On Wed, 2005-07-20 at 22:10 -0400, Yanick Quirion wrote: > I have a software RAID-5 on FC3 box using three disks and utility > mdadm. I want to add another disk and extend my partition (ext3) > without having to backup, re-create RAID and restore data. I want to > do it online if itʼs possible, but Iʼm able to unmount the partition > if itʼs necessary. At this time, I do not have LVM partition on top of > my RAID. Do I need to create LVM partition to be able to extend the > partition? I think you're out of luck. "man mdadm" suggests that its "grow" support does not yet cover using an additional drive in a RAID5 array. If you were already using LVM then you could add the new drive as extra space for your existing volume group and extend the partition that way, but that would throw away the redundancy you have with your existing RAID setup and hence wouldn't be a good idea anyway. I think you're going to have to go down the backup, re-create RAID and restore data route I'm afraid. Paul. -- Paul Howarth <paul@xxxxxxxxxxxx>
