On Fri, Feb 13, 2004 at 07:15:14PM +0100, Christian Reiss wrote: > Greetings again, > > Yes, of course it was not a rogue lvm ;) > Fun is a must, eh? :) > > Anyway, > Here is my recipe of shrinking the lvm. > I hope i got it right, now with the e2fsadm thingy: If you want to shrink a VG in order to reduce it by PVs, there's no need to deactivate the VG (see below). Regards, Heinz -- The LVM Guy -- > > 1. unmount it > 2. e2fsadm -L-(SIZE)G /dev/share/data > 3. pvmove /dev/(HDD) Not needed > 4. vgchange -a n 4. vgchange -x y > 5. vgreduce share /dev/(HDD) Not needed > 6. vgchange -a y 6. vgchange -x n > 7. fdisk /dev/(HDD) > 8. mkfs.ext2 auf /dev/(HDD) > 9. Copy files to reduce data amount on LVM > 10. repeat > > Or am i missing anything? :) > If not, i will spent some hours of GREAT FUN > shrinking it. Ahh, the fsck's, movings and.. :) > > -Christian. > BTW: Awesome support! :) > > > > > Heinz Mauelshagen wrote: > >On Fri, Feb 13, 2004 at 06:06:59PM +0100, Christian Reiss wrote: > > > >>Greetings again, > >> > >>Curious, I replied, but did not recive a copy of my reply, > >>maybe it got lost in the internet? :) Killed by a rogue lvm, > >>I assume ;) - If this was/is only me missing my reply, then > >>I am deeply sorry for spamming - not intentionally, really. > > > > > >Christian, > > > >as long as you agree that it wasn't LVM it is no problem ;-) > > > > > >>--- > >> > >>Hi there! > >> > >>Big thanks for the very fast answer!! > >>Much appreciated! > >> > >>Just to be VERY sure, tune2fs -l says: > >> > > > ><SNIP> > > > >>Block count: 250576896 > > > ><SNIP> > > > >>Block size: 4096 > > > ><SNIP> > > > >>So What lvreduce size should i use to shrink it? > >>I better have a guru look over it, better safe than > >>sorry > > > > > >250576896 * 4KB / 1024MB/KB= 978816MB (which is a multiple of 32MB) > > > >-> > > > ># lvreduce -L 978816M /dev/share/data > > > >That should free 112640MB or 3520 PEs in your VG. > > > > > >BTW: you should either run e2fsadm to grow/shrink the unmounted > > filesystem _and_ the logical volume in one go > > -or- > > use the filesystem resizer and lvextend/lvreduce in the correct order > > (lvextend + grow fs -or- shrink fs + lvreduce). > > > > Problem with the later is getting the size arguments right ;-) > > > > > >Regards, > >Heinz -- The LVM Guy -- > > > > > > > > > >>-Christian. > >> > >>Heinz Mauelshagen wrote: > >> > >> > >>>Christian, > >>> > >>>the size of your filesystem and logical volume differs already. > >>>That's why e2fsadm fails. > >>>Did you eventually run resize2fs in order to shrink the filesystem ? > >>> > >>>Your logical volume size is 1091456MB (32MB/PE * 34108 PE) but your > >>>filesystem size is 963584GB (941GB * 1024MB/GB; check with > >>>"tune2fs -l" and look for the block count and block size to calculate > >>>this correctly). > >>> > >>>In case the result shows, that your filesystem is already smaller > >> > >>than the LV, > >> > >>>lvreduce the logical volume appropriately. > >>> > >>>Use the block count * block size result and round it up to the next PE! > >>> > >>>Regards, > >>>Heinz -- The LVM Guy -- > >>> > >>> > >>> > >>> > >>>On Fri, Feb 13, 2004 at 03:06:28PM +0100, Christian Reiss wrote: > >>> > >>> > >>>>Greetings! > >>>> > >>>>I am trying to dissolve a running LVM, so i am doing > >>>>the e2fsadm, lvreduce, pvmove thingy. But ever since I > >>>>removed the first hdd, I am unable to resize the lvm > >>>>any more. The error can be seen below, with e2fsadm. > >>>>I also included the vg&lvdisplay commands. > >>>> > >>>>I am running the LVM1 sources (non-cvs, approx mid last > >>>>year), as i am unable to run LVM2 (need to downgrade kernel > >>>>to 2.4.22 (no patch included in lvm2 for 2.4.23)). > >>>>Also, I am (too dumb/unable) to locate a e2fsadm alike > >>>>tool for lvm2, as e2fsadm needs the lvm-tab thingy, > >>>>which lvm2 no longer provides. > >>>> > >>>>Any help is greatly appreciated. > >>>> > >>>>-Christian. > >>>> > >>>> > >>>>:::::::::::::::::: > >>>>::: vgdisplay :::: > >>>> > >>>>--- Volume group --- > >>>>VG Name share > >>>>VG Access read/write > >>>>VG Status available/NOT resizable > >>>>VG # 0 > >>>>MAX LV 256 > >>>>Cur LV 1 > >>>>Open LV 1 > >>>>MAX LV Size 2 TB > >>>>Max PV 256 > >>>>Cur PV 11 > >>>>Act PV 11 > >>>>VG Size 1.12 TB > >>>>PE Size 32 MB > >>>>Total PE 36668 > >>>>Alloc PE / Size 34108 / 1.04 TB > >>>>Free PE / Size 2560 / 80 GB > >>>>VG UUID PSYbaQ-bl8d-xvHp-6re2-hoKd-9mE5-Wa5Tqz > >>>> > >>>>::::::::::::::: > >>>>:: lvdisplay :: > >>>> > >>>>--- Logical volume --- > >>>>LV Name /dev/share/data > >>>>VG Name share > >>>>LV Write Access read/write > >>>>LV Status available > >>>>LV # 1 > >>>># open 1 > >>>>LV Size 1.04 TB > >>>>Current LE 34108 > >>>>Allocated LE 34108 > >>>>Allocation next free > >>>>Read ahead sectors 1024 > >>>>Block device 58:0 > >>>> > >>>>::::::::::::: > >>>>:: e2fsadm :: > >>>> > >>>>e2fsadm -L-10G /dev/share/data > >>>>e2fsadm -- logical volume size for "/dev/share/data" invalid > >>>> > >>>>::::::::::: > >>>>:: df -h :: > >>>> > >>>>Filesystem Size Used Avail Use% Mounted on > >>>>/dev/share/data 941G 910G 32G 97% /share/filebase > >>>> > >>>> > >>>>-- > >>>>Christian Reiss <email@demonlord.de> > >>>>demonserver.de > >>>> > >>>>Key fingerprint = 2999 B7CD A218 06DF D658 5BE3 18B6 B232 02FF 71B2 > >>>>Public Key can be obtained here: http://www.demonlord.de/pgp.txt > >>>_______________________________________________ > >>>linux-lvm mailing list > >>>linux-lvm@redhat.com > >>>https://www.redhat.com/mailman/listinfo/linux-lvm > >>>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > >>-- > >>Christian Reiss <email@demonlord.de> > >>demonserver.de > >> > >>Key fingerprint = 2999 B7CD A218 06DF D658 5BE3 18B6 B232 02FF 71B2 > >>Public Key can be obtained here: http://www.demonlord.de/pgp.txt > >_______________________________________________ > >linux-lvm mailing list > >linux-lvm@redhat.com > >https://www.redhat.com/mailman/listinfo/linux-lvm > >read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > > -- > Christian Reiss <email@demonlord.de> > demonserver.de > > Key fingerprint = 2999 B7CD A218 06DF D658 5BE3 18B6 B232 02FF 71B2 > Public Key can be obtained here: http://www.demonlord.de/pgp.txt *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Red Hat, Inc. Consulting Development Engineer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@RedHat.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
