Home / Solaris 10 / How to enable SAR(System Activity Reporter) in Solaris?

How to enable SAR(System Activity Reporter) in Solaris?

SAR:(System Activity Reporter)

SAR is a legacy system monitoring  tool which is  used to report  CPU activity, system loads average, memory/paging, LUN load, network activity.We can add SAR in crontab to monitor the server through out the day and this will help you to find the system disk I/O,memory utilization,CPU utilization any given time.Once you have the sar output files, you can use ksar graphical tool to make awesome graph.

 

Here we will see how to activate the SAR on Solaris 10. 

Schedule the SAR reports via crontab:
To run those scripts regularly during the business hours , we need to enable the three lines, in the crontab of the user sys:

# crontab -l sys

0 * * * 0-6 /usr/lib/sa/sa1
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A

Entry:1
0 * * * 0-6 /usr/lib/sa/sa1
This writes a record to /var/adm/sa/sa<dd> on the hour, every hour, seven days a week.
Entry:2
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
This writes a record to /var/adm/sa/sa<dd> twice each hour during peak working hours: at 20 minutes and 40 minutes past the hour, from 8 a.m. to 5 p.m., Monday through Friday.Thus, these two crontab entries cause a record to be written to /var/adm/sa/sa<dd> every 20 minutes from 8 a.m. to 5 p.m., Monday through Friday, and every hour on the hour otherwise.
 
Entry:3
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A
This  entry runs the shell script named sa2 at 6:05 p.m., Monday through Friday. The sa2 script writes reports from the binary data. The shell script sa2, a variant of sar, writes a daily report in the file /var/ adm/sa/sar<dd>. The report will summarize hourly activities for the day.
 
You can refer the sar data any time using the below command.
# sar -f  /var/adm/sa/sa12
SunOS mygz 5.10 Generic_144500-19 sun4u    07/12/2012
00:00:46    %usr    %sys    %wio   %idle
01:00:19      29      43       0      29
02:01:07      38      41       0      21
03:01:00      38      40       0      23
04:00:40      24      38       0      38
05:00:37      19      37       0      44
06:00:53      14      34       0      51
07:00:47       8      32       0      59
08:00:46       8      33       0      59
08:20:09      35      42       0      23
08:40:07      15      35       0      50
09:00:45      11      33       0      56
09:20:09      11      33       0      56
09:40:05      11      33       0      56
10:00:42       9      33       0      58
10:20:11      10      33       0      57
10:40:06       9      33       0      58
11:00:51      10      34       0      56
11:20:08      16      35       0      49
11:40:10      17      35       0      49
12:00:37      24      50       0      26
12:20:15      16      49       0      35
12:40:08      16      47       0      37
Average       20      37       0      43
To see the memory usage details .
# sar -r -f sa12
SunOS unixarena1 5.10 Generic_147147-26 sun4u    03/09/2013
00:00:03 freemem freeswap
00:05:02 17158345 800239210
00:10:03 16997085 796846363
00:15:02 17030902 797477396
00:20:03 17085893 797904230
00:25:02 17013282 797736864
00:30:03 17087080 798849105
00:35:02 17109713 798723614
00:40:03 17079375 798843148
00:45:04 17096308 799010576
Average  18815342 825094432

How to install and activate SAR on Solaris 11 & zones  ?

SAR package is not installed along with zone installation on Solaris 11.  If you don’t find sar command on Solaris 11 / zones , you need to install  using  “pkg install” command.
Make sure that , you have connected to valid support repository or local IPS repository.

1. Use “pkg search” to find the package name.

root@UA-SOL11:~# pkg search '/usr/bin/sar'
INDEX      ACTION VALUE       PACKAGE
path       link   usr/bin/sar pkg:/system/accounting/legacy-accounting@0.5.11-0.175.1.2.0.2.2

2. Install the package using “pkg install” .

root@UA-SOL11:~# pkg install pkg:/system/accounting/legacy-accounting@0.5.11-0.175.1.2.0.2.2
           Packages to install:  1
       Create boot environment: No
Create backup boot environment: No
            Services to change:  1

DOWNLOAD                                PKGS         FILES    XFER (MB)   SPEED
Completed                                1/1       144/144      0.2/0.2 50.1k/s

PHASE                                          ITEMS
Installing new actions                       190/190
Updating package state database                 Done
Updating image state                            Done
Creating fast lookup database                   Done

The following unexpected or editable files and directories were
salvaged while executing the requested package operation; they
have been moved to the displayed location in the image:

  var/spool/cron/crontabs/sys -> /var/pkg/lost+found/var/spool/cron/crontabs/sys-20160113T123511Z
root@UA-SOL11:~#

 

3. Update the crontab for user “sys”.

root@UA-SOL11:~# crontab -e sys
#ident  "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.2   */
#
# The sys crontab should be used to do performance collection. See cron
# and performance manual pages for details on startup.
#
0 * * * 0-6 /usr/lib/sa/sa1
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A
~

4. Make sure that user “sys” is present in /etc/cron.d/cron.allow but not in cron.deny.

You should be able these the performance statistics collections with the configured interval.

 

Thank you for reading this article.Please leave a comment if you have any doubt ,i will get back to you as soon as possible.
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