Re: debian software raid1

[Iordan Iordanov <iordan@cdf.toronto.edu>]

Hey guys,

On 04/19/11 08:25, Mathias Burén wrote:
> http://www.debian-administration.org/articles/238
>
> Plenty of articles on the net on how to do that.

There is a lot of information, but also, I suspect there is a lot of 
disagreement. One thing that I could not find a definitive answer on was 
the question of whether or not to mirror swap.

There are articles that propose mirroring partitions independently 
(rather than the entire disk), and not mirroring swap, but adding two 
swap partitions with equal priority. On the other hand, there are people 
who point out that in the event where one of the disks in the mirror 
dies, the machine may cease to function, because a part of its "memory" 
will have disappeared. However, making swap part of the mirror opens a 
whole new can of worms. For instance, could there be a deadlock 
possibility (for example after a suspend/resume cycle) where mdadm is 
waiting for something which is swapped out onto swap which is mirrored?

It would be nice to have a discussion among people who have experience 
with all of this.

Cheers,
Iordan
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html