Of showers and sysstat


I was asked by a client yesterday in passing how to check CPU utilization on one of their NetApp filers.  I didn’t immediately know where to go and we quickly moved on to something else.  So as I was showering this morning, as I do many mornings, I remembered that, of course, you can use sysstat to view performance data.  Anyways, this is a real nice way to view instantaneous general performance data.  Options for this command are shown below.

deathstar> sysstat ?
usage: sysstat [-c count] [-s] [-u | -x | -m | -f | -i | -b] [interval]
-c count        – the number of iterations to execute
-s              – print out summary statistics when done
-u              – print out utilization format instead
-x              – print out all fields (overrides -u)
-m              – print out multiprocessor statistics
-f              – print out FCP target statistics
-i              – print out iSCSI target statistics
-b              – print out SAN statistics
interval        – the interval between iterations in seconds, default is 15 seconds

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