tuning NFS from NFS stat results

[Rahul]

I ran "nfsstat -s" on our NFS server and get this result quoted below. I am
not much experienced with this so wanted any comments that fellow users
might have. Any red flags? Any opportunities for tuning?

[Apologies for the cross-post; I posted before on comp.os.linux.misc but
that is probably too generic a group for this question]

I had read that " for writes > 10%: Write caching (either array-based or
host-based, such as a Prestoserv card) would speed up operation." True?

Any other such rules of thumb?

------------------
Server rpc stats:
calls badcalls badauth badclnt xdrcall
349230699 0 0 0 0

Server nfs v3:
null getattr setattr lookup access readlink
26 0% 4715292 1% 232194 0% 179819 0% 2321884 0% 461
0%
read write create mkdir symlink mknod
191503923 54% 150048993 42% 23005 0% 35 0% 23 0% 0
0%
remove rmdir rename link readdir
readdirplus
5595 0% 0 0% 125 0% 0 0% 0 0% 2986
0%
fsstat fsinfo pathconf commit
8 0% 43 0% 0 0% 174135 0%
--------------------------------

[J.O. Aho]

Post by Rahul
I ran "nfsstat -s" on our NFS server and get this result quoted below. I am
not much experienced with this so wanted any comments that fellow users
might have. Any red flags? Any opportunities for tuning?
[Apologies for the cross-post; I posted before on comp.os.linux.misc but
that is probably too generic a group for this question]

Sorry, but that isn't cross posting but multi posting and is quite disliked.
Cross posting is when you post to more than one newsgroup at the same time by
having more than one newsgroup given in the posts header.

Multiposting is when you post to one newsgroup and then post to another
newsgroup...

Post by Rahul
I had read that " for writes > 10%: Write caching (either array-based or
host-based, such as a Prestoserv card) would speed up operation." True?

It may be true for SunOS/Sloaris, but don't have to be entirely true for Linux
or some other Unix flavor. Best would of course be test it yourself.

[Rahul]

Post by J.O. Aho
Sorry, but that isn't cross posting but multi posting and is quite
disliked. Cross posting is when you post to more than one newsgroup at
the same time by having more than one newsgroup given in the posts
header.
Multiposting is when you post to one newsgroup and then post to
another newsgroup...

Sorry! I do realize the distinction. My bad.