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Do SSD's lose performance over time?

post #1 of 11
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I hear lots of people talking about how they won't reformat because it would hurt their SSD. I even googled this and found an OCN thread a year ago confirming that an SSD would lose 50% of its performance over the span is 6 months. Please tell me this isn't true.
    
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post #2 of 11
I've had mine 8 months or more and tested it last week and it hasn't changed not one % in performance. Fast as hell. I cannot speak to others mileage.
post #3 of 11
If you enable TRIM, SSDs won't lose performance. Also, as a side note, most SSDs will outlive you.
post #4 of 11
unfortunately it's true, SSD's have a limited number of writes. The actual lifespan of the drive would depend on the ssd's brand & model.
It's the price we pay for performance

EDIT:
Found this link:
http://wiki.eeeuser.com/ssd_write_limit
Edited by Cipher - 6/15/11 at 4:09pm
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post #5 of 11
post #6 of 11
I have degraded performance.

Began with 178MB/s. Using ubuntu10 x64.
Code:
sudo hdparm -t /dev/sda

/dev/sda:
 Timing buffered disk reads: 386 MB in  3.00 seconds = 128.51 MB/sec

I'm curious to format.
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post #7 of 11
Have owned my SSD since October 2010.

Performance is identical to day 1.

I have written 1664 gigabytes of data to it (a 60 gigabyte drive).

Reserve blocks remaining: 100%
Total number of reallocated Flash blocks: 0
Approximate SDD life Remaining: 100%
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post #8 of 11
It really depends on the SSD. Early models would degrade. TRIM only limits the degradation. Eventually the number of write cycle is limited but in reality their lifetime is probably equivalent if not better than a regular hard drive which is prone to mechanical failure.
More recent SSDs with agressive GC are actually not degrading at all in terms of performance. They may eventually but it will take quite a bit of writing before observing the problem.
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post #9 of 11
Most people say theirs degraded but I think they just get used to the performance after a while and it seems like its not as fast. Ive had mine since december and I hate getting on any other computer.
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post #10 of 11
I would say no, your performance should stay about the same (within reason, it will degrade slowly over the years though)

The larger the drive, the longer it will last.

The whole drive doesn't fail with SSD's, but individual blocks of flash do fail. But to counteract this, each block is given a counter and decrements one each time something is written to it. This makes sure the controller levels the wear (wear leveling) across the whole SSD instead of burning out certain flash blocks.

The larger the drive, the more blocks the controller has at its disposal to level the wear, making the drive last longer.

Unfortunately larger drives are VERY expensive.
    
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