9539 55615488 /6789 22528000 /2750 > LVs: [AWDL ] 1 18022400 /2200 1x open > [AWDL ] 2 37593088 /4589 1x open > > # df -h > Filesystem Size Used Avail Use% Mounted on > /dev/system-disk/root > 2.0G 1.5G 522M 75% / > /dev/md0 50M 37M 13M 74% /boot > /dev/system-disk/tmp 512M 32M 480M 6% /tmp > /dev/system-disk/var 6.5G 92M 6.4G 1% /var > /dev/data-disk/1 17G 12G 5.1G 70% /mount/1 > /dev/data-disk/2 36G 12G 24G 34% /mount/2 > > /dev/system-disk/ has PV /dev/md1 > /dev/data-disk/ has PV /dev/md3 > > # cat /proc/mdstat > Personalities : [raid1] > read_ahead 1024 sectors > md0 : active raid1 hdc1[0] hda1[1] > 51264 blocks [2/2] [UU] > > md1 : active raid1 hdc2[0] hda2[1] > 9970560 blocks [2/2] [UU] > > md3 : active raid1 hdg1[1] hde1[0] > 78150592 blocks [2/2] [UU] > > Therefore I will install a new system and I'll just take the disks > that belong to /dev/md3 and put them in this new system. So I'll > have the old system to put the disks back if anything goes wrong > in the new system. > > In the new system I just need to pvmove the the data onto the new > disks, this time hardware RAID instead of software RAID, so no > fancy stuff to get lilo boot with root on LV. > > So how should I do it, just "vgscan;vgchange -ay" or do I need to > vgexport/vgimport and will this cause troubles? If you want to move the devices over to another system, vgexport+vgimport is the recommended way to go. > > -- > MfG / Regards > Friedrich Lobenstock > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html -- Regards, Heinz -- The LVM Guy -- *** 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://www.sistina.com/lvm/Pages/howto.html
