VPX系统管理框架：基于IPMI与ATCA标准的VITA 46.11-2015

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本文档是关于VPX（VersaModule Eurocard）系统管理框架的标准文档，即ANSI/VITA46.11-2015。VPX是一种开放架构标准，专为高性能计算和通信应用设计，旨在提供模块化、可扩展和互操作的系统解决方案。该标准定义了一个系统管理框架，其核心目标是确保VPX生态系统内的硬件组件（如Field Replaceable Units, FRUs）、机箱以及整个系统层面的兼容性和一致性。框架的基础是基于Intellectual Platform Management Interface (IPMI) 规范，这是一种广泛接受的平台管理标准，它定义了如何管理和监控服务器和网络设备的底层硬件和软件功能。通过IPMI，VPX系统能够实现远程管理，包括电源控制、温度监控、错误报告等功能。此外，该标准还借鉴了AdvancedTCA® (ATCA®) 规范由PICMG®（PCI-Express Industrial Computer Manufacturers Group）制定的概念和定义，这些概念对于构建高可靠性和高效能的系统至关重要。ATCA标准通常用于数据中心的高密度服务器架构，而VITA46.11将其应用到VPX系统中，促进了整个生态系统的标准化和集成。在批准过程中，ANSI（美国国家标准协会）确保了该标准的开发符合其严格的审批流程，包括公开讨论、多方参与和充分的共识达成。当一个标准得到ANSI的批准时，这意味着它满足了公正程序、广泛的行业支持和实质性利益方的一致认可。在本案例中，ANSI/VITA46.11-2015是在2015年6月获得批准的，版权属于VITA，所有权益受法律保护。总结来说，VITA46.11-2015为VPX系统提供了一个强大的系统管理基础，通过IPMI和ATCA的相关概念，实现了设备间的良好协作，提升了整个生态系统的运维效率和可靠性。这对于制造商、系统集成商和最终用户来说，都是优化设计、简化部署和维护的重要工具。

made to the glossary of that specification. In cases where VITA 46.11 has redefined a

[PICMG3D0] term, or a term is unique to VITA 46.11, a definition is provided.

1.2.2.5 System Design Considerations

This section serves as a guide for Systems Integrators, highlighting several optional

features that could require attention when designed into a VITA 46.11 system. Per 1.2.2,

PICMG 3.0 Leverage, this specification attempts to leverage existing commercial System

Management solutions. This specification provides a logical roadmap for implementing

several advanced System Management features found in [PICMG3D0], without defining

hardware interconnect compatibility points to implement these features. This is consistent

with [PICMG3D0], as neither [PICMG3D0] nor [VITA46D0] specifications define a

Shelf Manager or Chassis Manager pin-out to their respective backplanes.

1.2.2.5.1 Radial IPMB

In [PICMG3D0], radial IPMB communication links are often used in order to increase

system availability. The value of radial IPMB increases with the number of modules in a

system, as the chances of an IPMB fault such as an I

C stuck bus condition increase with

the number of IPMCs attached to a shared bus.

1.2.2.5.1.1 Radial IPMB on [PICMG3D0]

Implementation of radial IPMB-0 communication links on [PICMG3D0] backplanes is

vendor-specific, a value-added customization point within the industry. A [PICMG3D0]

Shelf Manager is the equivalent of this specification’s Chassis Manager functionality.

IPMB-0 link pin-outs on the Shelf Manager are left to vendor-specific implementation.

Radial implementations of [PICMG3D0] Shelf Manager modules and [PICMG3D0]

backplanes are generally not expected to be inter-operable across vendors. Typically, a

shelf vendor provides both the backplane and Shelf Manager modules. Nevertheless, data

structures in [PICMG3D0] Shelf FRU Information describe the radial IPMB-0

connectivity topology in an implementation-independent fashion.

1.2.2.5.1.2 Radial IPMB on VITA 46.11

Section 9.1.3, “Radial System Topologies”, outlines the overall requirements for

implementing radial System IPMB communication links on VPX, but intentionally does

not provide guidance on the hardware implementation of this feature. As such, VPX

Systems Integrators are responsible for sourcing pin-out compatible components to

assemble systems with Radial System IPMB. As with [PICMG3D0], VITA 46.11

defines, in 10.3.3, Radial System IPMB Link Mapping Record, data structures that allow

the Radial System IPMB topology to be described in an implementation-independent

fashion.

For example, implementing a System IPMB Hub with more than two IPMB links on a

VPX plug-in module would require user-defined backplane I/O signals. VITA 46.11 has

a primary objective to assign System Management interfaces to the VPX P0/J0

connector. Per 9.1.2, Bused System Topologies, these signals are defined as two I

C-

based communication channels. [VITA65] also states that SM[3:0] shall each be bused

ANSI/VITA 46.11-2015

among all slots in the backplane. As such, radial IPMB implementations would require

vendor-specific backplane configurations.

1.2.2.5.2 Redundant Chassis Manager Communication

Figure 1.2.3.1-3, “Co-resident System Manager with Dual Redundant VITA 46.11

Chassis Managers”, suggests the implementation of a redundant Chassis Manager with

active/backup counterparts instances for redundancy. In [PICMG3D0], the hardware

implementation of the Shelf Manager failover network communication is intentionally

undefined. Redundant Shelf Managers are assumed by [PICMG3D0] to be provided by

the same vendor. This specification intentionally does not define the interconnect

technology nor the pin-outs of these links. As such, VPX Systems Integrators are

responsible for sourcing pin-out compatible components to assemble systems with

Redundant Chassis Managers.

1.2.3 VITA 46.11 System Management Architecture Overview

The VITA 46.11 System Management architecture defines components, interfaces,

mechanisms, and the general infrastructure to support the implementation of an

intelligent management subsystem within VPX that supports the following management

features:

• inventory management

• sensor management

• system configuration

• recovery

• diagnostic management

1.2.3.1 Layers

The VITA 46.11 architecture specifies three logical layers of management authority that

are defined by the physical domains they oversee. The layers are hierarchical in nature

such that an entity in a higher layer is knowledgeable of the content and management

capabilities of the entities in the lower layers and is responsible for direct management of

its own domain and generally the domains of the entities in the lower layers.

The entities in the three logical layers within VITA 46.11 are the System Manager, the

Chassis Manager, and the IPMC. The IPMC oversees management of the FRU on which

it exists and of any Unintelligent FRUs it represents to the management subsystem, the

Chassis Manager oversees management within a Chassis, and the System Manager

oversees management across an entire System. Figure 1.2.3.1-1, “Two VITA 46.11

Chassis with External System Manager”, shows the logical block diagram for a VITA

46.11 system with a System Manager that is external to the two Chassis that it manages.

Figure 1.2.3.1-1 Two VITA 46.11 Chassis with External System Manager

ANSI/VITA 46.11-2015

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VPX系统管理框架：基于IPMI与ATCA标准的VITA 46.11-2015

VPX标准规范之一/ VITA46.0 Draft Standard

VITA 46.0-2007.pdf

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vita46.11 System Management on VPX.pdf

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VITA46.rar

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VITA 46.6-2013 Gigabit Ethernet on VPX Fabric Connector.pdf

ANSI-VITA-46.0-2007（中文翻译版)_V1.0.pdf

VPX 46-48-65.rar

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