Mac M1 - Photoshop Scratch Disk

juvalvarghese wrote:

How to use external ssd as scratch disk in Photoshop?

I have not done this in a while but I believe this is the procedure:

In Photoshop, select Preferences > Scratch Disks and then select that external drive you wish to use. Quit Photoshop and then reopen it.

It used to have to be HFS+ but APFS might also work.

After you set up an external scratch disk in this manner, make sure it is always connected whenever you run Photoshop.

While many Mac users use Photoshop, you are more likely to find someone with the answer in the Adobe forum.

It should not be any different from the Intel Mac. Granted there has been some issues with external drives in general that need their own source of power. Most M1 laptops support pass through power on a USB hub to manage external drives.

https://www.smklink.com/products/usb-c-multi-port-hub

and

https://www.siig.com/search/JU-DK0F11-S1

are both excellent hubs that do not require extra firmware to manage that.

And may give more power to the drive than the built-in USB-C ports on the Mac.