On 1/13/06, M. Lewis <cajun@xxxxxxxxxxxx> wrote: > > FC4 > > Are there any gotchas to adding RAID-1 to a existing, operating FC3 box? > > Things to watch out for, pointers, howtos, etc. The only gotcha is making sure you add the correct entires in you /etc/mdadm.conf file or your volume will not be properly assembed at boot time. Basically, you want to do this: 1. run 'mdadm --detail --scan' and copy the ARRAY line. 2. Open /etc/mdadm.conf and add the following: DEVICE partitions MAILADDR root (your ARRAY line from the above command) auto=md Your entry will look something like this: DEVICE partitions MAILADDR root ARRAY /dev/md0 level=raid1 num-devices=2 UUID=9d63435e:d8d83d77:d30ddb0d:6bd45f86 auto=md Note that the auto=md isn't technically necessary on a system using udev, and also that it's on the same line as the ARRY entry. -- Chris "I trust the Democrats to take away my money, which I can afford. I trust the Republicans to take away my freedom, which I cannot."