Field Notice: FN - 64154 - Nexus 7700 Supervisor 2E Embedded Flash Write Error - Software Upgrade Recommended

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.

Revision History

Revision	Publish Date	Comments
1.0	21-Jul-16	Initial Release
10.0	11-Oct-17	Migration to new field notice system
11.0	15-Jan-18	Updated the Cisco bug ID details - Revised the scope of the field notice to include CSCvf36683

Products Affected

Affected Product ID	Comments
N77-SUP2E=	Part Alternate

Defect Information

Defect ID	Headline
CSCvf36683	N7K-SUP2/E: eUSB Flash Failure or Unable to Save Configuration
CSCuv18883	N77-SUP2E eUSB Compact Flash Failure or Unable to Save Configuration

Problem Description

An issue has been discovered on the Cisco Nexus 7700 Series Supervisor 2E (N77-SUP2E) modules that run NX-OS Release 6.2(2) to 6.2(18), 7.2(1)D1(1) to 7.2(2)D1(2), 7.3(0)D1(1) to 7.3(2)D1(2), 8.0(1), 8.1(1), and 8.2(1) which might prevent write operations to the on-board, embedded USB devices. A software upgrade is required in order to resolve this issue.

Refer to Cisco bug IDs CSCuv18883 and CSCvf36683 (registered customers only) for more information.

Background

The Cisco Nexus 7700 Series Supervisor 2E module is equipped with one on-board, embedded USB device. After continuous operation for a significant amount of time, the embedded USB device might experience an error that prevents any write operations to that device.

Problem Symptom

For systems that run NX-OS Release 6.2(2) to 6.2(18), 7.2(1)D1(1) to 7.2(2)D1(2), 7.3(0)D1(1) to 7.3(2)D1(2), 8.0(1), 8.1(1), and 8.2(1), complete the Cisco Generic Online Diagnostics (GOLD) test in order to determine whether the embedded USB device has failed.

Here is an example that shows how to complete the GOLD test:

n7700# show diagnostic result module 2 test 7 detail

Current bootup diagnostic level: complete
Module 2: Supervisor Module-2 (Active)
Diagnostic level at card bootup: complete
Test results: (. = Pass, F = Fail, I = Incomplete,
U = Untested, A = Abort, E = Error disabled)
______________________________________________________________________
7) CompactFlash .
Error code ------------------> DIAG TEST SUCCESS
Total run count -------------> 1262
Last test execution time ----> Tue May 17 02:05:54 2016
First test failure time -----> n/a
Last test failure time ------> n/a
Last test pass time ---------> Tue May 17 02:06:05 2016
Total failure count ---------> 0
Consecutive failure count ---> 0
Last failure reason ---------> No failures yet
Next Execution time ---------> Tue May 17 02:35:54 2016
______________________________________________________________________

Module 5: Supervisor module-2 (Standby)
______________________________________________________________________
7) CompactFlash E
Error code ------------------> DIAG TEST ERR DISABLE
Total run count -------------> 27510
Last test execution time ----> Thu Jul 24 01:44:53 2014
First test failure time -----> Wed Jul 23 16:15:04 2014
Last test failure time ------> Thu Jul 24 01:44:58 2014
Last test pass time ---------> Wed Jul 23 15:45:04 2014
Total failure count ---------> 20
Consecutive failure count ---> 20
Last failure reason ---------> The compact flash power test failed
Next Execution time ---------> Thu Jul 24 02:14:53 2014
______________________________________________________________________

Other possible indications of this issue include NX-OS failures to complete the copy running-config startup-config command or to write the file output to the bootflash device, such as show version > boot flash:show_ver.txt. If the embedded USB device has failed, refer to the instructions that are provided in the next section.

Note: The GOLD test results and file write attempts to bootflash are non-disruptive operations.

Workaround/Solution

Follow the compact flash upgrade procedure described in Nexus 7000: N7k-Sup2/E Compact Flash Upgrade Procedure.

The fix for this issue has been integrated into NX-OS Release 6.2(20). This fix will also be integrated into upcoming maintenance releases for other Nexus 7000 NX-OS releases.

For more information, refer to Cisco Nexus 7000 Series Switches Release Notes.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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