I believe I have IDE Raid1 with two disks set up correctly using RH Linux 6.1. /proc/mdstat looks ok, etc, To test I tried raidstop -a and raidhotremove but kept getting Device or Resource busy. I unmounted /dev/md1, tried to raidhotremove but no luck. So.... I shutdown, disconnected a disk and powered back up. Needed root password to go into maintenance mode (wouldn't boot otherwise) and did raidstop -a /dev/md1. This was successful. It killed one of the two raid processes and removed md1 from mdstat. System started up and ran ok. Question: can I do a raidstop or raidhotremove with the system up and both disks functioning properly? Couldn't seem to get this to work. I then did some copying with just one disk connected, brought the system down, connected the second disk and booted back up. During the boot process the system kicked the old image of the mirrored partition out of the array as I would expect. Now I needed to add this partition back and have the system re-sync. I tried raidhotadd --all /dev/md1 /dev/hda7 and this worked. The re-sync started. When I tried to raidhotadd the other partition that is mirrored I got an error message related to size. Questions: is this the correct procedure for re-inserting a disk? Do you just boot and then do a raidhotadd? Does raidstart come into the picture? Do you have to do one mirrored partition at a time or should be able to hotadd all of them and have tyhem re-sync simultaneously? Thanks for reading this and any help! Jeff H. [EMAIL PROTECTED]
