I was planning on using the original HDD for storage for photos and music files so the SSD doesn't get filled rapidly. I suppose a 1TB SSD would be sufficient storage but I wasn't sure if it affects performance.
If it were me, this is what I'd do:
- purchase inexpensive 2.5" SATA disk enclosure.
- install new SSD into the enclosure
- attach to Mac, run CCC and get your system onto the SSD
- Boot from the SSD in the USB enclosure to ensure everything is as you expect
- remove SSD from enclosure
- disassemble Mac, remove HDD and install SSD
- boot to confirm everything is good
- place HDD into enclosure and screw it down
- attach to Mac, wipe the HDD, then set it up as Time Machine or whatever you like.
this, to me, is preferable because you have made your mini much cooler (and likely a bit faster) due to much improved thermal conditions from removing the HDD. Plus, you have easy access to the HDD, you can replace it later with something bigger or faster, etc. This way, you only have to take it apart once
