How to Modify "Storage cycle of sa"
 

Hi

I want to reduce the file "sa" (/var/log/sa00). I don't use sar file so I remarked sa2 line in sysstat.

```code
# Run system activity accounting tool every 5 seconds
* * * * * root /usr/lib64/sa/sa1 5 12
# 0 * * * * root /usr/lib64/sa/sa1 5 12
# Generate a daily summary of process accounting at 23:53
#53 23 * * * root /usr/lib64/sa/sa2 -A
```

But 28 of them (sa00) file still is created. I want to reduce the cycle like 28 -> 7.

I tried to modified this file.
In the line below, I have modified the History value (28 -> 7). But it is not reflected.


```code
# vi /usr/lib64/sa/sa1
# Used only if ${SYSCONFIG_DIR}/sysstat doesn't exist!
#!/bin/sh
# /usr/lib64/sa/sa1
# (C) 1999-2012 Sebastien Godard (sysstat <at> orange.fr)
#
#@(#) sysstat-10.1.5
#@(#) sa1: Collect and store binary data in system activity data file.
#

# Set default value for some variables.
# Used only if ${SYSCONFIG_DIR}/sysstat doesn't exist!
HISTORY=7

SADC_OPTIONS=""
DDIR=/var/log/sa
DATE=`date +%d`
CURRENTFILE=sa${DATE}
CURRENTDIR=`date +%Y%m`
SYSCONFIG_DIR=/etc/sysconfig
umask 0022
[ -r ${SYSCONFIG_DIR}/sysstat ] && . ${SYSCONFIG_DIR}/sysstat
if [ ${HISTORY} -gt 28 ]
then
cd ${DDIR} || exit 1
[ -d ${CURRENTDIR} ] || mkdir -p ${CURRENTDIR}
# If ${CURRENTFILE} exists and is a regular file, then make sure
# the file was modified this day (and not e.g. month ago)
# and move it to ${CURRENTDIR}
[ ! -L ${CURRENTFILE} ] &&
[ -f ${CURRENTFILE} ] &&
[ "`date +%Y%m%d -r ${CURRENTFILE}`" = "${CURRENTDIR}${DATE}" ] &&
mv -f ${CURRENTFILE} ${CURRENTDIR}/${CURRENTFILE}
touch ${CURRENTDIR}/${CURRENTFILE}
# Remove the "compatibility" link and recreate it to point to
# the (new) current file
rm -f ${CURRENTFILE}
ln -s ${CURRENTDIR}/${CURRENTFILE} ${CURRENTFILE}
else
# If ${CURRENTFILE} exists, is a regular file and is from a previous
# month then delete it so that it is recreated by sadc afresh
[ -f ${CURRENTFILE} ] && [ "`date +%Y%m -r ${CURRENTFILE}`" -lt "${CURRENTDIR}" ] && rm -f ${CURRENTFILE}
fi
ENDIR=/usr/lib64/sa
cd ${ENDIR}
[ "$1" = "--boot" ] && shift && BOOT=y || BOOT=n
if [ $# = 0 ] && [ "${BOOT}" = "n" ]
then
# Note: Stats are written at the end of previous file *and* at the
# beginning of the new one (when there is a file rotation) only if
# outfile has been specified as '-' on the command line...
exec ${ENDIR}/sadc -F -L ${SADC_OPTIONS} 1 1 -
else
exec ${ENDIR}/sadc -F -L ${SADC_OPTIONS} $* -
fi
```

Is there anyone how to I can change storage cycle of sa file?

Thanks.

The configuration is done in /etc/sysconfig/sysstat (except if your distro does it differently). See also the sysstat manual page.

EDIT: Not sure if you can change the frequency of storing the data.

------

Thanks for your answer.
I already modified sysstat file. but It still doesn't seem to work.
After I modified the file, Do I have to restart some service file?!

```code
# cat /etc/sysconfig/sysstat
# sysstat-10.1.5 configuration file.

# How long to keep log files (in days).
# If value is greater than 28, then log files are kept in
# multiple directories, one for each month.
HISTORY=7

# Compress (using gzip or bzip2) sa and sar files older than (in days):
COMPRESSAFTER=31

# Parameters for the system activity data collector (see sadc manual page)
# which are used for the generation of log files.
SADC_OPTIONS="-S DISK"

# Compression program to use.
ZIP="bzip2"
```

I would add echo commands to the sa1 and sa2 scripts to see what's happening.

thanks. I will try that.