Re: General question about a testbed

[Wido den Hollander <wido@widodh.nl>]

Hi,

On 03/08/2012 09:37 AM, Sven Sternberger wrote:
> Hello!
>
> I want to set up a testbed for evaluating
> ceph. At this point we want to look at the performance
> and the administration of a small cluster (4 machines,
> 60TB)
>
> So neither ceph nor btrfs are good supported by
> ScientificLinux which we use.

Instead of btrfs you could also use ext4 (with user_xattr!).
>
> It would be helpful if you could point out which
> linux distributions gives an easy starting point.
> Should we use an recent kernel, or go with the distribution
> default.

I'm running my cluster(s) on Ubuntu 11.10. For the OSD's you don't have 
to run the latest kernel, but if you decide to use btrfs it could be a 
good idea to use a new kernel. btrfs is still under development, it 
get's better with every kernel.

I think the main test systems of the dev's are running Debian, so that 
might be a good choice. Debian packages are available on the Ceph 
website or can easily be build from source.

When you want to use the kernel client (CephFS / POSIX filesystem) I 
recommend using a recent kernel on the client, same story was with btrfs.

Wido

>
> best regards!
>
> Sven
>
>
>
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