Fan Control via IPMI - Flash Memory Wear of the BMC?

[thomas-hn]

Hello,

if a fan control script like Fan Scripts for Supermicro Boards Using PID Logic is used, the script updates the fan speeds on the motherboard via IPMI commands.
Are the values written via IPMI only kept in the RAM of the motherboard's Baseboard Management Controller (BMC) or are the values written all the time in some non-voltatile memory (flash memory) of the BMC and create some flash memory wear over time?

Do I have to worry about the BMC?

Thanks a lot,

Thomas

 

[sretalla]

Do I have to worry about the BMC?

No.

are the values written all the time in some non-voltatile memory (flash memory) of the BMC and create some flash memory wear over time?

Theoretically, yes, but not something you need to worry about in reality.

There are plenty of folks who have run that script (or one like it) for many years without encountering any such issue.

 

[Ericloewe]

I would fully expect this to be a memory-only thing, it's not something that even has a configuration option that could be written to.