On Mon, 2005-06-13 at 11:33, Paul Howarth wrote: > Scot L. Harris wrote: > > On Mon, 2005-06-13 at 11:23, Gary Stainburn wrote: > > > >>I've got a FC3 system with default disk format as shown below. Is it > >>possible to add 2 more drives to the system so that the root filesystem > >>grows to use them? > > > > Looks like root is in a LVM group so yes you should be able to add new > > disks and grow the root file system. The tricky part is that you will > > most likely have to do this from a rescue CD, not sure you can grow a > > file system that is mounted and being used. Hopefully someone that has > > done this will comment. > > You can use ext2online to resize a mounted ext2/ext3 filesystem, so a > rescue CD might not be needed (ext2online can't always resize a > partition but it'll tell you if it can't). > > The procedure basically involves using pvcreate to create LVM physical > volumes on the new disks, vgextend to add those physical volumes to > VolGroup00 and then lvextend to make logical volume > /dev/VolGroup00/LogVol00 bigger. You can then resize the root filesystem > using either ext2online (if it works), or resize2fs from rescue mode if > ext2online refuses to cooperate. > > See the man pages for the various commands to see how they work. See > also the Linux LVM HOWTO: > http://www.tldp.org/HOWTO/LVM-HOWTO/ Thanks Paul for explaining how that is done. I have built file systems across multiple drives before but that was done during install of the system. BTW: how much of a problem is it with multiple drive file systems when one of those drives fails? Assumption here is that no raid is being used for that volume. And is a chance of such a failure a multiple of the drives in the volume? Or is it higher? -- Scot L. Harris webid@xxxxxxxxxx Only people with names beginning with 'A' are getting mail this week (a la Microsoft)
