IBM z13s Technical Manual page 98

Capacity marked CP: A processor that is purchased for future use as a CP is marked as
available capacity. It is offline and not available for use until an upgrade for the CP is
installed. It does not affect software licenses or maintenance charges.
IFL: The Integrated Facility for Linux is a processor that is purchased and activated for use
by z/VM for Linux guests and Linux on z Systems operating systems. It can also run the
IBM zAware code.
Unassigned IFL: A processor that is purchased for future use as an IFL. It is offline and
cannot be used until an upgrade for the IFL is installed. It does not affect software licenses
or maintenance charges.
ICF: An internal coupling facility (ICF) processor that is purchased and activated for use by
the Coupling Facility Control Code.
zIIP: An IBM System z Integrated Information Processor (zIIP) that is purchased and
activated to run eligible workloads, such as Java code under the control of a z/OS Java
virtual machine (JVM) or z/OS XML System Services, DB2 Distributed Relational
Database Architecture (DRDA), or z/OS Communication Server IPSec.
Additional SAP: An optional processor that is purchased and activated for use as an SAP.
A minimum of one PU that is characterized as a CP, IFL, or ICF is required per system. The
maximum number of CPs is six for IFLs, and 20 for ICFs. The maximum number of zIIPs is
always up to twice the number of PUs that are characterized as CPs.
Not all PUs on a model must be characterized.
The following items are present in z13s servers, but they are not part of the PUs that clients
purchase and require no characterization:
An SAP to be used by the channel subsystem. The number of predefined SAPs depends
on the z13s model.
One IFP that is used in the support of designated features, such as zEDC and 10GbE
RoCE.
Two spare PUs, which can transparently assume any characterization during a permanent
failure of another PU.
The z13s model is based on the number of PUs that are available for client use in each
configuration. The models are summarized in Table 2-10.
Table 2-10 z13s configurations
Model Drawers /
PUs
N10 1/13
N20 1/26
N20 2/26
capacity marker
A
purchased CPs is higher than or equal to the number of CPs that is actively used. The
capacity marker marks the availability of purchased but unused capacity that is intended to be
used as CPs in the future. They usually have this status for software-charging reasons.
Unused CPs are not a factor when establishing the millions of service units (MSU) value that
is used for charging monthly license charge (MLC) software, or when charged on a
per-processor basis.
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IBM z13s Technical Guide
CPs IFLs/uIFL
0 - 6 0 - 10 0 - 10
0 - 6 0 - 20 0 - 20
0 - 6 0 - 20 0 - 20
identifies the number of CPs that have been purchased. This number of
ICFs zIIPs Optional
SAPs
0 - 6 0 - 2
0 - 12 0 - 3
0 - 12 0 - 3
Std. Spares IFP
SAPs
2 0 1
3 2 1
3 2 1