[luau] Restoring a Software RAID1 System (RH9)

[MonMotha]

Blake Vance wrote:
...

> Do I attach "new" as the primary 
> master? Then what?
> raidhotadd /dev/md? /dev/hd?
> 
> If I don't respond right away, it's because I'm calling it a night.
> 
> TIA,
> Blake
> 

Here's what you need to do:

First, Attach the new drive in the same position as the failed one (though this 
isn't strictly required, it keeps things nice).  Then:

1.  Partition the new hdd the same way as the old one (refer to fdisk info on 
the old one).  The partition type for the RAID partitions should be FD (I think, 
it's whatever "Linux RAID Autodetect" is).

2.  Run "raidhotadd /dev/md? /dev/hd?".  It should return nothing, and dmesg 
should indicate that it is beginning a rebuild.  cat /proc/mdstat for a progress 
indicator.


This is what I've done every time I've lost a drive in a RAID array (and believe 
me, I've lost a bunch since I tend to use freebie drives that are already on 
their last legs anyway).  Seems to work fine every time.

--MonMotha