Elijah_Baley

This is mainly an informational post. This is concerning Windows 10.
I have 13 drives pooled and i have every power management function set so as to not allow Windows to control power or in any way shut down the drives or anything else. I do not allow anything on my server to sleep either. I received a security update from Windows about 5 days ago.
After the update I began daily to receive notices that my drives were disconnected. 
Shortly after any of those notices (within 2 minutes) I received a notice that all drives have been reconnected. There was never any errors resulting from whatever triggered the notices.
I decided to check and I found that one of my USB controllers had its power control status changed. I changed it back to not allowing Windows to control its power and I have not received any notices since. 
I do not know for sure but I am 99% sure that the Windows update toggled that one controller's power control status to allow windows to turn it off when not being used.
I cannot be 100% sure that I have had it always turned off but, until the update, I received none of the notices I started receiving after the update. 
I suggest, if anyone starts receiving weird notices about several drives becoming lost from the pool, that you check the power management status of your drives. Sometimes Windows updates are just not able to resist changing things. They also introduce gremlins. You just have to be careful to not feed them after midnight and under no circumstances should you get an infested computer wet.   

A final, I hope, follow-up to this. I have fixed the problems by simply going to the OS level and going to each drive and making "Everyone" the owner, with full rights, to each of the PoolPart... directories on the drives. That seems to have cleared everything up and the duplicating functioning is restored. 
I probably made this more trouble than it needed to be but I plead age and poor health that influenced my decisions to the more complicated side.  I lost a few files but at least i did not need to rebuild my entire pool.
I wish there was a tool available that will fix this kind of issue automagically but doing it manually is not too bad as long as the correct choice is made early on. Unfortunately some of my early decisions led me down the wrong path so it took me several times longer than it should have.
Again, I plead old brain syndrome.

Folks, thank all for the ideas. I am not neglecting them but I have some health issues that make it very hard for me to do much of anything for a while. I will try the more promising ones as my health permits but it will take some time. From operation and the lack of errors during writing/reading it seems that I am in no danger except duplication won't work. I can live with that for a while.
Keep the ideas coming and, maybe, I can get this mess fixed and report back which tools worked for me.
I am making one pass through my pool where I remove a drive from the pool, run full diagnosis and file system diagnosis on that drive then I re-add it back to the pool. When completed that will assure that there are no underlying drive problems and I can proceed from there.
Thanks to all who tried to help this old man.  

Folks, thank all for the ideas. I am not neglecting them but I have some health issues that make it very hard for me to do much of anything for a while. I will try the more promising ones as my health permits but it will take some time. From operation and the lack of errors during writing/reading it seems that I am in no danger except duplication won't work. I can live with that for a while.
Keep the ideas coming and, maybe, I can get this mess fixed and report back which tools worked for me.
I am making one pass through my pool where I remove a drive from the pool, run full diagnosis and file system diagnosis on that drive then I re-add it back to the pool. When completed that will assure that there are no underlying drive problems and I can proceed from there.
Thanks to all who tried to help this old man.  

First, I'm sorry to hear about the drive failing, as that is never a pleasant experience. 
 
 
As for the email, if you removed the missing/failed disk, it may have completed, or it may have corrupted the settings.
 
The newer versions (beta version) handles issues like this better and may fix the issue outright.
 
Otherwise, resetting the settings should fix this issue (but will wipe out your balancing settings).
http://wiki.covecube.com/StableBit_DrivePool_Q2299585B