In addition to processors and memory, every POWER system has a number of I/O slots for PCI adapters. How many I/O slots are available depends on the specific model of the POWER system. As a rule, POWER systems are already purchased with a range of FC and Ethernet adapters. Which PCI adapter a specific managed system has can be listed with the command “ms lsslot” (list slots):

$ ms lsslot ms07
DRC_NAME                  DRC_INDEX  IOPOOL  LPAR_NAME  DESCRIPTION
U78C7.001.LJD4A99-P1-C10  21010010   none    -          PCIe2 16Gb 2-Port Fibre Channel Adapter
U78C7.001.LJD4A99-P3-R2   21010011   none    ms07-vio2  RAID Controller
U78C7.001.LJD4A99-P1-C11  21010018   none    -          PCIe2 4-port (10Gb FCoE & 1GbE) SR&RJ45 Adapter
U78C7.001.LJD4A99-P1-C12  21010019   none    ms07-vio1  PCIe2 16Gb 2-Port Fibre Channel Adapter
U78C7.001.LJD4A99-P1-C8   21010020   none    ms07-vio2  PCIe2 16Gb 2-Port Fibre Channel Adapter
U78C7.001.LJD4A99-P3-R1   21010021   none    ms07-vio1  RAID Controller
U78C7.001.LJD4A99-P1-C9   21010028   none    -          PCIe2 4-port (10Gb FCoE & 1GbE) SR&RJ45 Adapter
U78C7.001.LJD4A99-P1-T1   2101002B   none    -          Universal Serial Bus UHC Spec
U78C7.001.LJD4A99-P1-C6   2102002C   none    -          1 Gigabit Ethernet (UTP) 4 Port Adapter PCIE-4x/Short
U78C7.001.LJD4A99-P1-C7   2103002D   none    -          PCIe2 16Gb 2-Port Fibre Channel Adapter
U78C7.001.LJD4A99-P1-C3   21010030   none    -          PCIe3 4-port 10GbE SR Adapter
U78C7.001.KIC3988-P1-C4   21010038   none    ms07-vio1  Quad 8 Gigabit Fibre Channel LP Adapter
U78C7.001.LJD4A99-P1-C1   21010040   none    -          PCIe3 4-port 10GbE SR Adapter
U78C7.001.LJD4A99-P1-C2   21010048   none    ms07-vio2  Quad 8 Gigabit Fibre Channel LP Adapter
$

In addition to the physical location code (column DRC_NAME), the so-called DRC_INDEX is displayed. The latter is used to assign an I/O adapter to an LPAR. As a rule, physical I/O adapters are assigned usually to a virtual I/O server; in the example output, some of the I/O adapters are divided between the two virtual I/O servers ms07-vio1 and ms07-vio2 . The last column contains a description of the I/O adapter.

Processor or memory resources of a managed system can be displayed with “ms lsproc” (list processors) or “ms lsmem” (list memory):

$ ms lsproc ms07
NAME  INSTALLED  CONFIGURABLE  AVAIL  MAX_SHARED_PROC_POOLS
ms07  48.0       48.0          1.15   64
$ 
$ 
$ ms lsmem ms07
NAME  INSTALLED  FIRMWARE  CONFIGURABLE  AVAIL   MEM_REGION_SIZE
ms07  2097152    43776     2097152       859392  256
$

Both outputs also show how much of the resource is still available (e.g. for further LPARs).