SA1 - Online Linux Manual PageSection : 8
Updated : NOVEMBER 2020
Source : Linux
Note : Linux User's Manual
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NAMEsa1 − Collect and store binary data in the system activity daily data file.
SYNOPSIS/usr/lib64/sa/sa1 [ --boot | --rotate [ iso ] | --sleep | interval count ]
DESCRIPTIONThe sa1 command is a shell procedure variant of the sadc command and handles all of the flags and parameters of that command. The sa1 command collects and stores binary data in the current standard system activity daily data file. The standard system activity daily data file is named saDD unless sadc's option -D is used, in which case its name is saYYYYMMDD, where YYYY stands for the current year, MM for the current month and DD for the current day. By default it is located in the /var/log/sa directory. The interval and count parameters specify that the record should be written count times at interval seconds. If no arguments are given to sa1 then a single record is written. The sa1 command is designed to be started automatically by the cron command.
OPTIONS--boot This option tells sa1 that the sadc command should be called without specifying the interval and count parameters in order to insert a dummy record, marking the time when the counters restart from 0. --rotate [ iso ] Use this option to tell sa1 to insert a record of statistics to the standard saDD system activity daily data file of the previous day. This should be done shortly after midnight (on day DD+1) in order to make sure that the data file covers the whole day, including the last interval of time just before midnight. Adding the iso keyword tells sa1"touse saYYYYMMDD instead of saDD as the standard system activity daily data file name. --sleep This option tells sa1 that the sadc command should insert a comment indicating that the system is entering or leaving sleep mode (i.e. system suspend or hibernation).
EXAMPLETo collect data (including those from disks) every 10 minutes, place the following entry in your root crontab file: 0,10,20,30,40,50 * * * * /usr/lib64/sa/sa1 1 1 -S DISK To rotate current system activity daily data file, ensuring it is complete, place the following entry in your root crontab file: 0 0 * * * /usr/lib64/sa/sa1 --rotate
FILES/var/log/sa/saDD
/var/log/sa/saYYYYMMDD The standard system activity daily data files and their default location. YYYY stands for the current year, MM for the current month and DD for the current day.
AUTHORSebastien Godard (sysstat <at> orange.fr)
SEE ALSOsar(1), sadc(8), sa2(8), sadf(1), sysstat(5) https://github.com/sysstat/sysstat
http://pagesperso-orange.fr/sebastien.godard/ 0
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