From: Uwe Homann (Uwe.Homann@uni-x.com)
Date: Wed Oct 09 2002 - 03:49:27 EDT
Hi All,
we have a serious performance-problem with a Sun Ultra 450 (4 Procs, 2GB
RAM) and an EMC Celerra NFS-Server.
The Sun is built up with GBit Fibre-Channel adapters to a EMC Raid-System
as Harddisk, but we have very poor performance to the NFS-Server.
The problem seems to be that there happens no caching, and the performance
gets worse the longer the machine keeps running.
I've tested it with Sun VTS, and no problems were found.
The same NFS share is very fast with Linux-Boxes (at least 10 times faster
when caching begins), but we did'nt get our Sun near that performance...
In short the Specs:
-Sparc 450, 4 Procs, 2GB RAM
-Solaris 2.8
-100MBit built-in hme0 (did'nt get faster with GBit-Ethernet, either)
-Cisco Catalyt 4000
-EMC Celerra, 1GBit Interface, NFS 3+2
-Mounted 4 NFS-Volumes via TCP, some via automount
-less than 20 users
The machine runs Oracle (not via NFS) and mostly gcc or perl processes
Does anyone have a clue?
We've already tested some /etc/system tweaks:
set rpcmod:clnt_max_conns=2
set nfs:nfs_max_threads=16
set nfs:nfs3_max_threads=16
set nfs:nfs3_max_transfer_size=65536
Please help us, we need that machine for debugging and release runs of our
software for solaris :-(
Thanks for now
Kai
-- Kai Schwermann, Vorstand Forschung und Entwicklung / CTO uni-X Software AG Mindener Str. 127 49084 Osnabr|ck, Germany Tel. +49-541-71008-0 Fax +49-541-71008-499 http://www.uni-X.com schwermann@uni-X.com ____________________________________________________________________________ Neuigkeiten zu unseren Software-Lvsungen f|r Mediation, Billing & IT-Controlling erhalten Sie unter http://www.uni-X-software.de. Nehmen Sie einfach Kontakt mit uns auf. ____________________________________________________________________________ _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 23:25:05 EDT