I hope somone can help me.....
I have a Thin Client setup, and I'm trying to make it more fault
tollerant.
The two things that seam to be the things to focus to to
achieve this are NFS and X.
Ok with X if I can find the right settings I can run serveral X
servers and if the server goes down switch to a different X server. If
anyone has any experance with doing this. Please say. If the server has
failed you've lost anything running on that machine anyway, so the only
thing you can do is get things back quickly.
NFS seams a bit more difficult and likly so so. NFS seams a bit
terrible and I guess this is where the problems are going to lie. Any
ideas would be most handy.
Maybe what is needed is a better system than NFS but what? If we
could use Samba it would be another option. Perhaps we need a remote disk
with a large read cache so to reduce load on the server 9 times out of ten
the file that the client actually wants (since is readonly anyway) is
actually in the cache.
If you don't want Local Apps maybe the way to go is not to pivot
root at all... My ltsp/i386 is 194Mb Now if we cut that down to the bare
minimum, (No Fonts (use a font server), No Local Apps, etc) could we
reduce that enough to a size that is small enough to fit in memory and run
from ram. Ok so my thin clients have not got enough memory for this, but
in many peoples cases (memory is cheap afterall) if we can get it to 100Mb
with 256Mb of memory you should be able to run it all from the clients
memory (thats not much memory really) Ok Booting will take longer but
would it work? (But 100Mb would only take 2 minites to download
(100Mb=838,860,800bits (In theory) so on a 100Mbits network thats 8.3
seconds (I know that never happerns!!!)) (This is only and idea but)
Back to the real world my thin clients are still freezing randomly
(largest uptime is 11 days but somtimes they do not last long enough to
boot) Is there anything I can do to moniter them so that when and if one
freezes I can find out whats happerning, more logs etc.
Please help.
Peter Childs
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