[Lustre-discuss] Gluster then DRBD now Lustre?

[nathan at robotics.net]

On Mon, 16 Jun 2008, Cliff White wrote:

> Umm....Lustre is not a replacement for DRBD, so we're very confused over 
> here. Lustre is a way of making a big distributed filesystem out of a bunch 
> of storage nodes. We don't do replication, it's basically RAID 0.

So any node does you lose the data?

> So, you could use Lustre to make one big filesystem out of two local servers. 
> You could even make one big filesystem out of your multiple locations over 
> the WAN (it's been done).
>
> But, you can't use Lustre to mirror data. (yet, wait a year)

The plan is to add more and more servers, so the hope was to be able to 
start with 2 and get some redundancy and then grow.

> So I think your Gluster expedition might have confused you. Gluster and 
> Lustre are only words that sound somewhat the same, there is _no_ 
> relationship between the two. (except the fact that there is some filesystem 
> goop involved) You're comparing apples to knee socks if you are attempting to 
> map gluster experience to a Lustre setup.

Hmm, I would say they are a little more like each other then that, but I 
understand.

-Nathan