Kernel Parameters For Mail Server Application

[vselvaraj]

Dear All
I am having HP 9000 L-1000 -HPUX 11.00 servers in ISP site.
I wanted to use the servers for mailing and Web applications.

I wanted to have "5000 concurrent requests"
on mail and webservers.

For the above case what are the Optimum Kernel parameters need to be changed?
can any one suggest me on this?
Thanks in advance
Selva...

[Stefan Farrelly]

From the mail side youre going to need to boost nproc and maxuprc to the roof, ie. 5000+. You will consequently need to increase a whole bunch of other parameters very high, ninode, nfile, nflocks.

[James R. Ferguson]

Hi:

A good general reference document for kernel parameters is:

http://docs.hp.com/hpux/content/KCparams.OverviewAll.html

...JRF...

[Dan Am]

you might also take a look at
"sendfile_max" , a special webserver-parameter.

[Dan Am]

you might also take a look at
"sendfile_max" , a special webserver-parameter.

[Dan Am]

you might alsohave a look at
"sendfile_max" - parameter for webservers

[Dan Am]

sorry, the server was playing hide and seek

[Shannon Petry]

If you increast the maxusers parameter, it should bump up most other param's for you. (This is using SAM to modify the kernel).
What you should do is configure to the estimated number of MAXIMIM SIMULTANEOUS connections. I.E. IMAP server holds one connection for each user, and at least 2 files open on average. How many users will be running IMAP clients and connecting simultaneously. (Now-days it is usually 85-95%). Since you wish to have 5000 users, this would translate into a maxusers=4250-4750. This will in turn increase nfiles, nproc, ninode, and more....

Hope it helps. (kernels are one thing that SAM is very good at!)

Shannon