Following on from Friday we would next want to show
the model for change in our hardware.
In the report below in the top left hand corner
we are showing that once we reach the ‘pain’ point and then make a hardware
upgrade the CPU utilization drops back to within acceptable boundaries for the
period going forward.
In the bottom left hand
corner you can see from the primary results analysis that the upgrade would
mean that the distribution of work is more evenly spread now.
The model in the top right
hand corner has bought up an issue on device utilization with another disk so
we would have to factor in an I/O change and see what the results of that would
be and so on.
In the bottom right hand
corner we can see that the service level has been fine for a couple of periods
and then it is in trouble again, caused by the I/O issue.Whilst this hardware upgrade
would satisfy our CPU bottleneck it would not rectify the issue with I/O, so we
would also need to upgrade our disks.
When forecasting modeling
helps you to make and show recommendations on changes that will be required and when
they will need to be implemented.
On Wednesday I'll take a look at some examples
of VMware reports and how we can get our message across using simple reports.
Charles Johnson
Principal Consultant
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