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GLYPH<SM590000> Use Change LPAR Group Controls (as with windows that are used for software group-defined capacity), as shown in Figure 10-17 (snapshot on a z15). 

<img src='content_image/999365.jpg'>

Absolute capping is specified as an absolute number of processors to which the group’s activity is capped. The value is specified to hundredths of a processor (for example, 4.56 processors) worth of capacity. 

The value is not tied to the Licensed Internal Code (LIC) configuration code (LICCC). Any value 0.01 - 255.00 can be specified. This configuration makes the profiles more portable, which means that you do not have issues in the future when profiles are migrated to new machines. 

Although the absolute cap can be specified to hundredths of a processor, the exact amount might not be that precise. The same factors that influence the “machine capacity” also influence the precision with which the absolute capping works. 

LPAR absolute capping can be changed through scheduled operations start with HMC version 2.15.0. 

## 10.5.3 Operating system communication 

The Operating System Messages task displays messages from an LPAR. You can also enter operating system commands and interact with the system. This task is especially valuable for entering Coupling Facility Control Code (CFCC) commands. 

The HMC also provides integrated 3270 and ASCII consoles. These consoles allow an operating system to be accessed without requiring other network or network devices, such as TCP/IP or control units. 

## Updates to x3270 support 

The Configure 3270 Emulators task on the HMC and TKE consoles was enhanced with Driver 15 to verify the authenticity of the certificate that is returned by the 3270 server when a secure and encrypted SSL connection is established to an IBM host. This 3270 Emulator with encrypted connection is also known as  Secure 3270 . 

