Running 2012 MBP and MBA off same external USB3 SSD. Comments?


i have mid 2012 macbook pro 15", , mid 2012 macbook air 11".

rather upgrading internal ssds, i'm contemplating having external ssd in enclosure, can boot macos sierra off external ssd either mbp or mba (not @ same time, of course). both have 8gb ram.

i'd hear experience of others have booted 2012-era mbp or mba off external ssd in usb 3.0 enclosure.

anticipate give slower performance compared internally-installed ssd, if performance off external ssd acceptable daily use (email, browsing websites), accept that.

technically feasible -- boot same external ssd off 2 different macs?

read recommendation that, rather using cheap usb 3.0 enclosures, suggested vantec nexstar. i'd use that.
 

is there reason want use 1 ssd both? decent external drive fast enough cost same 2 internal ssds, or near enough warrant forgoing hassle. you'd best thunderbolt 2 on usb due trim support too. https://forums.macrumors.com/threads/external-ssd-as-boot-drive-usb-3-vs-thunderbolt.1709803/.

in terms of running 2 machine single shared source i'm unsure, i'd hazard guess @ no i'm not familiar how macos works @ level, can google or tell you.

why don't upgrade ssd in air , sell pro? if it's light browsing, seem silly have 2 computers it. wouldn't particularly portable, why wanting keep 2 machines in hindered way when use 1 more freely?
 


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