I connected the drive via an external enclosure and USB (2.0) cable. OS X said it couldn't read the drive, so I transferred all of my files onto another external drive on my windows machine, connected it back up to my Mac, and formatted it to the Apple standard. It did format, however it says I only have 801.57 GB capacity, 801.44 available. The 'SSD not showing full capacity' issue can also occur after you upgrade to a larger SSD by cloning the old hard disk. After clone, you may find the SSD has the same disk space as the old one, and the rest disk space is missing. That’s because you have cloned the partition size of the original disk to the SSD drive.
Hiya:
Gotta new iMac 27' running El Capitan and I'm in the process of transferring my files from my old Windows machine to my Mac. The drive in question is a 3TB Seagate drive that was NTFS formatted on my Windows machine. I never partitioned it and when formatted it displayed 2.32TB of available space in Windows 10.
I connected the drive via an external enclosure and USB (2.0) cable. OS X said it couldn't read the drive, so I transferred all of my files onto another external drive on my windows machine, connected it back up to my Mac, and formatted it to the Apple standard. It did format, however it says I only have 801.57 GB capacity, 801.44 available. I've ejected the drive, reformatted it, and chose the 'Apple Partition Map' as an option and still the same. I hope I covered all the bases?
Any help would be greatly appreciated, thanks!
- Jon K.
iMac with Retina 5K display, OS X El Capitan (10.11.2)
Largest Capacity External Hard Drive
Posted on Dec 13, 2015 10:22 AM