When monitoring CPU utilization on a dual processor filer (FAS 880, 960, 980 etc), running sysstat can be misleading.
filer>sysstat 5
CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache
in out read write read write age
80% 4319 2412 0 2529 6772 5428 11098 0 0 25
79% 4213 3173 0 2753 7087 3192 11 0 0 25
82% 4432 3649 0 7902 5380 3414 1084 0 0 25
79% 3647 3573 0 2132 6161 3697 9365 0 0 25
76% 3981 3332 0 2718 5237 2726 11 0 0 25
A more accurate way is to use the -m option
filer>sysstat -m 5
ANY AVG CPU0 CPU1
100% 63% 26% 100%
100% 62% 25% 100%
100% 62% 23% 100%
97% 68% 54% 83%
100% 74% 77% 71%
This shows me that while my filer is busy, its not as bad as the previous output suggests
Thanks, unfortunately I do not have ssh access to my netapp filer… I telnet to it.
Anyways I found another way of logging the sysstat information. I just login from putty and enable the session log in it.
Nishesh
You can ssh to the filer and run the command. That way the output can be re-directed to whatever. I run that quite a bit when I am running statit commands etc, cause they tend to produce copious amounts of data.
something like
ssh -l root filer_name_here "sysstat 5" > /tmp/filerstats.txt
try it and let us know how it works out!
Do you know a way to pipe all the information coming from the sysstat command to a file. I know that piping would not work in netapp filer. Any idea on how to accomplish this thing.