[Linux-cluster] Maximum number of nodes

[Celso K. Webber]

Hi Steve,

I believe the 16 node is a limit of qdiskd only, isn't it? CMAN node limit can be much higher, I believe. I don't know about GFS/GFS2 node limits, on the other hand.

>From the Cluster FAQ at http://sources.redhat.com/cluster/wiki/FAQ/CMAN:

"Is quorum disk/partition reserved for two-node clusters, and if not, how many nodes can it support?Currently a quorum disk/partition may be used in clusters of up to 16 nodes."

Regards,

Celso.


----- Original Message ----
From: Steven Whitehouse <swhiteho at redhat.com>
To: linux clustering <linux-cluster at redhat.com>
Sent: Tue, May 4, 2010 12:55:38 PM
Subject: Re: [Linux-cluster] Maximum number of nodes

Hi,

On Fri, 2010-04-30 at 14:37 -0500, Dusty wrote:
> Hello,
> 
> Regarding the component versions of "Redhat Cluster Suite" as released
> on the 5.4 and 5.5 ISOs...:
> 
> What is the maximum number of nodes that will work within a single
> cluster? 
> 
The limit is 16 nodes.

> From where do the limitations come? GFS2? Qdisk? What if not using
> qdisk? What if not using GFS2?
> 
> Thank you!
The limit is down to what we can reasonably test, and thus what is
supported. The theoretical limit is much higher and it may be possible
to raise the supported node limits in future,

Steve.