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> 10 August 2004
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On 10 August 2004 IBM announced additional sub-capacity terms for
some IPLA products. The pricing has not changed, but the calculation
of “required license capacity” may change and this can
lead to lower prices. The “required license capacity”
for these products is measured in MSUs. Determining the charge requires
converting the MSUs to “Value Units”. There are a number
of different formulas to convert MSUs to Value Units. Each product's
announcement typically includes the value unit conversion table
for the product. (LCS calculates
Value Units from MSUs and provides reporting. You can also use IBM's
Value Unit Converter
There are now three different terms and methods used as the MSU
base of the calculations.
- Execution-based Products
- The 4-hour rolling averages for these IPLA products are reported
directly by SCRT. Previously only 15 IPLA were reported by SCRT,
now the list
includes 45 products. Significance: Through SCRT's
NO89 parameters or actual execution information these products
are now reported at an LPAR level, rather than a machine level.
- Reference-based Products
- The MSUs for these products
are determined by referencing a “Parent” Product's
MSUs. The DB2 tools MSUs are based on a reference to the DB2 4-hour
rolling averages as reported by SCRT. (Previously the DB2 tools
MSUs were based on the z/OS 4-hour rolling averages). Note that
this is the amount of DB2 MSUs in the sysplex. CICS and
IMS are also “parent” product and have related tools.
Significance: Continuing the DB2 example, if
DB2 is in one LPAR of a machine that has three LPARs then only
the MSUs of DB2 in it's LPAR are used rather than the MSUs of
z/OS in all three LPARs.
- z/OS-based Products
- Products in this group use the z/OS or z/OS.e 4-hour rolling
average as reported by SCRT.
More information is available in IBM announcement 204-184,
on IBM's Software Pricing
website, and in particular in the 'IPLA'
section of the zSeries Exhibits website.
All IPLA products aggregate across the enterprise. When IBM processes
your SCRT reports they will add together all the MSU amounts for
a product to determine the “required license capacity”
in MSUs. This will be compared to the products “entitled license
capacity” which is the amount of each product that were specified
when the product was acquired. If the “required license capacity”
for an IPLA product is greater than your “entitled license
capacity” IBM will consider that you “ordering”
more value units for the product.
LCS detects any shortfalls and
this is included in the LCS IPLA Enterprise report providing an
early indication that the next IBM invoice will include more value
units for a particular product.
If your site is planning to acquire any IPLA products this announcement
should lower the software cost. For example if you were planning
to acquire IBM's Fault Analyzer for z/OS, an Execution-base IPLA
Product, before this announcement you would have used the MSUs of
the z/OS for the entire machine, and now you can acquire it based
only the MSUs of the LPARs where it will be used.
If you already have these IPLA products and the “required
license capacity” is reduced through these changes there is
no refund or credit available from IBM. You can use this excess
“required license capacity” to cover future growth or
anywhere in the enterprise where the tools are not currently licensed.
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Wednesday, 11 August, 2004