On Monday November 24, linux-raid@crome.org wrote: > Hello all, I've got a peculiar problem. I added some new disk space to my > system (Linux 2.4.19, Mandrake), and created a RAID1 drive /dev/md0 with > only 1 active mirror because I didn't have enough space (yet) to put > everything on my new raid drive. I had the intention of then addeding > another disk to the raid setup later so that it would just > auto-reconsctruct and be ready to go. Sorry, but that was the wrong thing to do. A raid1 with only one drive is pretty pointless, but you asked for it and you got it :-) What you should have done is make a raid1 with 2 drives, one of which was missing/failed. With mdadm, the command would be: mdadm -C /dev/md0 --level=raid1 --disks=2 /dev/hda3 missing then you can hot-add the extra drive when it arrives. What you have to do now is recreate the raid1 with two drives. You will have to have the filesystem unmounted and the raid stopped, but you will not lose any data. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
