How to Write Script

[Deben Bhattarai]

Hi Guys...

I want to write script which will check CPU and Memory Utilization every 2 hours and send a mail to monitoring team and when utilization reaches to a  certain level.

regards

Dbn

[Joe Clarke · Accepted solution]

Are you looking to do with with the Embedded Event Manager (i.e. on-box) or do you need to have an external script to collect this information?

[Deben Bhattarai]

Hi ,

I want to do with EEM. Please also guide for external scripts.

thanks in adv

Deben

[Joe Clarke · Accepted solution]

This applet assumes that your device only has one CPU:

event manager applet watch-cpu
 event snmp oid 1.3.6.1.4.1.9.9.109.1.1.1.1.11.1 entry-op ge entry-val 70 poll-interval 7200 get-type exact
 action 1.0 mail to addr@company.com from addr@company.com subject "High CPU" server 10.1.1.1 body "CPU is currently at $_snmp_oid_val %"

This will send an email to addr@company.com if the CPU utilization reachs 70%.

For memory, you could use:

event manager applet watch-mem
 event snmp oid 1.3.6.1.4.1.9.9.48.1.1.1.6.1 entry-op le entry-val 4194304 poll-interval 7200 get-type exact
 action 1.0 mail to addr@company.com from addr@company.com subject "Low Free Memory" server 10.1.1.1 body "Free memory is currently at $_snmp_oid_val bytes"

This will send an email if free memory dips below 4 MB.

For external scripting, I suggest you look into the Expect programming language.  You can use this to wrap programs like telnet and SSH to connect to devices and run arbitrary CLI commands.

[Deben Bhattarai]

HI Joseph,

Thanks a lot.

RGDS

Deben