[Beowulf] Building new cluster - estimate

Chris Samuel csamuel at vpac.org
Wed Aug 6 19:48:32 EDT 2008


----- "Robert G. Brown" <rgb at phy.duke.edu> wrote:

> And even on Linux machines, NFS has been, well, "functional"
> is a good way to describe it.

It actually seems to work pretty well these days, our
general config is:

1) No automounter
2) Hard mounts (so jobs just hang if they loose contact)
3) NFS over TCP (NFS over UDP is sooo 1990's :-))
4) Jumbo frames (9000 byte MTUs) on the NFS network
5) NFS file server has hardwired fsid's to prevent stale file handles on a reboot
6) Debian, not RHEL on the server
7) XFS for /home on the server

cheers,
Chris
-- 
Christopher Samuel - (03) 9925 4751 - Systems Manager
 The Victorian Partnership for Advanced Computing
 P.O. Box 201, Carlton South, VIC 3053, Australia
VPAC is a not-for-profit Registered Research Agency
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