Cisco UCS C-Series Server Integration with Cisco UCS Manager 2.1
Cisco UCS C-Series Integration with Cisco UCS Manager
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Cisco UCS C-Series Integration with Cisco UCS Manager

Cisco UCS C-Series Integration with Cisco UCS Manager

This chapter includes the following sections:

Overview

This guide contains information and procedures for installing Cisco UCS Rack Mount Servers for integration with Cisco UCS Manager release 2.1.

Cisco UCS C-Series Rack-Mount Servers are managed by the built-in standalone software, Cisco Integrated Management Controller (CIMC) . When a C-Series Rack-Mount Server is integrated with Cisco UCS Manager, the CIMC does not manage the server anymore. Instead it is managed with the Cisco UCS Manager software. You will manage the server using the Cisco UCS Manager GUI or Cisco UCS Manager CLI.

Important:

If your server is not factory new, make sure to reset the server to factory default settings before integrating the server with Cisco UCS Manager.

You can integrate Cisco UCS C-Series Rack-Mount Servers with Cisco UCS Manager in either one of the following setup:

  • Cluster setup: Using two fabric extenders (FEXes) to connect the C-Series Rack-Mount Server with two fabric interconnects.
  • Non-cluster setup: Connecting the C-Series Rack-Mount Server with one FEX and one FI.

Integrating C-Series Rack Mount Server with Cisco UCS Manager

Cisco UCS Manager 2.1 provides two connectivity modes for Cisco UCS C-Series Rack-Mount Server management. The following are the two connectivity modes:

  • Dual-wire Management (Shared LOM): This management mode is supported in the Cisco UCS Manager releases earlier than 2.1. Shared LAN on Motherboard (LOM) ports on the rack server are used exclusively for carrying management traffic. A separate cable connected to one of the ports on the PCIe card carries the data traffic. Using two separate cables for managing data traffic and management traffic is also referred to as dual-wire management.
  • Single-wire Management (Sideband): Cisco UCS Manager release version 2.1 introduces an additional rack server management mode using Network Controller Sideband Interface (NC-SI). Cisco UCS VIC1225 Virtual Interface Card (VIC) uses the NC-SI, that can carry both data traffic and management traffic on the same cable. This new feature is referred to as single-wire management. For more information, see Single-Wire Management.

The general prerequisites for Dual-wire integration with Cisco UCS Manager are built into the C-Series Rack-Mount Server CIMC release 1.4(6) or later. If you want to use the single-wire management you must have the following:

  • Server CIMC release 1.4(6) or later
  • Cisco UCS VIC1225 Virtual Interface Card

The following table lists theC-Series Rack-Mount Servers and supported management options:

Table 1 Supported Management Options

Servers

Single-wire Management

Dual-wire Management

Cisco UCS C22 M3 Server

Yes

Yes

Cisco UCS C24 M3 Server

Yes

Yes

Cisco UCS C200 M2 Server

No

Yes

Cisco UCS C210 M2 Server

No

Yes

Cisco UCS C220 M3 Server

Yes

Yes

Cisco UCS C240 M3 Server

Yes

Yes

Cisco UCS C250 M2 Server

No

Yes

Cisco UCS C260 M2 Server

Yes

Yes

Cisco UCS C420 M3 Server

Yes

Yes

Cisco UCS C460 M2 Server

Yes

Yes

Based on your server model and CIMC version, you can use either one of these two integration options to connect the rack server withCisco UCS Manager 2.1.

Cisco UCS Manager runs within the fabric interconnect (FI). You can use any of the interfaces available with this management service to access, configure, administer, and monitor the network and server resources for all chassis connected to the fabric interconnect. For information about the Cisco UCS 6100 Series or 6200 Series fabric interconnects, see the documentation at the following links:

For information about the Cisco Nexus 2232 fabric extenders (FEXes) in the configuration, see the documentation at the following link:

FEX Connection Mode and Discovery

You can connect the FEX to the FI in two ways. Cisco UCS Manager FI discovers the FEX based on the connection mode. The FEX connection modes are:

  • Hard-Pinning mode: The server facing FEX ports are pinned to the connected uplink ports when the FEX is discovered. Cisco UCS Manager pins the server-facing ports to the uplink ports based on the number of acknowledged uplink ports. After the pinning, if you add a new uplink or delete an existing uplink, you must manually acknowledge the FEX to apply the changes.
  • Port-Channel mode: Port-Channel mode does not have pinning. A single port channel works as the uplink to all server-facing ports. And all uplink ports are members of this single port channel. If one of the uplink ports go down, the traffic is automatically distributed to another available uplink port.

Note


These connection modes apply only to the 6200 series FIs.


In port-channel mode, when you cable between FEX and the FI, the available virtual interface (VIF) namespace varies, depending on where the uplinks are connected to the FI ports:
  • When port-channel uplinks from the FEX are connected only within a set of eight ports managed by a single chip, Cisco UCS Manager maximizes the number of VIFs used in service profiles deployed on the servers.
  • If uplink connections are distributed across ports managed by separate chips, the VIF count is decreased. For example (see Figure), if you connect seven members of the port channel to ports 1–7, but the eighth member to port 9, this port channel can only support VIFs as though it had one member.

The Cisco UCS 6200 Series FI has six sets of eight contiguous ports. Each set of ports is managed by a single chip. For more information on FEX discovery policies and port-channel allocation, see the Cisco UCS Manager Configuration Guide, Release 2.0 or later.

Figure 1. Six Sets of Ports in Fabric Interconnect and Expansion Module

Maximum Configurable vNICs/vHBAs Based on Number of FEX Uplinks

The following table describes maximum configurable vNICs/vHBAs based on number of FEX uplinks:

Table 2 Cisco UCS 6100 Fabric Interconnect

Acknowledged link between FEX and FI

Maximum configurable vNICs/vHBA using VIC 1225

Maximum configurable vNICs/vHBA using VIC P81E

1

Not supported

Not supported

2

3

4

4

9

10

8

21

22

Table 3 Cisco UCS 6200 Fabric Interconnect

Acknowledged link between FEX and FI

Maximum configurable vNICs/vHBA using VIC 1225

Maximum configurable vNICs/vHBA using VIC P81E

1

12

13

2

27

28

4

57

58

8

117

118


Note


  • For a non-VIC adapter the maximum number of vNICs are 2 and the maximum number of vHBAs are 2.
  • If the server in single-wire mode has two VIC adapters, then the max number of vifs (vNICs+vHBAs) available for second adapter would be same as for an adapter in a dual-wire mode server.