Feb 13, 2022
System node PCIe features – Introduction to Power E1080
1.5.4 System node PCIe features
Each system node provides eight PCIe Gen 5 hot-plug enabled slots; therefore, a two-system nodes server provides 16 slots, a three-system nodes server provides 24 slots, and a
four-system nodes system provides 32 slots.
Table 1-12 lists all the supported PCIe adapter feature codes inside the Power E1080 server node drawer.
Table 1-12 PCIe adapters supported on Power E1080 server node
22 IBM Power E1080: Technical Overview and Introduction
a. Requires SFP to provide 10 Gb, 2 Gb, or 1 Gb BaseT connectivity
1.5.5 System node disk and media features
At the time of this writing, the Power E1080 server node supports up to four 7 mm NVMe U.2 drives that are plugged into the 4-bay NVMe carrier backplane (feature code EJBC). Each system node requires one backplane, even if no NVMe U.2 drives are selected.
Each NVMe U.2 drive can be independently assigned to different LPARs for hosting the operating system and to start from them. They also can be used for non-data intensive workloads. NVMe U.2 drives are concurrently replaceable.
Table 1-13 lists the available NVMe drive feature codes for the Power E1080 and the operating system support.
Table 1-13 NVMe features
For more information, see 2.5.2, “Internal NVMe storage subsystem” on page 87.
For systems that are running IBM i, an expansion or storage drawer can meet the NVMe requirements.
1.5.6 System node USB features
The Power E1080 supports one stand-alone external USB drive that is associated to feature code EUA5. The feature code includes the cable that is used to the USB drive to the preferred front accessible USB port on the SCU.
The Power E1080 server node does not offer an integrated USB port. The USB 3.0 adapter feature code EC6J is required to provide connectivity to an optional external USB DVD drive and requires one system node or I/O expansion drawer PCIe slot. The adapter connects to
Chapter 1. Introduction to Power E1080 23
the USB port in the rear of the SCU with the cable associated to feature code EC6N. Because this cable is 1.5 m long, in case of a Power E1080 with more than one system node, the USB 3.0 adapter can be used in the first or the second system node only.
The USB 3.0 adapter feature code EC6J supports the assignment to an LPAR and can be migrated from an operating LPAR to another, including the connected DVD drive. This design allows it to assign the DVD drive feature to any LPAR according to the need.
Dynamic allocation of system resources such as processor, memory, and I/O is also referred to as dynamic LPAR or DLPAR.
For more information about the USB subsystem, see 1.5.6, “System node USB features” on page 23.
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