Nexus 9336 kernel error

[BorislavPenchev0962]

Hello,

we do get the following errors when trying to dir bootflash: Input/output error 

shortly before that we did upgrade to

install all nxos bootflash:nxos.9.3.7.bin"

"install epld bootflash:n9000-epld.9.3.7.img module all 

 show logging last 10
2021 Dec 24 09:29:23 hrnmegdc100-02 %KERN-3-SYSTEM_MSG: [2288057.729289] blk_update_request: I/O error, dev loop10, sector 0 - kernel
2021 Dec 24 09:30:03 hrnmegdc100-02 %KERN-3-SYSTEM_MSG: [2288097.327236] blk_update_request: I/O error, dev sda, sector 0 - kernel

did we done something wrong ?

Software
  BIOS: version 05.43
 NXOS: version 9.3(7)
  BIOS compile time:  12/22/2020
  NXOS image file is: bootflash:///nxos.9.3.7.bin
  NXOS compile time:  3/10/2021 3:00:00 [03/10/2021 14:12:12

when we try to get show tech we get this error first:

 
 show tech-support > bootflash:TechSupport.txt
Error: could not open temporary file /bootflash/TechSupport.txt (errno=30)---- show tech-support ----
Show tech brief will take  4-6 minutes to complete. Please Wait ...

but then we finally get the output on the screen;

Regards

Boris

[balaji.bandi]

Looks like some bug htting :  ( make sure you offload the config before you take any action) - is this vPC  or standalone switch ?

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs79768?rfs=iqvred

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuo44829?rfs=iqvred

[BorislavPenchev0962]

this is vPC switch, do we need to replace it as its still in warranty ?

BR

[balaji.bandi]

Raise an TAC case they will advice you.

[BorislavPenchev0962]

we did reboot and issue looks resolved, but will monitor next few days;

thank you for your answers

[balaji.bandi]

yes some time reboot fix the issue, due to Long uptime may cause issue, glad all good. in case it appears again may be Time for TAC.

[340031390]

How did you solve it in the end?
I also have this problem！Four switches appear simultaneously 。
device is uptime more than 3 years.
NXOS: version 9.2(3)  Nexus9000 93180YC-EX
2023 Oct 23 19:15:42.405 N9K-2_DS-Backup %KERN-3-SYSTEM_MSG: [104489190.336526] blk_update_request: I/O error, dev loop9, sector 0 - kernel

[BorislavPenchev0962]

we did reboot and issue got resolved, but monitor next few days;