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Forum Discussion

Luis_Ribeiro's avatar
Luis_Ribeiro
Icon for Nimbostratus rankNimbostratus
Jun 19, 2018

ltm nodes down ICMP monitor fail, but ping from TMSH get success!

Hi, I have a two viprion chassi (BIG-IP C4480) with 4 vcmp, version 12.1.2. One vcmp suddenly get all nodes down and the reason is the fail of ICMP Health Monitors. If I change the probe (Health Moni...
application delivery
BIG-IP
LTM
Leonardo_Souza's avatar
Leonardo_Souza
Icon for Cirrocumulus rankCirrocumulus
Jul 13, 2018

"What is the meaning of Bad file descriptor in this context?"

 

In your case, it probably means that the bigd was trying to write to a file that has already been closed. Maybe because the interval settings you have or a software bug.

 

Can you post here the icmp monitor settings you have?

 

There is this bug, but does not apply to the version you have:

 

https://support.f5.com/csp/article/K48693281

 

"Should I run e2fsck?"

 

The physical disk is in the vCMP host, the vCMP guests only have virtual disks that a basically files in the vCMP host disk. If there was a problem with the disk, would probably affect all vCMP guests, and within the guests, not only the bigd process.

 

Anyway, you don't lose anything in checking that.

 

You can use the platform diagnostics for that, that is more user-friendly version:

 

https://support.f5.com/csp/article/K15442

 

However, there is also the smartctl command. Don't forget that you test the disk in the vCMP host.