244 IBM z13s Technical Guide
Maximum number of PUs per system image
Table 7-5 lists the maximum number of PUs supported by each OS image and by special
purpose LPARs. On the z13s, the image size is restricted by the number of PUs available:
Maximum of 6 CPs or 6 CPs with 12 zIIPs
Maximum of 20 IFLs or Internal Coupling Facilities (ICFs)
Table 7-5 Single system image size software support
The z Appliance Container Infrastructure- mode LPAR
zEC12 introduced an LPAR mode, called zAware-mode, that is exclusively for running the
IBM zAware virtual appliance.
IBM z Appliance Container Infrastructure (zACI) is a new partition type that, along with an
appliance installer, enables the secure deployment of software and firmware appliances. zACI
will shorten the deployment and implementation of firmware solutions or software solutions
delivered as virtual software appliances.
The zACI framework enforces a common set of standards and behaviors, and a new zACI
partition mode for a virtual appliance that requires a new zACI LPAR type. The IBM zAware
partition mode has been renamed to zACI, and the IBM zAware firmware will now run in this
partition. There are no hardware dependencies. zACI will be delivered as part of the base
code on each z13s and z13 (driver level 27) server.
The IBM zAware virtual appliance can pinpoint deviations in z/OS normal system behavior. It
also improves real-time event diagnostic tests by monitoring the z/OS operations log
Operating system Maximum number of PUs per system image
a
a. z13s servers have 20 characterizable PUs.
z/OS V2R2 141
bc
b. 128 PUs in multithreading mode and 141 PUs supported without multithreading.
z/OS V2R1 141
bc
c. Total characterizable PUs including zIIPs and CPs on z13s servers.
z/OS V1R13 100
c
.
z/OS V1R12 100
b.
z/VM V6R3 64
d
.
d. 64 PUs without SMT mode and 32 PUs with SMT.
z/VM V6R2 32.
z/VSE V5R1 and later z/VSE Turbo Dispatcher can exploit up to 4 CPs, and tolerates up
to 10-way LPARs.
z/TPF V1R1 86 CPs.
CFCC Level 21 16 CPs or ICFs: CPs and ICFs cannot be mixed.
IBM zAware 80
Linux on z Systems
e
e. IBM is working with its Linux distribution partners to provide the use of this function in future
Linux on z Systems distribution releases.
SUSE Linux Enterprise Server 12: 256 CPs or IFLs.
SUSE Linux Enterprise Server 11: 64 CPs or IFLs.
Red Hat RHEL 7: 256 CPs or IFLs.
Red Hat RHEL 6 64 CPs or IFLs.
KVM for IBM z Systems 141
c
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