Run nmon on other server through script

UNIX AIX
1

Hai All,

Iam new to AIX unix. Im just tryin to automate my monitoring work and hence i have writen a basic script in which i am running nmon on multiple nodes from a main node.

say for ex: From server a :

ssh server b nmon -MB -s1 -c1 > nmon_now.txt

gave the password and result I got was

unknown Terminal is Unknown.

Whats going on. Can some one help me plz. I am egar to know what mistake im doing.
Please correct me.

Warm Regards,
Jayadeava

2

Hello,

This is happening because your are using nmon in interactive mode switch it to make something like one snapshot for 1 second and exit (check nmon -h).

1 Like
3

Thanks for the replay.
I have tried creating a script on server B which included as

export NMON=m
 
nmon -MB -s1 -c1 > nmon_now.txt

a=`grep -b Paging nmon_now.txt | awk '{print $12}' | cut -c 1-4`
b=`grep -b File nmon_now.txt | grep -v pages/sec | awk '{print $13}' | cut -c 1-4`
c=`grep -b Scans nmon_now.txt | awk '{print $10}' | cut -c 1-4`
d=`grep -b Cycles nmon_now.txt | awk '{print $8}' | cut -c 9-11`
e=`echo " $b + $c + $d " | bc`

echo " % Comp    = " $e
echo " % Noncomp = " $a
echo " % Client  = " $a

then I ran

ssh server B /home/asdf/above_script.sh

passwd given
it excuted that script on server B but i got null value as a result.

warm regards,
Jayadeava

4

Sorry for asking but currently I don`t have access to any AIX node(will have later this week) so I cannot test it but:

Does

ssh server_B 'nmon -MB -s1 -c1'

work normal?

If it works normal try to execute the script in debug mode/ run it locally to test it out - output will be helpful.

note: for ksh you can put

In the beginning of you script or use

ssh server_b  'ksh -x /home/asdf/above_script.sh'
5

A couple of things to think about:

Run nmon or 24 hours on a node. Use something like:

$NMON_EXECUTABLE -F $WORK_DIR/$NMON_LOG_FILE -s $DELAY -c $COUNT

Run the above from cron, with:
/home/unxsa/bin/collect_nmon_perf_data 898 96

DELAY=898 COUNT=96

Then use nmon analyzer to produce reports.

This doesn't give you instant monitoring of course.

6

IIRC you start nmopn in daemon mode with the "-F" parameter. Without it nmon will always come out in interactive mode, regardless of where you direct its output.

I hope this helps.

bakunin

1 Like
7

Thanks every one for valuable inputs and ideas... Of course its helpfull

Warm Regards,
Jayadeava

8

Just to finish up

your script should use

nmon -F nmon_now.txt -MB -s1 -c1

thanks to bakunin for the clarification :slight_smile: