Field Notice: FN74134 - Cisco UCS Integrated Management Controller Out of Memory Impacting Intersight Managed Mode Running Impacted Firmware Versions - Software Upgrade Recommended

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Updated:April 5, 2024
Document ID:FN74134

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Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected


Affected Software Product Affected Release Affected Release Number Comments
Unified Computing System (UCS) Server Software Bundle 4.1 4.1(3a), 4.1(3b), 4.1(3c), 4.1(3d), 4.1(3e), 4.1(3f), 4.1(3h), 4.1(3i), 4.1(3j), 4.1(3k), 4.1(3l), 4.1(3m)  
Unified Computing System (UCS) Server Software Bundle 4.2 4.2(1c), 4.2(1d), 4.2(1f), 4.2(1i), 4.2(1k), 4.2(1l), 4.2(1m), 4.2(1n), 4.2(2a), 4.2(2c), 4.2(2d), 4.2(2e), 4.2(3b), 4.2(3d), 4.2(3e), 4.2(3g), 4.2(3h)  
Unified Computing System (UCS) Drivers 5.0 5.0(1c), 5.0(1e)  

Defect Information


Defect IDHeadline
CSCwa10354UCSX-210C-M6 CIMC OOM due to NMPowerManager
CSCwb90548M5 Server CIMC OOM due to thermal process
CSCvy88113IFM/CIMC communication redesign
CSCwh31636IMM: M5 Blade DC loses connection intermittently

Problem Description


Cisco Integrated Management Controllers (IMCs) on Cisco UCS-B M5, Cisco UCS-B M6, and Cisco UCS-X M6 Servers may encounter an out-of-memory condition when they are running older firmware releases. While in an impacted state, the server may be unmanageable from Intersight, and the server state shown in Intersight may be inaccurate.

This issue applies only to Cisco UCS-B M5 Series, Cisco UCS-B M6 Series, and Cisco UCS-X M6 Series Blade Servers in Intersight Managed Mode (IMM) that are running affected firmware releases.


Background


In IMM, many management tasks for Cisco UCS-B M5, Cisco UCS-B M6, and Cisco UCS-X M6 Blade Servers are processed directly from Intersight services to the Device Connector (DC) that is running on the Cisco IMC. This includes blade discovery, profile association, and firmware upgrades. Server states and alarms are also communicated directly from the DC to Intersight services. The issues referenced in this field notice are related to interruptions of the DC.


Problem Symptom


Due to Cisco IMCs possibly entering an out-of-memory condition, the Intersight DC of an affected server may become disconnected. When disconnected, any Intersight workflow that requires connectivity to the DC will fail, including: 

  • Server Discovery 
  • Server Firmware Upgrade
  • Server Profile Association

The errors include the following:

  • The Request could not be sent to the end-point. Check the device connectivity to Intersight and retry.
  • Retrieve Server FRU Information.
  • Retrieve Server Inventory.


Workaround/Solution


Solution

Cisco suggests upgrading to a server firmware bundle that includes a fix to the respective software defects to eliminate these known out-of-memory conditions, as shown in the following table. For Cisco UCS-B and Cisco UCS-X Servers, see the Server Firmware Upgrade task in Intersight for the latest suggested release.

Cisco Server Affected Release – HSU Bundle Affected Release – IMC First Fixed Release – HSU Bundle First Fixed Release – IMC
UCS-B M5 and M6 Blade Servers:
UCSB-B200-M5
UCSB-B480-M5
UCSB-B200-M6

4.1(3o) and earlier
4.2(1h) and earlier
4.2(2e) and earlier

5.2(0.230039) and earlier

Previously deferred releases:
4.1(3a)
4.1(3b) 

4.1(3o) and earlier
4.2(1h) and earlier
4.2(2e) and earlier

5.2(0.230039) and earlier

Previously deferred releases:
4.1(33a)
4.1(33a)

 

5.2(0.230100)

 

5.2(0.230100)
UCS-X M6 Blade Servers:
UCSX-X210C-M6		 5.0(1e) and earlier 5.0(1e) and earlier

5.2(0.230092)

5.2(0.230092)

 

Cisco UCS-B M5 and M6 Blade Server software can be found at https://software.cisco.com/download/home/283853163/type/283655681/release/

Cisco UCS-X Blade Server software can be downloaded from an Intersight Appliance Account. To create an Intersight Appliance Account, follow the steps in the Cisco Intersight Appliance Getting Started Guide.


How to Identify Affected Products


Servers that are susceptible to this issue can be identified by their running blade bundle or Cisco IMC version. For affected blade Host Service Utility (HSU) bundle or Cisco IMC releases, see the table in the Workaround/Solution section of this field notice. There are two ways to review impacted servers:

For Intersight Essentials and Advantage Customers

Intersight Essentials and Advantage Customers will be automatically alerted for servers that are running an affected release. To access details, complete the following steps:

  1. Click the Advisories icon.
  2. Click the Field Notices tab.
  3. Enter this field notice number.

From an Intersight Account

  1. Choose Infrastructure Service > Operate > Servers and add the following filters:
    • Choose Model and input UCSB-B200-M6,UCSB-B200-M5,UCSB-B480-M5,UCSX-210C-M6.
    • Choose Management Mode and then Intersight.
  2. Click the blue Export button to export the results.
  3. Open the resulting .csv document in a spreadsheet application, convert it to columns if required, and enable filtering.
  4. For the Firmware column, choose only the affected releases that are listed in the Workaround/Solution section of this field notice.
  5. Use the following primary columns to identify the systems that need remediation:
    • Name – the fabric interconnect domain name, chassis number, and blade number. For example, example-1-1 means domain example, chassis 1, blade 1.
    • Serial
    • Model
    • Firmware

 


Revision History


VersionDescriptionSectionDate
1.0Initial Release—2024-APR-05

For More Information

For further assistance or for more information about this field notice, contact the Cisco Technical Assistance Center (TAC) using one of the following methods:

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