keep hard disk awake

harrietfroma wrote:

The previous version of Ventura, I think 13.5.3, on 13.6 now, had an option in the battery System Setting had an option to select to keep hard drives awake on primary power. Version 13.6 doesn't seem to have this option.

I have an external drive, with material from several computers that I added to my Time Machine backups. I believe it worked on 13.5.3, with the backup disk and this second disk connected to Thunderbolt ports (the disks have USB 3 cables and I use a USB to Thunderbolt converters).

I attempted to back up my internal and the external disk drive to my Time Machine backup.

It doesn't appear to have backed up the external drive and I was given the warning that "The external drive was ejected prior to being shutdown" or something very similar.

How do I keep my external drives spinning on Ventura 13.6?

Time Machine can back up to an external drive connected to a USB, Thunderbolt, or FireWire port on your Mac.

Backup disks you can use with Time Machine - Apple Support

The "keep hard drives awake" was relevant to mechanical HD ... not SSD moving forward.

there are some known bugs with repeating message:

"The external drive was ejected prior to being shutdown"

I know of no straight forward resolve for your issue...

You can try— a different drive, different format, different cable, different port and compare your results.

you can file a bug report /submit your Apple Feedback here: Product Feedback - Apple

further:

Call Customer Support (800) MY–APPLE (800–692–7753)

or on line https://getsupport.apple.com/

Outside the USA—Contact Apple for support and service by phone

See a list of Apple phone numbers around the world.

Contact Apple for support and service - Apple Support

The option to "prevent hard disk from sleeping" is only available when an external drive is connected (probably mounted as well). I have no idea if macOS distinguishes between hard drives and SSDs, but it would not surprise me if it does.