Francesco Pietra wrote: > Thanks so much. I am also using raid1 since I met Debian, so many years > ago. However the poor way I described. I'll do what you suggest as soon > time permits, although the cables to the HDs in the old server are > difficultly accessible. And, in the meantime, I would be at a single > server, insecure as with a bad raid1. I wasn't suggesting that you hack around on your production server. I was suggesting that you create a victim machine for testing on a workbench that is seperate from your production server. And this victim machine does not need to be a rack mount server at all. An old deskside machine is perfect. Something that has two disk drives in it for testing the RAID1 installation. Do the test on this testing victim machine separate from your production machine. When you have verified how everything works then do those actions on your production machine. That way your production machine is safe from experiments. And it is much easier to test and learn and experiment upon a machine that is targeted specifically for that purpose. > Failure that I described in adding grub to the other HD was in a single > trial and now the HDs are different, taken from a dismissed four-sockets > dual-core AMD server. The type of disk drive should not matter. Bob
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