I use a MBWE for backups. Typically it is in use for 3-4 hours only per night. In order to preserve its life I'd like it to 'sleep' between times but I've discovered it isn't easy. Spinning down the drive doesn't seem to be reliable (it spins up again) and I haven't been able to put it into a state where it will 'wake on lan'. So here's a strategy:
02:00 - Backups start
05:00ish - Backups end. A PC server sends a poweroff instruction via ssh and the device shuts down (ie internally powered off)
06:00 - A timeswitch in the supply to the power adapter cuts the external power.
Daylight hours pass with the device powered off….
01:50 - The timeswitch restores power. The device boots automatically, ready for the backup routine to start.
Question is…does this repeated power up cause more or less damage than leaving it running all the time?