Carl Wilhelm Soderstrom wrote:
> >> Mdadm is pretty good about warning you if you try something stupid. 
> 
> True; but I've still managed to blow away data accidentally using it. :)
> (Fortunately, I still had a copy of the data on another disk's partition; I
> sync'ed the wrong partitions together).

Was that back in the old raidtab days?  With current versions, if the 
partition types are FD (autodetect), all the working disks should be 
started at bootup, and since 1 disk is enough for raid1 to start it is 
hard to go wrong.  About the only way you can break a raid1 setup is to 
combine disks from different machines that were previously running as 
the same md device number.  Then one or the other will install but you 
won't know which ahead of time.  Raid5 can be more complicated, but I 
probably wouldn't do that in software.

-- 
   Les Mikesell
   lesmikesell AT gmail DOT com



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