what does "mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=8" mean?

I received the following messages in /var/log/message:

Sep  6 04:23:30 localhost kernel: mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=8
Sep  6 04:23:30 localhost kernel: mptbase: ioc0:   SMART data received, ASC/ASCQ = 5dh/00h
Sep  6 04:26:01 localhost kernel: mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=8
Sep  6 04:26:01 localhost kernel: mptbase: ioc0:   SMART data received, ASC/ASCQ = 5dh/05h

This message is repeated frequently, and it has been going on for two weeks. But the server seems ok, I haven’t noticed any service failure.

What does this messages mean?


Source: linux

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