But (as I asked earlier ) does the fact the LaCie 1TB drive has two 512GB SSDs in RAID0 double the chance of it failing compared with the Apple internal 768GB SSD?
Oh certainly yes, but if that is what's worrying you it also zeroes the chances that you stop working if the drive fails, as you'd still would have your iMac and could work with your backup, while if something internal fails, goodbye iMac.
But wait, if you are worried about reliability and can't risk your work to stop, i suggest you buy TWO identical iMacs in case one of them fails...just as smart.
Not sure it's the right angle you want to pursue in justifying yourself buying it is something rational...
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Thanks for that - that largely confirms what I thought. I was hoping vannibombonato would give us his thoughts on this as he is so keen we use the LaCie external SSD rather than get the Apple internal solution
Just saw it...really, if you think it's smart to buy the Apple thing because of reliability, you're just fooling yourself.