A lot of free space on SSD, but suddenly...

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SVH1971

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May 1, 2015
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Hello,

I'm not sure if this is a problem or not, but I'll describe the situation and you can tell me whether I should be worrying or not:

I have a 256GB SSD which had about 3GB of free space. I was burning a DVD with about 3.3GB of data (data from a separate drive, incidentally) and when the burn finished, I happened to look at "My Computer" and I noticed I had 85GB free (on the SSD) all of a sudden. Basically, what happened?

I have "Compress this drive to save disk space" unchecked, so I'm really not sure what happened. I ran CCleaner the day before and it only found about 3-4GB of stuff that could be deleted on the SSD. I've been looking around the drive and I haven't seen anything missing. Were there temp files that CCleaner missed?

Any help would be appreciated. Thanks.
 
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MetalSparks
That's...certainly odd.

If you don't have a S.M.A.R.T. utility already you should download one (eg. Samsung Magician) and do a S.M.A.R.T. scan. Look to find anything...unusual.
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MetalSparks

MetalSparks

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Jan 24, 2015
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That's...certainly odd.

If you don't have a S.M.A.R.T. utility already you should download one (eg. Samsung Magician) and do a S.M.A.R.T. scan. Look to find anything...unusual.
 
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SVH1971

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May 1, 2015
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Thanks for the response. I installed Samsung Magician. I did a SMART scan - the results are here: http://imgur.com/X7JA14g

Nothing (seems) unusual based on comparison to other SMART scans that I've seen online.

(I was actually just about to go out and buy a new Samsung 500GB SSD, since the current one hasn't had any issues over the year I've had it - or so I think, at least.)

Also, Samsung Magician rates the health of the drive as "Good" and it states that the drive is authentic.


 
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MetalSparks

MetalSparks

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Good to see that everything's okay. :D
...strange to see that you had a random free space read error.

Personally, unless you're desperate for more SSD storage, I'd recommend you save your money until you can buy an M.2 x4 SSD and a motherboard that supports M.2 x4. My 256GB Samsung XP941 boots Windows 8.1 in 2.5 seconds after post. However, Kingston recently came out with an even cheaper 256GB M.2 x4 with 1,400MB/s read (vs the Samsung's 1,000MB/s read,) and because M.2 x4 supports 32Gb/s total bandwidth it might be better to wait a few more months for a 2GB/s read M.2 to come out.
 
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SVH1971

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May 1, 2015
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Well, everything is still working. I suspect Windows deleted some non-essential files or compressed something without me agreeing to it.

Are the M.2 x4 SSDs available only for laptops?
 
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MetalSparks

MetalSparks

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Jan 24, 2015
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Hopefully that's the case. ...especially if a S.M.A.R.T. scan didn't detect corrupted/damaged blocks.

I've seen several laptops with M.2 ports, but they're only x2, and that would reduce the bandwidth of a x4 SSD by 3.2 times (I had a Samsung XP941 on both a laptop board and desktop board that only supported x2, and I only got 320MB/s read. Now that it's on a board with a x4 port I'm getting well over 1,000MB/s read.)

Most of the desktop boards I've been researching only support M.2 x2 or M.2 x4 at 20Gbps instead of 32Gbps. The only boards I've found with effective 32Gbps bandwidth are intel boards with either z97 or x99 chipsets, and only a few of those boards with those chipsets support x4.
 
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