Nexus 7K Sup 2 repeatedly compact flash power test failed occurred with several device

[Hongju Jung]

Dear all relavant team or expert

One of our customer had IDC center and they are installed N7K 50 device and running about 2 years over now.

However, recently that N7K device Supervisor ( sup2) has beeen failed message occurred as a below with different device

[Log message]

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.531764] end_request: I/O error, dev sde, sector 408528 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.531814] end_request: I/O error, dev sde, sector 408528 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.601261] end_request: I/O error, dev sde, sector 173456 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.601307] end_request: I/O error, dev sde, sector 173456 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.651248] end_request: I/O error, dev sde, sector 329472 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.651294] end_request: I/O error, dev sde, sector 329472 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.735636] end_request: I/O error, dev sde, sector 4013200 - kernel

2015 Apr 17 20:57:51 SA_N7K_LTE_PASW4 Apr 17 20:57:50 %KERN-3-SYSTEM_MSG: [46639557.735696] end_request: I/O error, dev sde, sector 4013200 - kernel

2015 Apr 18 06:30:55 SA_N7K_LTE_PASW4 %DIAGCLIENT-2-EEM_ACTION_HM_SHUTDOWN: Test <CompactFlash> has been disabled as a part of default EEM action

2015 Apr 18 06:30:55 SA_N7K_LTE_PASW4 %DEVICE_TEST-2-COMPACT_FLASH_FAIL: Module 5 has failed test CompactFlash 20 times on device Compact Flash due to error The compact flash power test failed

2015 Apr 18 06:30:55 SA_N7K_LTE_PASW4 %MODULE-4-MOD_WARNING: Module 5 (Serial number: XXXXXXXXX) reported warning due to The compact flash power test failed in device DEV_UNDEF (device error 0x0)

2015 Apr 18 06:30:56 SA_N7K_LTE_PASW4 %VSHD-5-VSHD_SYSLOG_CONFIG_I: Configured from vty by admin on vsh.19785

Above log message have default EEM action, and flash failed message that's why I got asked Local cisco TAC

There is compact flash H/W issue so they creation RMA Part and we were replaced the part only now.

but I want to know which exactly compact flash such as location or what is doing on the device etc

Please help me my concern and is that sure only replace the part, if there is replace the part that will be make poor compact flash with specific period ?

thanks

[Daniel Castillo]

Each N7K supervisor 2/2E is equipped with 2 eUSB flash devices in RAID1 configuration, one primary and one mirror. Together they provide non-volatile repositories for boot images, startup configuration and persistent application data.

What can happen is over a period of months or years in service, one of these devices may be disconnected from the USB bus, causing the RAID software to drop the device from the configuration. The device can still function normally with 1/2 devices. However, when the second device drops out of the array, the bootflash is remounted as read-only, meaning we cannot save configuration or files to the bootflash, or allow the standby to sync to the active in the event it is reloaded.

you can also take a look at the next article:

http://www.cisco.com/c/en/us/support/docs/field-notices/639/fn63975.html