[gpfsug-discuss] SMB performance issues with CES

[Leonardo Sala]

Hallo everyone

I have just notices some possible performance issues on SMB when using 
CES, at least compared to NFS. Using NFSv4 I can easily get 1 GB/s on a 
single client (linux), while when using a CIFS mount I get tops 500 MB/s 
on a single client. Using two separate servers as clients gets a 1 GB/s 
total throughput on the CES server, so I would say there not a strict 
limitation on the CES server itself. Any hints on how to improve this / 
debugging hints? I spent some time on IBM documentation and some user 
groups talks, but got no improvement...

Thanks!

cheers

leo

-- 
Paul Scherrer Institut
Dr. Leonardo Sala
Group Leader Data Analysis and Research Infrastructure
Group Leader Data Curation a.i.
Deputy Department Head Science IT Infrastructure and Services department
Science IT Infrastructure and Services department (AWI)
OBBA/230
Forschungstrasse 111
5232 Villigen PSI
Switzerland

Phone: +41 56 310 3369
leonardo.sala at psi.ch
www.psi.ch
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