Installing and running the FirstLook utility to gather performance data.
| Article:TECH188410 | | | Created: 2012-05-09 | | | Updated: 2012-07-31 | | | Article URL http://www.symantec.com/docs/TECH188410 |
Problem
Installing and running the FirstLook utility to gather performance data.
Solution
The FirstLook package gathers general system performance data by executing Operating System level commands.
Such commands include:
- iostat
- netstat
- sar
and other Operating System specific commands useful for relevant data collection.
The FirstLook script should be executed while the performance issue in question is occurring.
The FirstLook package can be located in /opt/VRTSspt/FirstLook or obtained from the Veritas / Symantec ftp site.
The procedure to download the package follows:
# ftp ftp.veritas.com
The username to login is: symsupport
The password to login is: iS*pp8rT1
Set binary mode:
The password to login is: iS*pp8rT1
Set binary mode:
ftp> bin
Change directory to the location of the FirstLook package:
ftp> cd /pub/support
250 "/pub/support" is new cwd.
Download the package:
ftp> get FirstLook.tar.gz
ftp> quit
Unpack the package in an appropriate directory:
bash-3.00# gunzip FirstLook.tar.gz
bash-3.00# tar xfp FirstLook.tar
To execute FirstLook, invoke start_look. For example, executing FirstLook on Solaris:
bash-3.00# ./start_look -l
NOTE:
1. Always use the -l option to get lockstat data unless system is VERY heavily loaded.
2. Note - do not run more than one hour, the logs will overwrite after 60 minutes.
3. Try to start the script 5 minutes before the performance issue is expected to be seen.
Files will be saved in /vx_install/FirstLook/Flook_<date_time>_logs
*Example
saving FirstLook config info
os is type 3 5.10
saving patch information
Segmentation Fault - core dumped
saving package information
saving mount information
saving modinfo information
saving vxprint
starting logger in dispatcher class: RT
Optionally, it is possible to confirm that the FirstLook process is running:
bash-3.00# ps -ef | grep look
root 19984 1 0 08:58:19 pts/1 0:00 /bin/ksh /vx_install/FirstLook/Flook_sol
After enough time to collect useful information, or if the performance issue is intermittent and has stopped, stop FirstLook:
bash-3.00# ./stop_look
Once the process has stopped (60 seconds, or so), the results will be packaged into a tar file:
bash-3.00# ls -hl *.tar
-rw-r--r-- 1 root root 2.2M May 13 09:01 Flook_05_13_09_09:00:18_logs.tar
The FirstLook output file should be uploaded to ftp.veritas.com/incoming for analysis by Symantec Technical Support.
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Article URL http://www.symantec.com/docs/TECH188410
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