というわけで、902はPolywellに入院の方向で。
こんなメール出してあるので、その筋での調査&検査入院かと。

Jim-san,

In the several days, oyster902 is encountered suddenly system downs.
And today, 902 has been down since today's evening in Japan.

We dare to suspend rebooting 902 for checking system console message.
So, if you can, please go to PIE and check system console message of
902.

I checked the details of Suma storage the day before yesterday, and
they works fine and I cannot detect any errors. So, there are no
problem on Suma.

And yesterday, I detected strange system message as seen below:

Oct 18 02:48:08 <0.2> oyster902 kernel: aac0: **Monitor** NMI ISR: NMI_MEMORY_CONTROLLER_ERROR

This means Adaptec RAID 1 controller (aac0) on board memory is wrong,
so fixing the card is needed, I think.

Anyway, please check current system console message of 902.

Yoroshiku-Onegai shimasu.