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Not Dead Yet: WD Releases New 6TB 2.5-Inch External Hard Drives - First Upgrade in Seven Years
(www.anandtech.com)
This is a most excellent place for technology news and articles.
Bought some of the old versions for backup drives. That was a mistake.
why?
Very high failure rate. even sony 2.5's have a similar rate of death. For some reason this form factor is just terrible for longevity
My bet is on density. You cram so much in such a tiny space, so any tiny imperfection or fault will corrupt the data or render the drive unusable.
At the time it was fine. I had an array of 4tb drives that I was backing up with a series of 5gb drives. They were just so unreliable; all but one failed while the array they backed up is still spinning strong.
Bingo. Sorry, had typed a reply about my failure rate and difficulties getting an RMA but forgot to submit.