On/Off Capacity On Demand And Cps - IBM z13s Technical Manual

CBU for CP rules
Consider the following guidelines when planning for CBU for CP capacity:
The total CBU CP capacity features are equal to the number of added CPs plus the
number of permanent CPs changing capacity level. For example, if two CBU CPs are
added to the current model D03, and the capacity level does not change, the D03
becomes D05: (D03 + 2 = D05).
If the capacity level changes to an E06, the numbers of additional CPs (3) are added to the
three CPs of the D03, resulting in a total number of CBU CP capacity features of six:
(3 + 3 = 6).
The CBU cannot decrease the number of CPs.
The CBU cannot lower the capacity setting.
On/Off Capacity on Demand: Activation of CBU for CPs, IFLs, ICFs, zIIPs, and SAPs can
be activated together with On/Off Capacity on Demand (CoD) temporary upgrades. Both
facilities can be implemented on one system, and can be activated simultaneously.
CBU for specialty engines
Specialty engines (ICFs, IFLs, and zIIPs) run at full capacity for all capacity settings. This
characteristic also applies to CBU for specialty engines. Table 2-13 shows the minimum and
maximum (min-max) numbers of all types of CBUs that can be activated on each of the
models. The CBU record can contain larger numbers of CBUs than can fit in the current
model.
Table 2-13 Capacity Backup matrix
Model
Model N10
Model N20

2.7.6 On/Off Capacity on Demand and CPs

On/Off CoD provides temporary capacity for all types of characterized PUs. Relative to
granular capacity, On/Off CoD for CPs is treated similarly to the way CBU is handled.
On/Off CoD and granular capacity
When temporary capacity requested by On/Off CoD for CPs matches the model capacity
identifier range of the permanent CP feature, the total number of active CP equals the sum of
the number of permanent CPs plus the number of temporary CPs ordered. For example,
when a model capacity identifier D03 has two CPs added temporarily, it becomes a model
capacity identifier D05.
When the addition of temporary capacity requested by On/Off CoD for CPs results in a
cross-over from one capacity identifier range to another, the total number of CPs active when
the temporary CPs are activated is equal to the number of temporary CPs ordered. For
example, when a configuration with model capacity identifier D03 specifies four temporary
CPs through On/Off CoD, the result is a server with model capacity identifier E05.
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IBM z13s Technical Guide
Total CBU CBU
PUs CPs IFLs
available min - min -
max max
13 0 - 6 0 - 10
26 0 - 6 0 - 20
CBU CBU CBU
ICFs zIIPs SAPs
min - min - min -
max max max
0 - 10 0 - 6 0 - 2
0 - 20 0 - 12 0 - 3