Will a Fu­sion Drive help?

Ben­e­fit from a hard disk’s ca­pac­ity and an SSD’s speed at the same time

Mac Format - - FEATURE -

Fu­sion Drive is the friendly name Ap­ple came up with for a flash stor­age and hard disk ar­range­ment that be­haves as though it’s just one drive. OS X de­cides what data should be stored on each. Data that’s ac­cessed fre­quently and will make the big­gest dif­fer­ence to your

Mac’s per­for­mance – sys­tem files and

any­thing used at startup, say – is stored on the flash drive, along with any­thing OS X no­tices you use of­ten. As its free space dwin­dles, data you use less of­ten is moved to the hard disk.

In­stalling an SSD in­side suit­able Macs is in­volved work, so the easi­est way to set up a Fu­sion Drive is to add the SSD ex­ter­nally over Thun­der­bolt or USB 3 – you’ll need the speed of those in­ter­faces to ben­e­fit from the SSD’s per­for­mance (the lat­ter’s eas­ily more af­ford­able). Oth­er­wise, re­cent porta­bles and some desk­top Macs re­quire ma­jor hard­ware mods, us­ing kit like OWC’s Data Dou­bler range, to keep the SSD con­nected at all times.

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