Solid State Drives - Are they Reliable?
A few years ago SS Drives were prone to failure.
I'm sure reliability has been improved, but are they as reliable as the old hard drives are?
Anyone know the mean time between failure, or similar data? I've tried googling for this, no luck.
Posted Oct 17, 2011, 8:45 PM UTC
They're as reliable as classic spinning drives and sometimes rate better. Apple and others wouldn't use them in notebooks and smartphones en masse if they'd fail easily.
On classic drives the mechanics wear out, on SSDs the memory cells wear out (delete cycles are limited). Controllers of SSDs can do wear leveling and can also mark bad blocks just like classic drives do it. Larger drives have a longer lifetime because of this.
Major laptop manufacturers, like Apple, wouldn't put them in their laptops if they felt the failure rate would be significantly higher than traditional drives. As much as a manufacturer would like to have a good support rating, they'd really rather the last time they interacted with their customer was the point of sale, at least until they return to purchase another product. Reliability is much more important than support rating, and less expensive.
You say that like it's a bad thing. SSDs are better than spinning drives in pretty much every regard. That's the simple reason they're used. Sure every manufacturer including Apple would like to see the customer at the point of sale for the last time. But they still understand that above average customer support is part of their success.
I don't think it's a bad thing at all. I'd rather the last time I saw them was the point of sale too. I appreciate products that work properly all the time, and when I need a new product I will support companies that have sold me reliable merchandise in the past.