On Thu, 13 Jan 2011, LEES, Cooper wrote:
Hi All,
I am mounting NFS from a Sun (Oracle) x4540 using the following options:
plumper.ansto.gov.au:/cesspool/home /home nfs
defaults,bg,intr,hard,noacl 0 0
(Have played with noac as well etc.)
Suggest the book "Managing NFS and NIS"--some useful info
particularly when the server side is a Sun.
Other main thing to do is to play with rsize and wsize
which default to 1024. We use 32768 for both on
most of our mounts, also try proto=tcp
1)
Is there better options I should use to obtain better performance? (e.g.
noac will but I would the server to commit to disk and flash should help
my speed there)
2)
Is there a package (preferably within Scientific Linux Packages - if not
easily compilable) to do benchmarks on a mounted NFS filesystem?
Possibly print out latency and IOPs? I ask as I am about to add a F20e
flash card to my server and want to see the difference in performance I
can get with the Flash card and no flash card.
Ta,
----
Cooper Ry Lees
HPC / UNIX Systems Administrator - Information Technology Services (ITS)
Australian Nuclear Science and Technology Organisation
T +61 2 9717 3853
F +61 2 9717 9273
M +61 403 739 446
E cooper.l...@ansto.gov.au
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Steven C. Timm, Ph.D (630) 840-8525
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Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Group Leader.
Lead of FermiCloud project.
