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KunLun 9016 V100R001 User Guide 12

This document describes the appearance, specifications, parameters, and structure of the KunLun 9016, and how to install an OS, replace parts, and install, remove, configure, and troubleshoot the server.
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Key Features

Key Features

RAS Features

The 9016 server has over 100 configurable Reliability, Availability, and Serviceability (RAS) features to improve server RAS.

The 9016 server uses an innovative, converged, and elastic dual-plane node controller (NC) architecture to support interconnection between more than eight CPUs. This new architecture also utilizes a series of enhanced RAS features to enable the server to deliver reliability comparable to conventional midrange computers.

The 9016 server supports two types of RAS features:

  • Key features
    • Memory reliability
    • CPU reliability
    • Integrated I/O (IIO) reliability
    • Fault diagnosis management (FDM)
  • Enhanced features
    • Physical partitioning technology
    • Node interconnect (NI) link protection
    • System clock redundancy
    • Online expansion and high scalability
    • Key memory address mirroring
    • Hot swap of CPU board modules
NOTE:

For details about how to configure RAS features in the BIOS, see http://support.huawei.com/enterprise/en/doc/DOC1000111848.

Physical Partitioning

The 9016 server uses physical partitioning technology to provide a multi-partition feature. The 9016 uses the physical partitioning technology to implement the multi-partition feature.

With physical partitioning technology, a KunLun server can be configured as a single system or as multiple physical partitions based on service requirements to maximize return on investment (ROI).

Physical partitioning technology uses the following features to improve service load flexibility:

  • Easy switching

    One-click switching between the system operating modes using the central management console (CMC) WebUI does not need any hardware changes or software upgrades.

  • Unified management UI

    A unified CMC WebUI manages a 9016 server regardless of the server operating mode.

  • Equal allocation of service resources

    In physical partition mode, each partition is allocated with equal server resources, including CPUs, DIMMs, and local storage resources.

  • Flexible service resource allocation

    Both even physical partitioning and uneven physical partitioning. When a KunLun server operates in physical partition mode, service resources, including CPUs, DIMMs, and local storage resources, can be evenly allocated to each physical partition, or different hardware resources can be configured for physical partitions.

  • High reliability

    The physical partitions are electrically isolated to achieve fault isolation, delivering higher reliability than the reliability of software- or firmware-based partitioning.

Physical Partition Specifications

  • Number of physical partitions: A 9016-16P supports a maximum of four physical partitions, and a 9016-12P supports a maximum of three physical partitions.
  • Physical partitioning type: even physical partitioning (the CPU and DIMM quantity and types of physical partitions in a KunLun server are the same) and uneven physical partitioning (the CPU and DIMM quantity and types of physical partitions in a KunLun server are the different).
  • Physical partition granularity: The minimum granularity is 4P (resources included in one BPU). 4P, 8P, and 12P physical partitions are supported. The physical partitions are electrically isolated. CPU, memory, I/O, and storage resources in a partition are not shared. The same partition does not support mixed configurations of different types of CPUs and DIMMs, while different types of CPUs and DIMMs can be configured for different partitions. Each partition can run an OS independently.
  • Physical partition operations: Physical partitions can be preconfigured before delivery or created and modified on site. You can create or modify a physical partition using a physical partition template. When you switch the physical partition mode, you need to power off the server and restore the default BIOS settings (except the password). After a physical partition is created or modified, the physical partition can be powered on and off independently. When two physical partitions on a server are configured with different types of CPUs or different types and quantity of DIMMs, the two physical partitions cannot be combined.

Physical Partitioning Rules

The general rule is creating partitions from large to small (12P->8P->4P).

