Most likely yes, but the also envisioned periodically repacking oft multiple small data extents into one big that gets written to the HDD would wake up the HDD. And if you'd make the SSD "metadata only", browser cache and logging will keep the HDD spinning.
This feature is for performance, not the case you described.
The disk is unused except for once a day things get backed up to it (and other places, of course). Nothing will get written to it except for when it is getting written to for the backup.
bjoli|7 months ago
I will definitely try this.