On Tue, Nov 27, 2012 at 7:19 PM, Matt Joyce <matt.jo...@cloudscaling.com>wrote:
> other hazard to mention. > > live fs resizes tend to be sketchy. the growing of a live filesystem is > possible and tends to work. but shrinking for obvious reasons is very > dangerous and can be wrought with peril. also cannot be done live as far > as I know for any ext filesystem. > > -matt > > On Tue, Nov 27, 2012 at 6:13 PM, Lei Zhang <zhang.lei....@gmail.com>wrote: > >> Got it. >> >> Could Cinder can check the created volume? I can not find any command >> like cinder update. I try to extends the volume by lvextend, but data in >> the cinder db doesn't update. So when I delete the changed volume, it raise >> error. >> >> On Tue, Nov 27, 2012 at 12:34 PM, Dean Troyer <dtro...@gmail.com> wrote: >> >> On Mon, Nov 26, 2012 at 8:04 PM, Lei Zhang <zhang.lei....@gmail.com> >>> wrote: >>> > Another question. If the vm treat the vol-0 as a normal block device, >>> is it >>> > necessary to partition? If not, the fdisk will show Disk /dev/vdb >>> doesn't >>> > contain a valid partition table. If yes, how can I extend the volume >>> on the >>> > vm? It seems that treat the volume as a normal block device is not a >>> good >>> > idea. >>> >>> It is not necessary to partition the device (vdb) inside com-0. If >>> you use it as an LVM physical device (PV) inside com-0 then pvresize >>> will update the metadata o recognize the new size inside com-0 after >>> you lvextend the vol-0 in the host. >>> >>> If you do partition /dev/vdb and don't use LVM in com-0 it is still >>> possible to grow a partition, but you'll have to delete and re-create >>> the last partition to get com-0 to recognize the additional space. >>> And you'd also need to do the filesystem resize too. >>> >>> Nested LVM can be tricky but if you are careful to keep the layers >>> separated it can work. >>> >>> dt >>> >>> -- >>> >>> Dean Troyer >>> dtro...@gmail.com >>> >> -- >> Lei Zhang >> >> Blog: http://jeffrey4l.github.com >> twitter/weibo: @jeffrey4l >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : openstack@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp >> >> > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > There is no functionality to re-size a Cinder Volume. John
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