On Tue, 17 Aug 1999, David Wood wrote:
> On Tue, 17 Aug 1999, Michael Ghens wrote:
>
> > I have a running system that I would like to put into raid1. However, what
> > I have read is that the mkraid command would erase everything. Is this
> > true? Will I loose my data that I have, or is it only the second disk that
> > bites it.
>
> Michael, you cannot (as yet, AFAIK) take an existing ext2 partition and
> raid it without "reformatting" it. The only way to do it is to back up
> your data, repartition (as necessary), set up your raid, mkfs, and then
> restore the data into the new (multi-partition/drive-based) filesystem.
Hmm. I just realized this may not actually be true, although I can't find
anything in the faq about it one way or the other. I guess in theory, you
could set up raid-1 with an already working partition as the first disk,
and when you turned it on, the reconstruction would mirror it to the
others? Though that's a totally arbitrary guess - I wouldn't try it. Even
if something like this worked, you wouldn't be able to write persistent
superblocks - this would foil your filesystem, I believe?
____________________________________________________
David Wood | Templar Studios Inc.
157 Ludlow Street N 600 | New York, NY 10002
tel 212.982.9360 | fax 212.982.9370
