Today I'll take a look at ways to manage cost and provide a summary of my series.
Some of the ways in which you can look at reducing or managing costs are below and we'll start with zIIP Processors.
zIIP Processors
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Specialty processors for offloading work
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Workloads using zIIP Processors do not factor into the
License Charges
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Originally setup for DB2 in 2004
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Work run on zAPPs can run on zIIPs (i.e. Java)
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Third party products can use zIIPs with API licensed
from IBM
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Talk to your vendors
Bottom line
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Lowers cost of computing for eligible workloads
To Cap or not to Cap?
Capping the
Environment is a means of Manual or Automatic control of resources to ensure the
MLC is stable but optimize the system performance.Modification of the LPARs Defined Capacity (DC) to
account for workload behavior and the needs of all the LPARs.
Soft Capping
ManuallyThere are some issues with Soft Capping manually:
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Personnel constantly monitoring
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Adjustments may not be made in time
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Possible errors causing unsuspected results
Soft Capping –
Automating the Process
Automating Soft Capping makes the process much easier.
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The LPARs’ DCs (Defined Capacity) are dynamically
modified by taking into account the behavior and needs of all the LPARs.
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When one LPAR requires capacity to handle an
instantaneous workload increase, its DC
can be dynamically increased, temporarily, while other less- busy LPARs can
have their DCs reduced temporarily.
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When the demand for extra capacity has passed, all of
the LPAR DCs are returned to their normal levels, based on the CPC DC
aggregate.
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Software tools are available to assist in the process
Summary
In summary, in
order to manage your IBM z System licensing charges you need to:
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Understand the components of the MLC
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Understand your negotiated pricing mechanism
Charles Johnson
Principal Consultant
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