Sounds to me like you have a network issue, NFS timeouts shouldn't occur unless there are lost packets -- if the disk is stuck in I/O wait the NFS process can still respond. Check your interfaces and switches for dropped/errored packets. You should be able to host hundreds of clients off a 1G, it would just be slower. The fai NFS config space hosts very little data, most of the action is spent transferring the .deb's via HTTP, and not NFS. Each step only requires reading in a couple small files (class definitions, .var files, scripts) and it would take an obscene amount of hosts accessing these small files to use up a 10g link.
If your config space is over a meg in total, I'd be surprised. This is not the issue. I have some large tarballs in mine (a few gig) and it moves along smoothly with 100 nodes going at once. On Mon, Sep 24, 2012 at 9:06 AM, Michał Dwużnik <michal.dwuz...@gmail.com>wrote: > Well, > > in my not quite so 10GbE env I experience NFS timeouts when doing 16 > machines at a time. > Moving the fai configspace onto ramdisk helps for the rooms equipped with > 1Gbps, > yields _lots_ of 'NFS not responding, still trying' for one forgotten room > which has still has 100Mbit.... > > Hence my original question (which seems to be in line with Nicolas > Courtel experience) > > Regards > Michal > > > > > > On Mon, Sep 24, 2012 at 2:03 PM, Thomas Lange < > la...@informatik.uni-koeln.de> wrote: > >> >>>>> On Fri, 21 Sep 2012 22:06:27 +0200, Michał Dwużnik < >> michal.dwuz...@gmail.com> said: >> >> > by the way - what are the default options of mounting the NFS by >> FAI when installing? >> > (rsize in particular, atime?) >> Using a squeeze install server and FAI 3.4.8 I get these NFS >> parameters from cat /proc/mounts >> >> 1.2.3.149:/srv/fai/nfsroot-squeeze64 /live/image nfs >> ro,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,nolock,proto=tcp,port=65535,timeo=7,retrans=3,sec=sys,mountport=65535,addr=1.2.3.149 >> 0 0 >> >> IMO there's no need to set the rsize parameter. >> >> -- >> regards Thomas >> > > > > -- > Michal Dwuznik >