topic Re: Which Kernel Parameter? in Operating System - HP-UX

Which Kernel Parameter?

Jayson Hurd_2 — Thu, 03 Jun 2004 10:57:24 GMT

The other week we ran out of pts sessions. Existing connections were ok, but we couldn't add any ssh/terminal sessions. So we killed some old ones to free up. Is there a kernel parameter where I can increase the allowable pts sessions?

Re: Which Kernel Parameter?

KapilRaj — Thu, 03 Jun 2004 10:59:27 GMT

u can increase from sam "the number of pty's "

man insf / mksf

Kaps

Re: Which Kernel Parameter?

Steven E. Protter — Thu, 03 Jun 2004 11:00:24 GMT

nstrtl
nstrpty

Change them with sam or manually, boot the box, then:

insf -e

Done.

SEP

Re: Which Kernel Parameter?

Bruno Ganino — Thu, 03 Jun 2004 11:13:47 GMT

Look this thread
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=593168
HTH
Bruno

Re: Which Kernel Parameter?

Navin Bhat_2 — Thu, 03 Jun 2004 12:18:45 GMT

I would recommend that you bump up all of the below some reactive and some proactive.

npty
nstrpty
nstrtel
maxusers
maxuprc
max_thread_proc

Re: Which Kernel Parameter?

Geoff Wild — Thu, 03 Jun 2004 12:24:28 GMT

Try the following - what are yours set to?

npty 60 Number of ptys (Pseudo ttys)
nstrpty 60 Max Number of Streams-Based PTYs
nstrtel 60 Number of Telnet Session Device Files

Rgds...Geoff

Re: Which Kernel Parameter?

Rita C Workman — Thu, 03 Jun 2004 13:51:33 GMT

If all you needed were more pts sessions you only need to increase three parms in your kernel mentioned above:

npty
nstrpty
nstrtel

These take very little in resources. I generally have the habit of starting boxes off with 400 for small-average and 800 or more for systems with larger loads on them.

Rgrds,
Rita