IBM z13s, Technical Manual

Page: 149 / 588

Chapter 3. Central processor complex system design
121
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
򐂰 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
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.