On Fri, Mar 02, 2012 at 03:33:19PM +0200, Harald Hannelius wrote: > The pattern for me starts to look like this; > > max-write-speed ~= <link speed>/nodes. This is most odd. If you are using a regular replicated+distributed (not striped) volume, then each file operation will be directed to one pair of servers. The dd should just hit two servers and the other two will be idle. So I don't see why your 4-node setup should perform any differently to a 2-node one.
