Many thanks for those great ideas and timely advice, MUCH appreciated!
Semi portable drives are what I’m considering (2 kgs or less, fits in a backpack) so that seems to narrow things down to the Lacie and G-Tech range.
I’ve only one machine with a Thunderbolt port and if I had a problem with it then I’d be back on my earlier-made iMac which only has USB 2 and Firewire 800. If I had only Thunderbolt connections on my chosen HDD then I’d need some sort of adapter which would let me plug a Thunderbolt disk into my USB/Firewire iMac such as, maybe, the soon-to-be-released Kanex https://www.kanexlive.com/article/thunderbolt-adapters – or have I misunderstood something here?
According to the G-tech specs their HDD 4TB Thunderbolt/USB3 drive (https://www.g-technology.com/products/g-drive-thunderbolt) is significantly slower than their dedicated Thunderbolt drives. Same slower speed irrespective of how it is connected…?
However, the Lacie looks like it might well fulfil my requirements: https://www.lacie.com/intl/products/product.htm?id=10600 It boasts speeds up to 215MB/s for both Thunderbolt and USB3. Is there a downside?
Last question (for now): in the circumstances, RAID 0 would be a good idea for a 4 TB drive and FCPX? Makes it go even faster..?
Thanks for reading all this!
FCPX and PPro 6. iMac 24 + MBP 17″. Near Geneva, Switzerland