Ross S. W. Walker wrote:
>> The entire use all four disks for /boot makes no sense if two disks
>> belonging to the same mirror for the lvm go down. Please stop this
>> nonsense about surviving everything to no benefit. You can have three
>> disks fail and still have a working /boot. For what?
>
> I think the idea of the 4 partition raid1 was more of, what else is he
> going to do with the 200MB at the beginning of each disk which he has
> because of partition symmetry across drives?
Personally I think he is being overly paranoid about more than 2 disks
failing at once since the odds are really slim that will happen, and not
paranoid enough about all 4 disks failing because most things that would
cause 2 to die (or be erased/corrupted/whatever) will kill all 4 of them.
> Makes sense to just dup the partition setup from one to the other and
> now with grub and a working /boot on each disk the order of the drives
> is no longer important, he can take all 4 out, play 4 disk monty, slap
> them back in and the system should come up without a problem.
One thing that might prove useful later is to leave the space for a
duplicate system (/) partition as a raid1 on the 3rd and 4th drives that
you don't use yet. Then when you want to upgrade to the next OS rev or
a different distribution, install on this unused partition and configure
grub to dual-boot. If you have any problem you can have the old version
back in the time it takes to reboot.
--
Les Mikesell
lesmikesell at gmail.com