Large FOSS filesystems, was Re: [Beowulf] 512 nodes Myrinet cluster Challanges

[Warren Turkal]

On Thursday 04 May 2006 12:36, Michael Will wrote:
> Can you use LVM to do mirroring and striping at the same time, or do you
> need to use
> software raid1 below LVM for that?
>
> When having multiple chassis, the risk is that a chassis goes down and
> that part of a striped
> LVM can affect the whole filesystem, going offline and if the drives
> became corrupted for some
> reason, it can have corrupted all of your data. If you used mirroring
> between two physical volumes
> on two enclosures and then stripe across those mirrors, you could
> mitigate that.

You might check out EVMS.

wt
-- 
Warren Turkal, Research Associate III/Systems Administrator
Colorado State University, Dept. of Atmospheric Science