Yes, I too have heard of one vendor that checks to see if a zIIP is available 
and if not does not setup for the zIIP. So for this vendor and their software 
that would use a zIIP they are not included in the eligible time and hence not 
in any analysis of the eligible time. 

Since a couple of references have been made to my tools let me jump in. The way 
I tackle this in LCS is to analyze the eligible time and then simulate or model 
moving a portion of it to the zIIP processors. The site controls how much is 
moved via parameters. After the work is moved to the zIIP the maximum 
simultaneous four-hour rolling averages (S4HRA) are recalculated and then the 
software charges are estimated. You could move a lot of work to the zIIP but if 
it does not lower the maximum S4HRA that your IBM MLC charges are based on you 
are not saving money. You cannot analyze just a week, you need to study entire 
months. (The weird months that begin on the 2nd and end on the 1st). 

LCS reporting also includes analysis of what your bill would be without any 
zXXP engines when you do have them. This shows the value the zXXPs are 
providing month after month. 

Al Sherkow, I/S Management Strategies, Ltd.
Consulting Expertise on IBM Workload License Charges (WLC)
+1 414 332-3062

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