In addition to the general rule, comply with the following rules:

  • 4P physical partition: consists of one BPU in an SCE.
  • 8P physical partition: consists of two BPUs in the same SCE.
  • 12P physical partition: consists of SCE 1 and BPU A of SCE 2, and BPU B of SCE 2 must be a 4P physical partition; consists of SCE 3 and BPU A of SCE 4, and BPU B of SCE 4 must be a 4P physical partition.
NOTE:
  • From the front view, the SCEs are labeled SCE 1 to SCE 2 from bottom to top.
  • From the front view, a BPU corresponds to the resources (including CPUs, DIMMs, I/O modules, and disks) of the left 4P (BPU A) or right 4 P (BPU B) of an SCE.

Table 2-1 describes physical partition specifications for the 9016 server.

Table 2-1 Physical partition specifications

Physical Partition Type

Specifications

9016-16P

Supports five types of physical partitions: 1 x 16P, 2 x 8P, 8P+2 x 4P, 4 x 4P, and 12P+4P

9016-12P

Supports five types of physical partitions: 8P+4P, 3 x 4P, and 12P

NOTE:

The KunLun server is configured as all 4P physical partitions by default.

Logical Partitioning

The single system or 4P and 8P physical partitions of a 9016 support logical partitioning (L-Par) technology, which makes the server more flexible in partitioning. The hardware resources (CPU, memory, and I/O devices) used by a logical partition are isolated. Compared with a physical partition, a logical partition is more flexible and provides more fine-grained partitioning capabilities.

Firmware is used to isolate hardware resources of logical partitions. It is a platform between the physical hardware and the logical partition OS to shield physical hardware differences for logical partitions and provide necessary hardware resources for users based on the configuration of the logical partition.

A logical partition can be booted from the M.2 RAID controller card in a fixed PCIe slot. The M.2 RAID controller card is installed only in the non-hot-swappable BIO of SCE1-BPUA, and only one M.2 RAID controller card can be installed. When replacing the M.2 SSD, ensure that a new SSD is used. The M.2 RAID controller card is equivalent to a non-hot swappable PCIe card. For details about how to install the M.2 RAID controller card, see Installing a Non-Hot-Swappable PCIe Card.

Logical partitioning technology has the following features:

  • High performance: CPU resources are exclusively occupied by logical partitions to avoid CPU contention and improve task real-time performance. I/O devices are exclusively used in a pass-through mode. The I/O device access instructions of a logical partition OS are directly sent to physical devices without conversion, improving I/O performance.
  • High availability: Physical hardware resources of logical partitions are isolated from each other. Hardware faults of a logical partition do not affect other logical partitions. In addition, the logical partitions support two-node cluster HA and Oracle RAC, which effectively reduces the planned system downtime and improves the availability of logical partitions.
  • High security: The security of the logical partition is hardened by CPU, memory, and I/O isolation.
  • Manageability: Logical partitions can be managed with hardware devices on a unified WebUI. The black box feature enables the system to automatically store the logical partition firmware kernel logs, system snapshots, kernel diagnosis information, and dying gasp when the system is faulty or breaks down, and save the logs to non-volatile storage devices.

Table 2-2 describes L-Par specifications for the 9016 server.

Table 2-2 L-Par feature specifications

Indicator

Specifications

Remarks

Number of logical partitions supported by a physical partition

40

Maximum number of logical partitions that can be powered on in a single physical partition or a server.

Maximum memory of a logical partition

4 TB

Maximum memory of a logical partition. The minimum memory is 1 GB. The memory can be adjusted with a step of 64 MB.

Maximum number of CPU cores of a logical 96partition

96

Maximum number of CPU cores of a logical partition. The unit is core.

Maximum number of local disks of logical partitions

60

  • Local disks use two mode, Physical Raw Device Mapping (PRDM) and Virtual Raw Device Mapping (VRDM). The local disks refer to the disks that are mapped to logical partitions by firmware. You can use the local HDDs/SSDs or remote disk array disks for mapping.
  • The remote disk array disks can be used by logical partitions through pass-through FC cards depend on the number of disks that can be identified by the Guest OS, but are irrelevant to the limit on the number of local disks.

Maximum number of PCI devices of a logical partition

28

Maximum number of PCI devices of a logical partition.

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Updated: 2019-05-20

Document ID: EDOC1000111827

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