ionice is a nice program to include with pvmove. I guess the easier thing for me is the live moving part.
On Mon, Dec 7, 2009 at 3:14 PM, Les Mikesell <lesmikes...@gmail.com> wrote: > Shawn Perry wrote: >> I an not suggesting that you use LVM to expand a partition, but it is >> much easier to move a partition to a new and larger disk/array when >> it's on an LVM. >> >> Put another way >> >> 1. Add the new disk/array >> 2. run pvcreate on it >> 3. vgextend the old VG to include the new disk/array >> 4. pvmove from the old array to the new array >> 5. vgreduce the old PV from the VG >> 6. resize the file system. > > Where's the easy part, compared to unmounting the old partition, dd'ing > it to the new, then resizing? > >> Hardware willing, you don't even have to reboot or take backuppc offline. > > I suppose that could be an advantage, but I'd expect backups to be > unrealistically slow for the duration of the pvmove so you might as well > stop and unmount. > >> As far as BackupPC goes, I do not believe that speed is life. I >> believe that reliability and flexibility is life. This isn't a >> database server here. Pick a good fast reliable RAID array (I like >> RAID 10 with a hot spare) and have at it. > > Agreed there, but LVM seems like an unnecessary layer. And unless you > need something bigger than available disks, I prefer raid1 so you can > recover data from any single disk. > > -- > Les Mikesell > lesmikes...@gmail.com > > > > > ------------------------------------------------------------------------------ > Return on Information: > Google Enterprise Search pays you back > Get the facts. > http://p.sf.net/sfu/google-dev2dev > _______________________________________________ > BackupPC-users mailing list > BackupPC-users@lists.sourceforge.net > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > Wiki: http://backuppc.wiki.sourceforge.net > Project: http://backuppc.sourceforge.net/ > ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/