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nfs consuming CPU after 11.0 install

 
Haitham Hamad
Regular Advisor

nfs consuming CPU after 11.0 install

I did 5 fresh installs of HP-UX 11.0 on Dservers over the last two months but this is the first time to get nfs trouble. I have 4 nfsd and 1 pcnfs_server. Each one of the nfsd is using 6-9% CPU (using the top command). This is slowing down the system considerably.
Any suggestions?
4 REPLIES 4
A. Clay Stephenson
Acclaimed Contributor

Re: nfs consuming CPU after 11.0 install

Hi:
I would check out this link; it's a pretty good
NFS checklist.

http://us-support.external.hp.com/cki/bin/doc.pl/sid=cfe8c7cb04f9dcac98/screen=ckiDisplayDocument?docId=200000049145083
If it ain't broke, I can fix that.
Haitham Hamad
Regular Advisor

Re: nfs consuming CPU after 11.0 install

Thanks for the link, it was really helpfull. We are still experiencing the problem with the nfs daemons consuming CPU. I have identical 3-D370s and 2-D350 systems. On the D370's, the nfs daemons rarely show on the top command but on the last D350 we upgraded, each one of the four daemons is consuming about 4% of CPU. With Oracle running on all systems, it is slowing them tremendously. I talked with HP and they send a document to find out if the system is CPU, memory, disk bound but it seems it is none of the above. We stopped a midaemon daemon which was also consuming about 4% CPU. Any suggestions??
Haitham Hamad
Regular Advisor

Re: nfs consuming CPU after 11.0 install

It seems that stopping the measureware agent slowed down the consumption of the CPU by the nfs daemons. I started the mwa again and the CPU usage is still ok. Is the sequence of mwa and nfs daemons startup making the problem here???what is the relationship between them?
Vincenzo Restuccia
Honored Contributor

Re: nfs consuming CPU after 11.0 install

See 'man' nice(1) and renice(1).