Cisco UCS B460 M4 Manuel utilisateur

Contents

Introduction

Prerequisites

Requirements

Components Used

Background

Discovery Problems

Discovery Fails at 3% - Firmware Mismatch

Solution

Discovery Fails at 7% - CPU Mismatch

Solution

Introduction

This document describes two possible discovery failures that can occur when a B460 M4 motherboard is replaced and their respective solutions.

Prerequisites

Requirements

This document assumes knowledge of UCS B460 M4 and UCS Manager (UCSM).

Components Used

B460 M4 Blade Server

●

UCS Manager

●

Firmware 2.2(3b)

●

Background

The B460 M4 server consists of two Scalable M4 Blade Modules (B260 M4) and a Scalability Connector that cross-connects the two Blade Modules and

allows them to function as a single server. The Blade Module on the bottom is the “Master” and the Blade Module on the top is the “Slave.”

Discovery Problems

Discovery Fails at 3% - Firmware Mismatch

In this failure scenario, the discovery fails at 3% with Remote Invocation Description Aggregate blade CIMC firmware version mismatch. Activate same

firmware version on both CIMC as shown in the figure below. This can occur due to the replacement motherboard or blade module having a different

firmware than the pre-existing B460 M4 server.

The Overall Status will be Discovery Failed as shown in the figure below.

The mismatched firmware can be checked from the command line (CLI) as shown below. In the

output below, the first CIMC is the master and the second is the slave.

UCS-A# show system firmware expand detail

Server 7:

CIMC:

Running-Vers: 2.2(3b)

Package-Vers:

Update-Status: Ready

Activate-Status:

Startup-Vers:

Backup-Vers: 2.2(3a)

Bootloader-Vers: 2.2(3b).33

CIMC:

Running-Vers: 2.2(3a)

Package-Vers:

Update-Status: Ready

Activate-Status:

Startup-Vers:

Backup-Vers: 2.2(3b)

Bootloader-Vers: 2.2(3a).33

CIMC:

Running-Vers: 2.2(3b)

Package-Vers: 2.2(3b)B

Update-Status: Ready

Activate-Status: Ready

Startup-Vers: 2.2(3b)

Backup-Vers: 2.2(3b)

Bootloader-Vers: 2.2(3b).33

Solution

In order to recover from this, follow the steps below.

1) Navigate to Equipment > Chassis > Chassis # > Servers > Server # > Installed Firmware tab.

2) Right-click on the component that needs to be updated (e.g. BIOS, CIMC Controller) and select Update Firmware. In this example, the CIMC Controller

will be updated to 2.2(3b).

3) Select the correct firmware, the Force checkbox and click Apply.

Tip: If it's not clear which version needs to be selected from the dropdown, the network

administrator can navigate to Equipment > Firmware Management > Packages, expand

ucs-k9-bundle-b-series.VERSION.B.bin and look for "ucs-EXM4." There will be three

components: bios (BIOS), brdprog (Board Controller), and cimc (CIMC Controller).

4) Monitor the Installed Firmware tab and wait until the Update Status and Activate Status columns change to Ready and the Backup Version column

changes to the correct firmware.

Tip: The server administrator can monitor the update status from Equipment > Chassis >

Chassis # > Servers > Server # > Inventory tab > CIMC tab > Update Status

5) Right-click on this same component and select Activate Firmware. Again, select the correct firmware, the Force checkbox and click Apply.

6) The Activate Status column in the Installed Firmware tab will change state and eventually return to Ready.

7) The Overall Status in the General tab will change to Inaccessible while the server is rebooting. It should then change to Discovery and go through the

discovery process.

Discovery Fails at 7% - CPU Mismatch

In this failure scenario, the discovery fails at 7% with Remote Invocation Description Pre-boot Hardware config failure - Look at POST/diagnostic results

as shown in the figure below.

The Overall Status in the General tab will be Compute Failed.

The POST Results can be verified by clicking the View Post Results under Actions in the General tab. The figure below shows that the problem is due to a

CPU Mismatch.

Solution

If the hardware matches between the two blade modules, this could be caused by cached information on the server. An enhancement request (CSCuv27099)

exists to clear the cached information from UCS Manager (UCSM). The server administrator can also contact the Cisco Technical Assistance Center (TAC)

for a workaround.

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