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A PCI Mezzanine Card or PMC is a printed circuit board assembly manufactured to the IEEE P1386.1[1] standard. This standard combines the electrical characteristics of the PCI bus with the mechanical dimensions of the Common Mezzanine Card or CMC format (IEEE 1386 standard)[2].

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. x16 PCIe 3.0 Type A (supports Type A mezzanine cards) (expansion slot 1). NOTE: This expansion slot supports dual-port mezzanine cards: one port is routed to interconnect module bay 3 and the other to bay 4. x16 PCIe 3.0 Type B (supports Type A and Type B mezzanine cards (expansion slot 2). FlexibleLOM (LAN on motherboard) and mezzanine card for Blade are cards with different types of interfaces (connectors) and they are connected to the system board. Blades servers do not have PCIe slots or there is no option to install PCIe cards vertically, instead they have Mezzanine slot to install add-on cards (having Mezannine connector. NOTE: A second processor must be installed (in processor slot 2) to have access to the second expansion slot (expansion slot 2). Mezzanine card options include: Dual-port 20Gb FlexFabric, Dual-port 10Gb FlexFabric, 10GbE options, and quad-port 1Gb Ethernet server adapter mezzanine options for additional network ports. HP ProLiant BL460c Gen8 Blade Server 641016-B21 CTO 10GB FLB BAREBONE BASE MODEL, NO CPUs, NO RAM, NO HDD. I have read about the mezzanine cards used in Blades, but I still am not sure if they server as Network Adapters or whatever purpose they are meant for. Any clear explanation about the Mezzanine card? A link to a video that explains the usage of the mezzanine card will be appreciated. Find many great new & used options and get the best deals for HP ProLiant BL460c Gen8 Blade Server 641016-B21 CTO 10GB FLB BAREBONE at the best online prices at eBay! Free shipping for many products! (supports Type A mezzanine cards) (expansion slot 1). NOTE: This expansion slot supports dual-port mezzanine cards: one port is routed to.

A mezzanine connector connects two parallel printed circuit boards in a stacking configuration. Many mezzanine connector styles are commercially available for this purpose, however PMC mezzanine applications usually use the 1.0 mm pitch 64 pin connector described in IEEE 1386[2].

A PMC can have up to four 64-pin bus connectors. The first two ('P1' and 'P2') are used for 32 bit PCI signals, a third ('P3') is needed for 64 bit PCI signals. An additional bus connector ('P4') can be used for non-specified I/O signals. In addition, arbitrary connectors can be supplied on the front panel of the chassis or case; also known as a 'bezel'.

The PMC standard defines which connector pins are used for which PCI signals; in addition it defines the optional 64 'P4' connector pins for use of arbitrary I/O signals.

It enables manufacturers to offer products that are compatible with the well-established PCI bus, but in a smaller and more robust package than standard PCI plug-in cards. The word mezzanine, derived from the Italian mezzanino and also commonly used to refer to a platform inserted between two floors of a building, describes the way in which a PMC fits between two adjacent host cards in a standard card rack, attached to one of the cards by connectors and mounting pillars. A single PMC measures 74 mm x 149 mm. The standard also defines a double-sized card, but this is rarely used.

Carrier cards that accept PMCs are usually made in the Eurocard format, which includes single, double and triple-height VMEbus cards, CompactPCI (cPCI) cards and more recently, VPX cards. One PMC fits on a standard 3U carrier card while 6U models (typical for VMEbus cards) can carry up to two PMCs. PMCs were also used in early ATCA systems prior to the advent of the Advanced Mezzanine Card or AMC.

For the PMC standard, I/O technologies account for much of the market, but various card functions are commercially available including Intel architecture and PowerPC processors, graphics cards, and memory cards. I/O cards are available such as serial communication controllers, SCSI controllers, graphics controllers and FireWire controllers.

Variants[edit]

Additional standards exist that define variants of the standard PMC. For example,

  • PMC-X (PCI-X PMC) defined by the VITA 39 standard
  • PPMC (aka PrPMC; processor PMC) defined by the VITA 32 standard. I.e. for allowing processors to have host or monarch, support on a PMC. Additional signaling is defined so that the PrPMC can work as the host processor on a PCI bus. The intention is to allow a monarch PMC to control the PCI bus. This is usually a requirement if the PMC is to act as a host processor module.
  • CCPMC (conduction-cooled PMC) defined by the VITA 20 standard
  • XMC, or Switched Mezzanine Card, (PMC with high-speed serial fabric interconnect) defined by the VITA 42 standard. XMC specifies a fifth connector ('P15') that supports PCI Express (VITA 42.3) or other high speed serial formats such as Serial RapidIO (VITA 42.2) and Parallel RapidIO (VITA 42.1).
  • FMC – FPGA Mezzanine Card provides a standard mezzanine form factor that offers a flexible, modular I/O interface to an FPGA located on a host system baseboard or carrier card. For an overview read: Introducing the FPGA Mezzanine Card: Emerging VITA 57 (FMC) standard brings modularity to FPGA designs. VITA 57 defines both convection- and conduction-cooled FMC form factors.

References[edit]

  1. ^'IEEE Standard Physical and Environmental Layers for PCI Mezzanine Cards: PMC'. IEEE STD 1386.1-2001: 1–14. August 2001. doi:10.1109/IEEESTD.2001.93279. ISBN978-0-7381-2830-6.
  2. ^ ab'1386-2001 - IEEE Standard for a Common Mezzanine Card (CMC) Family - IEEE Standard'. ieeexplore.ieee.org. Retrieved 2017-12-12.

