macOS High Sierra bug on direct storage using firewire

Hi,

After I have installed the High Sierra version on my Macbook Pro, my direct storage, Promise Smartster DS4600, loses connection continuously in several minutes, which have been working well until I upgraded.

Then I have no choice to fall back to my previous version, macOs Sierra 10.12.6.

Afterthat, the problem did not happen again. This proved that my direct storage has no problem.

My MacBook Pro is 17-inch, Mid 2010 version, and fusion drive, which is still using firewire 800.

Please check whether this bug can be fixed.

I am looking forward to hearing your good news.

Thank you.