Would this be taking long as it is going through the new OS or is it not recognizing it.

I thought that the backups were running slowly, so I shutdown the computer, disconnected it from power, disconnected the USB cable from the WD drive.

Time Machine backups seem to be working OK now - both automatically and forced.

Also, Im intermittently getting a message saying theres a RAID issue when the iMAC wakes from sleep, although theres no RAID implemented.

Uninstallingreinstalling the utility did not help; would not launch.

My Book Studio Wdbaaj Software With A

Have since uninstalled the utility until Western Digital updates the software with a Sierra-compatible version.

It is set for hourly back ups but Im lucky if it backup twice a day.

The other bizarre issue is it seems to create two back ups each time.

Im not using any of the WD Utilities, but it looks like Time Machine doesnt back up when the iMac is in sleep mode AND the WD drive is in sleep mode.

So when you wake up (with locked screen), the WD drive also wakes up.

If Time Machine sees it missed a back-up opportunity it starts to back-up immediately.

Sierra has been out since September and they see to be simply writing off all of those customers.

I would like to ask you if you have ever used that device with Sierra.

Because as you can see in page 2 Sierra is not compatible: User Manual (PDF).

Manual My Book Studio For Mac Wdbaaj