My drives are in RAID 1 mode, so amount of data on them is the same. Now I have no ability to move data somewhere.
May be Shaygo (topic starter) will try to do it.
Yes, the behavior of the drive LEDs on the new firmware really matches the description in the owners manual. But on the previous version it was not as now. In addition the user manual was written in 2014 and it doesn’t seems to be changed since that time.
On the previous version when any drive goes to sleep mode, its LED turns off. When both drives go to sleep, power LED starts slowly flashing (like breathing).
Also on previous version drives went to sleep when there is no activity for about 10 minutes. On the new firmware drives go to sleep after a long time, about 30 minutes, and this time is very similar to the time that is set in the IntelliPower controllers of disks.
It is interesting, I recently received an e-mail message from WD tech support from my country. It is interesting because I didn’t ask them for help. They asked me to describe the problem in details. So i did it and will wait for the answer, perhaps they will provide some more information on this issue.
Now I manually installed a previous version 1.05.36, and everything is working as it was before.