How do you have the SAS drive connected to your Mint 22 box (what exact adapter/controller)? Is it going through a real SAS HBA (LSI/Broadcom-style, IT/HBA mode), or through a RAID controller / USB-SAS bridge / “virtual” adapter?

Reason I’m asking: there are basically two connection paths:

• True HBA/passthrough: Linux gets direct SCSI access (you’ll see a /dev/sgX for the disk) and you can usually low-level reformat it back to 512-byte logical blocks (e.g., from 520/528).
• RAID/USB/translation layer: the controller hides or emulates the SCSI commands, so tools like sg_format often can’t issue the low-level format needed to switch the sector size. That might be why the disk is visible in the disks app but not in gparted.

Given the screen shots I believe it’s the later. Can someone smarter than me confirm?