External links[edit]

Retrieved from 'https://en.wikipedia.org/w/index.php?title=PCI_Mezzanine_Card&oldid=929677297'
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Original owner: KCS - ProLiant Servers
Version state: final

FACT:HPE ProLiant Gen8 Servers

Server mezzanine slot flb 1 3

FACT:FlexibleLOM

Questions/Symptoms

SYMPTOM:FlexibleLOM

GOAL:What is FlexibleLOM?

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Answer/Solution

FIX:

What is FlexibleLOM?

System Board with an embedded NIC is referred as LAN-on-motherboard (LOM) architecture.

FlexibleLOM uses a system board edge connector that accepts a FlexibleLOM adapter, which integrates seamlessly.


Benefits of FlexibleLOM over LOM (LAN on Motherboard)?

In previous generation servers, we had LOM which is integrated onto the system board. If a user desired a different kind of networking adapter, they would need to purchase a PCI adapter and install it in a slot in the server. This was consuming mezzanine or PCI slots which reduced the flexibility to add other mezzanine cards or PCI cards.


What is FLR and FLB?

FlexibleLOM Rack (FLR) adapter for rack mount servers.

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FlexibleLOM Blade (FLB) adapter for Blade servers.


What is the PCIe interface used by FlexibleLOM in Rack Servers?

FlexibleLOM technology uses a custom implementation of the PCIe 3.0 x8 interface. FlexibleLOM technology does not require additional CPU resources over standard LOM architecture and does not occupy a regular PCI slot.


What is the interface used by FlexibleLOM in Blade Servers?


FLB uses PCI Express v2.0 (Gen 2) x8 interface. The FlexibleLOM Blade adapter installs as a daughter card on the server blade board, just like a mezzanine card.


How to install FlexibleLOM?

Refer to the respective server’s maintenance guide or FlexibleLOM’s installation guide.


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Which servers use FlexibleLOM?

At the time of writing this article, the following Gen8 servers use FlexibleLOM technology.


ProLiant DL (Rack):

HP ProLiant DL160 Gen8

HP ProLiant DL360p Gen8

HP ProLiant DL380p Gen8

HP ProLiant DL385p Gen8

HP ProLiant DL560 Gen8


ProLiant SL (scalable):

HP ProLiant SL210t Gen8

HP ProLiant SL230s Gen8

HP ProLiant SL250s Gen8

HP ProLiant SL270s Gen8

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ProLiant BL (Blades):

HP ProLiant BL420c Gen8

HP ProLiant BL460c Gen8

HP ProLiant BL465c Gen8

HP ProLiant BL660c Gen8

HP ProLiant WS460c Gen8


Note: Replacing a system board will not replace the FlexibleLOM.

Note: Part numbers are subject to change without notice, please refer to HP PartSurfer for parts numbers.


HP FlexibleLOM adapters for HP ProLiant Gen8 rack mount servers:

Spare Part#
Fabric Connectivity
HP 1GbE 4-port, 331FLR Adapter FIO Kit
629135-B21
Large send/receive offloading, VLAN tagging, virtualization support
669280-001
1 Gb Ethernet
Large send/receive offloading, VLAN tagging, virtualization support, TCP checksum and segmentation, MSI-X, Wake-On-LAN, Jumbo frames, IEEE 1588
649869-001
10 Gb Ethernet
VLAN tagging, NIC teaming, PXE boot, virtualization support
634026-001
10 Gb Ethernet, iSCSI, FCoE, FlexFabric
HP InfiniBand FDR/EN 10/40Gb 2-port, 544FLR-QSFP Adapter
649282-B21
Dual functionality: IB bandwidth up to 56 Gb/s, Ethernet bandwidth up to 40 Gb/s
HP InfiniBand QDR/EN 10Gb 2-port, 544FLR-QSFP Adapter
649283-B21
Dual functionality: IB bandwidth up to 56 Gb/s, Ethernet bandwidth up to 10 Gb/s
669281-001
10 Gb Ethernet
Jumbo frames, PXE boot, checksum segmentation offload, time stamping (IEEE 1588), virtualization support


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HP FlexibleLOM adapters for HP ProLiant Gen8 c-Class server blades:

Spare Part#
Fabric Connectivity
HP Ethernet 10Gb 2-port 560FLB FlexibleLOM
655639-B21
HP teaming, iLO, LSO and checksum offload, time stamping (IEEE 1588), virtualization features
656246-001
1 Gb Ethernet
Time stamping/synchronization, DMA coalescing, RSS, PXE boot, large send offload, Jumbo frames
657132-001
10 Gb Ethernet, Virtual Connect Flex-10
TCP offload engine, MSI/MSI-X, virtualization features
649940-001
10 Gb Ethernet, iSCSI, FCoE
Multi-protocol offloads, industry-leading performance-per-watt power savings


Note: Product images are for illustrative purposes only. Actual product may differ.


Figure 1: FlexibleLOM for Rack Servers.

Figure 2: Rack Server with FlexibleLOM (FLR).

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Figure 3: FlexibleLOM for Blade Servers.

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Figure 4: Blade Server with FlexibleLOM (FLB).

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