afair this test was run 24/7 with no power down time. Earlier test (the one with 830? I think he moved computer mid test and had to power everything down) showe

afair this test was run 24/7 with no power down time. Earlier test (the one with 830? I think he moved computer mid test and had to power everything down) showed drives look healthy until you let them sit offline for a while, then it turns out all data evaporated. 840 is especially broken and dramatically slows down when you dont touch the data for >month. The "fix" is firmware silently rewriting everything in the background burning thru the rewrite cycles.