I am using a 2016 Macbook Pro and the R6 24TB has been working fine with a direct thunderbolt 3 cable since first setting up. Today I rebooted to use a different network configuration for the mac and the R6 didn't show up. The lights are all blue but the Promise utility cant see it at all. The mac system report shows the thunderbolt port connected to the Pegasus. Disk utility can't see it. I found some good info on the forum but apart from trying different ports and rebooting most of the guidance needs the R6 to be shut down. I can't shut it down from the power button, it just stays blue even when held in 20". I read that unplugging the power is not safe but it seems like my only option in order to proceed with further diagnostics. I have unplugged the thunderbolt cable now and will leave the R6 for a few hours in case it is busy internally. If the power button still doesn't work is my only option to unplug the power? I want to be cautious as I have about 10TB of critical data on it that I need to access.
Thank you in advance for any help,