SUMMARY: NFS mount options
2007-12-25 4:49:00
First of all, I made a mistake, and added the noac option to the server
instead of the client. So the "noac" option is available, I just used it
on the wrong server.
Thanks to: Pablo Jejcic, Dave Mitchell, Tim Chipman, Mike Demarco,
Martin Wheatley, Bernd Schemmer, Brandon Haberfeld
Second mistake, I found articles on the web saying that noac will
improve my NFS performance, which I am told now is not true. Disabling
the attribute caching will actually make my performance worse instead of
improving it.
Thanks to: Ben Garrett, Tim Chipman, Martin Wheatley, Brandon Haberfeld
I will have to do some more digging, to find out what exactly is causing
my NFS mounts to be slow.
Thank you very much for all the feedback
Dirk
[ORIGINAL MESSAGE]
I am hoping that you can shed some light on this for me. I am
experiencing bad NFS performance. I do not have much experience with
this. My support engineers told me to set the "noac" option in the
/etc/vfstab file, to improve my NFS performance (after they also did
some searching on the web).
I tried Google, I tried the sysadmin guides, and cannot find examples of
how this is done. I tried it myself by just putting in in the vfstab
file, but received an error doing this.
Is this option supported in Solaris 9 ?
The line in /etc/vfstab (after I changed it):
/dev/vx/dsk/testdg/intest /dev/vx/rdsk/testdg/intest /intest ufs - yes
nolargefiles,suid,noac
The error I received:
mount /intest
mount: /dev/vx/dsk/testdg/intest on /intest - WARNING unknown options
"noac"
Any help will be appreciated
Dirk Moolman
Database and Unix Administrator
HEALTHCORP
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