/ 2007-02-23 16:59:23 +0100 \ Tomasz Chmielewski: > paddy@panici.net schrieb: > >On Fri, Feb 23, 2007 at 12:48:07PM +0100, Tomasz Chmielewski wrote: > >>I have a server which stores several LVM-2 logical volumes. > >> > >>As this system is pretty loaded, I'd like to move some of the logical > >>volumes to another machine. It has to be done remotely, so I can't do it > >>as described in the LVM HOWTO (where one basically adds/replaces disks in one machine). > >> > >>My common sense tells me that I should: > >> > >>1. Unmount/not use the logical volumes on the source server > >>2. Make volumes of the same size on the target server > >>3. Copy it somehow over network > >> > >> > >>I'm not sure of 2 (make volumes of exactly the same size) > >check your PE size, otherwise does what it says on the tin. > > Hmm, how? I just want to move some (not all) logical volumes. > > I guess fdisk is a good idea? > > # fdisk -l /dev/LVM2/ocsi1 > > Disk /dev/LVM2/ocsi1: 3221 MB, 3221225472 bytes > > > 3221225472 / 1024 = 3145728 > > > lvcreate -L3145728k -n ocsi1 LVM2 > > Hmm, hopefully, it's the right size? how about: lvs --units k > >>and 3 (how to copy it all over network, if possible, using SSH only). > >netcat and dd over forwarded port > > Thanks for the idea. dd if=/dev/$vg/$lv bs=32M | buffer -S 10m -s 512k | gzip -1 | ssh -T $target -- \ "gunzip | buffer -s 512k | dd bs=32M of=/dev/$t_vg/$t_lv" -- : Lars Ellenberg Tel +43-1-8178292-55 : : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : : Vivenotgasse 48, A-1120 Vienna/Europe http://www.linbit.com : _______________________________________________ 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/
