What Is A Fusion Drive?
Is Fusion Drive an SSD or HDD? A Fusion Drive is a hybrid volume which uses two disks. Fusion Drives contain a hard disk drive and a solid-state drive. iMac computers with Fusion Drives use an SSD on the computer motherboard with a traditional HDD. macOS integrates the two drives, but files aren’t stored separately on the two drives. The macOS uses software RAID to create a single volume.
- The SSD and the hard drive are logically alocated into a single block device.
- A portion of SSD space is used as a write-back buffer to absorb incoming write data. The SSD is used as a type of Cache.
- Recently accessed data is stored on the SSD. Large, static data is stored in the HDD.
- Data which becomes frequenctly accessed will be become buffered onto the SSD.
Apple Hard Disk and SSD For Fusion Drive
Fusion Drives and Data Loss
Seattle Data Recovery rescues files from failing or dead Fusion Drives. We support all iMac Fusion Drive errors and offer multiple solutions for our clients.
- Recover accidentally deleted files or formatted disks/partitions
- Recover from a virus attack or hardware failure
- Recover a Fusion Drive that becomes unbootable
- Recover a separated Fusion Drive where the drives are presented as two drives instead of one.
