Does someone know why whenever I type the command: "sar -u" or "sar -u -o /test/sar_log", always gives me the error, "Cannot open /var/log/sa/sa19: No such file or directory"? Your help is highly appreciated. Thank you.

If you dont specify the intervals, then sar by default looks to read the file at location /var/log/sa. The name of the file is sa followed by todays date.So you get sa19. to get the output you have to specify intervals like sar -u 1 10 or there should be a sar-written binary file at /var/log/sa created using the -f option. check out man sar. Anand

Thanks. I will try that. Pete

Check to see if the sar program is running in your crontab. It is needed to populate the /var/log/sa/sa## files.

Hi George, I'm haven't put the SAR statement in the crontab yet. But if I type, for example, sar -u 1 10, should it record the result, /var/log/sa/sa##, where ## is the log date? sar -u 1 10 seems to work fine but only displays the result on screen. Of course, unless I specific a file with the -o option, then it will output the result to the specific file I specified. Do you know why? Pete