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Entry  Wed Dec 22 14:57:05 2021, Koji, Update, General, chiara local backup 
    Reply  Thu Dec 23 16:38:21 2021, Koji, Update, General, Is megatron down? (Re: chiara local backup) 
       Reply  Fri Dec 24 16:49:41 2021, Koji, Update, General, Is megatron down? (Re: chiara local backup) PXL_20211224_235652821.jpg
Message ID: 16536     Entry time: Fri Dec 24 16:49:41 2021     In reply to: 16535
Author: Koji 
Type: Update 
Category: General 
Subject: Is megatron down? (Re: chiara local backup) 

It turned out that the UPS installed on Nov 22 failed (cf https://nodus.ligo.caltech.edu:8081/40m/16479 ). As a fact, it was alive just for 2 weeks!

The APC UPS unit indicated F06. According to the manual (https://www.apc.com/shop/us/en/products/APC-Power-Saving-Back-UPS-Pro-1000VA/P-BR1000G), F06 means "Relay Welding" and can not be fixed by a user. Resetting the UPS eliminated the error, but I didn't want to have the same issue while no one is in the lab, I moved the megatron power source from the UPS to the power strip on 1Y7. So, megatron is currently vulnerable to a power glitch.

After the power cords were restored, megatron eventually recovered ssh terminals. I manually ran autoburt.cron at 16:50 so that the latest snapshot is taken.

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