Prevent output of state change messages from Solaris vmstat

[chris]

Add "-q" parameter to vmstat command call on Solaris, to suppress state change messages being output and causing data collection to be corrupted.

See vmstat(1M).

[chris]

After looking up vmstat(1M) on docs.sun.com, I found that the "-q" option was not available before Solaris 10.

So we can't use this option, or not on Solaris versions before 10 anyway.

Solaris 9 vmstat(1M) says: During execution of this kernel status command, the "state" of the kernel can change. An example would be CPUs going online or offline. vmstat will report this as <<State change>>.

So it might be easy enough to ignore a line containing "State change".

Ref: http://docs.sun.com/app/docs/doc/817-3937/6mjgeag81?q=vmstat%281M%29&a=view