> On Wed, Jun 25, 2003 at 11:46:34AM -0600, Andreas Dilger wrote: >> On Jun 25, 2003 18:00 +0100, Stuart Fox wrote: >> > I cant find information about the maximum volume group size in the >> current >> > 2.4 series kernel. >> > >> > Id like to be able to join 2 1.75Tb raid arrays into 1 3.5Tb array. >> > Is this possible? >> >> No, there is a limit of 2TB for all block devices in 2.4 kernels. With >> 2.5, there is a "large block device" configure option that lets you have >> larger block devices. There is apparently also a patch to support this >> on 2.4 kernels, but AFAIK it is not very widely used/tested. > > The question was regarding volum goups, not logical volums. > > So, correct me if I'm wrong, but I think the answer is yes, you will be > able to join 2 1.75 Tb volume groups into a single 3.5 Tb volum group, > if only an apropriate extent-size was set on VG-creation. > > However, each Logical Volum in the Volum-Group need to be smaller than 2 > TB. > > AFAIK the "large block device" feature in 2.5 does not enable > 2TB > logical volumes - it only fixes the general block-device layer, md and > the scsi-subsystem. At least that used to be the case - maybe someone > knows if it has changed? > > > -- > Ragnar Kjørstad > Zet.no > Thanks for the quick replies. It actually applied to both one vg with one lv of 3.5Tb. Guess I'll have to find another way. Cheers Stuart _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
