On Mon, Feb 13, 2017 at 11:44 AM, Daniel Frey <djqf...@gmail.com> wrote:
> On 02/12/2017 02:40 PM, Alan Grimes wrote: > > So does anyone have any evidence of a current generation SSD lasting > > more than 20 days? > > > > I have tried various SSDs (multiple brands and generations) over the > last maybe five years and found that they're very unreliable (multiple > brands too.) > > I know everyone's saying these things are reliable but out of four SSDs > I own, I've had to replace three, some more than once. > > I just don't use them for anything I want to stay working. Right now I > keep them in my mythtv frontends as I can restore the OS easily. One one > of them the company involved (Kingston) even sent me a newer drive/model > as it was replaced more than once. > > I know they're fast. But what's the point of going 500 MPH and crashing > into a mountain with no chance of repair/recovery. I went back to a > (relatively) slower rust raid10, and it's been reliable for the last > four years. At least with a hard drive failure, you stand /some/ chance > at recovery, not zero. > > The one SSD that hasn't had to have been replaced under warranty is in > my laptop which I generally use maybe a dozen times a year. I fully > expect it to die one of these times when I boot the laptop (it's one of > the old models.) > > My experiences are with Samsung, Kingston, Intel, Crucial and AData > SSDs. The last one I bought because these things I view as throwaway > devices (the warranty expired on the original Crucial) and don't want to > spend big money on them. I have noticed the AData SSD's performance is > not as fast now as it was new (maybe 1.5 years ago?) So it'll probably > pack it in soon too. > > Dan > > I've had more than one spinning rust drive fail hard over the years as well, though yes, you do usually have some chance of recovery from those. Gambling on that chance by leaving a given disk as a single point of failure is still a bad idea, spinning disk or not. The point that you went from single-disk SSD back to raid10 makes me question why, if your uptime requirements (even if only for your own desires on a personal machine) justify raid10, you weren't on at least raid1 with the SSD setup. As for performance degredation on SSDs, that I've definitely seen on pretty much every brand, though I've had good luck doing clean reloads on samsungs once or twice to get speeds back up some (somehow, even trim doesn't seem to keep things at their best). I can't say they're more or less reliable than spinning disks, though they do have the benefit of no moving parts to wear out over time (thermal cycles can still cause a physical failure on them, though). -- Poison [BLX] Joshua M. Murphy
