Logically partitioned mode
If the z13s server runs in LPAR mode, each of the 40 LPARs can be defined to operate in one
of the following image modes:
ESA/390 mode to run the following systems:
– A z/Architecture operating system, on dedicated or shared CPs
– An ESA/390 operating system, on dedicated or shared CPs
– A Linux on z Systems operating system, on dedicated or shared CPs
– z/OS, on any of the following processor units:
• Dedicated or shared CPs
• Dedicated CPs and dedicated zIIPs
• Shared CPs and shared zIIPs
zIIP usage: zIIPs can be defined to an ESA/390 mode or z/VM mode image, as
shown in Table 3-4 on page 120. However, zIIPs are used only by z/OS. Other
operating systems cannot use zIIPs even if they are defined to the LPAR. z/VM
V5R4 and later provide support for real and virtual zIIPs to guest z/OS systems.
However, z/VM V5R4 is not supported on IBM z13s servers.
ESA/390 TPF mode to run the z/TPF operating system, on dedicated or shared CPs
Coupling facility mode, by loading the CFCC code into the LPAR that is defined as one of
these types:
– Dedicated or shared CPs
– Dedicated or shared ICFs
Linux only mode to run these systems:
– A Linux on z Systems operating system, on either of these types:
• Dedicated or shared IFLs
• Dedicated or shared CPs
– A z/VM operating system, on either of these types:
• Dedicated or shared IFLs
• Dedicated or shared CPs
z/VM mode to run z/VM on dedicated or shared CPs or IFLs, plus zIIPs and ICFs
z Appliance Container Infrastructure (zACI) mode can run on these types:
– Dedicated or shared CPs
– Dedicated or shared IFLs
Chapter 3. Central processor complex system design
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