Yes, you can create a fusion drive on older Macs, described in full length here:
- You obviously need both an SSD and a HD. Let's assume they are known to the OS as disk1 and disk7. You can check disk id by
diskutil list
. diskutil cs create bla disk1 disk7
to create it, wherebla
is the name you give to the fusion drive.diskutil cs list
and take note of the Logical Volume Group IDdiskutil coreStoragecs createVolume <ID from above> jhfs+ blub 500g100%
, whereblub
is the name you give to the volume.
Link to Apple instructions: Click Here
Note: These are instructions to fix a split fusion drive, but work also for making one.