Logical partitions
This section provides an overview of LP characteristics. Some of the characteristics described in this section are model-dependent, EC-level dependent, MCL-dependent, LP mode dependent, or control-program dependent. For this reason, all the characteristics described here are not necessarily available on all CPCs.
The resources of a CPC can be distributed among multiple control programs that can run on the same CPC simultaneously. Each control program has the use of resources defined to the logical partition in which it runs.
You can define an LP to include:
- PCIe functions
- One or more CPs
- Central storage
- Channel paths
- Two or more optional cryptos (Crypto Express). A single crypto engine can be defined, for test purposes, but it is not recommended for production LPs.
An LP can be defined to include CPs, zIIPs, ICFs, and IFLs. The allowed combinations of defined processor types for an LP depends on the defined mode
of the logical partition. Refer to Table 1.
You can also define an LP to be a coupling facility running the coupling facility control code.