HP UX Server is slow

[sreekanthtm]

My server is running very slow, What do I do? Iam a beginer in HP UX admin. Pls tell me step by step.If anybody need aditional information pls feel free.
OS - Hpux- 11i

Regards
Sreekanth

[Arunvijai_4]

Hi Sreekanth,

What is slow ? Telnet or network ?? How much memory you have in your HP-UX server? Check with /opt/ignite/bin/print_manifest.

Your question is too generic. Be specific about the area.

-Arun

[Steven E. Protter]

Shalom Sreekanth,

Big topic as Arun notes.

What does the server do? What is its function? Does it run oracle? etc

First thing to do maybe is to collect some perf data and see if there are bottlenecks.

http://www.hpux.ws/system.perf.sh
It runs background with minimal modifcation.

There are weeks worth of courses on system tuning available from HP education.

SEP

[BPatrick]

You could check what processes are running on your system using the command top and analyze cpu usage and memory etc. which will give you a idea on what is causing your system to slow down

Patrick

[wip]

Hi Buddy,

HP has tool like "Performance Monitor" in HP Called Glance.Type "glance" and see the performance bars showing %utilization of cpu/mem and disk.

-WIp

[Marvin Strong]

Well the canned answer is "it depends"

However, what you have provided is way to vague for anyone to really provide useful assistance.

Tell us what is wrong and be specific.

outside of that look at

man vmstat, man iostat, man swapinfo.

[spex]

Sreekanth,

Here's an introduction to Unix systems administration. It includes many commands to measure system performance:

http://www.sikh-history.com/computers/unix/perform.html

Also check out the "HP Performance Cookbook" attached to this posting. It describes common performance problems and their solutions.

The first thing I would check for is paging:

# swapinfo -tam
# sar -w 5 5
# vmstat 5 5

Then check your buffer cache hit ratio:

# sar -b 5 5

Also check top CPU and memory users:

# top
# UNIX95= ps -e -o "pid,user,vsz,args" | sort -nr -k 3 | more

PCS

[sreekanthtm]

Hello All

This Question was asked in an interview
They expects step by step troubleshoot.
You are working remotely on the server
Regards
Sreekanth

[freddy_21]

do you have glance?

glance will be help you to analyze your performace.


thanks
freddy

[sreekanthtm]

What are the basic things to be check
Rgds
Sreekanth

[freddy_21]

using top command to check your cpu utilisation

uisng sar -d 1 5 to check your disk utilisation
check avwait and avserv. avwait must least than avserver. if avwait bigger than avserve, you must suspect disk bottle neck

for network, try ftp big file from ur pc to your server calculate how long transfer time.

check syslog too. any problem with your server.


if you have glance it more easier. if you have aplication CD you can install trial version ( 30 days only)


thanks
freddy

[sreekanthtm]

Thanks to all