Sansung 840 Pro SSD and Over Provisioning

....also, if using windows8.1 and using the built in restore to revert back to an image you created, if OP is enabled then Windows must format the whole drive.

If OP is off then it restores the image without formatting the drive.

Just a point to remember.....

And oh ye, OP is pointless if you have loads of space on your SSD & if your really filling it up then you should really get a bigger SSD to meet your needs.
 
Phil2008 said:
I don't think that would work,, cos the whole point of leaving room free on the SSD, so the SSD isn't writing to the same cells all the time and can write to random cells, increasing the life of the ssd. If the SSD cannot write to random cells, it then prolongs its life by slowing down the drive.
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That's what the magician software does, resize the partition. That's what people do on non Samsung SSD'S to increase space for over provisioning. A lot of SSD's like the non pro and Evo already have "spare space" reserved for O/P. IIRC a 120gb evo is really 128gb with 8 gig hidden for TRIM. The Pro hasn't got any "extra space".

Sure someone will correct me if I'm wrong LOL.
 
metalmackey said:
That's what the magician software does, resize the partition. That's what people do on non Samsung SSD'S to increase space for over provisioning. A lot of SSD's like the non pro and Evo already have "spare space" reserved for O/P. IIRC a 120gb evo is really 128gb with 8 gig hidden for TRIM. The Pro hasn't got any "extra space".

Sure someone will correct me if I'm wrong LOL.
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My Samsung 120GB SSD 840 EVO SATA 6Gb/s Basic is showing a capacity of 111Gb in Windows
 
metalmackey said:
That's what the magician software does, resize the partition. That's what people do on non Samsung SSD'S to increase space for over provisioning. A lot of SSD's like the non pro and Evo already have "spare space" reserved for O/P. IIRC a 120gb evo is really 128gb with 8 gig hidden for TRIM. The Pro hasn't got any "extra space".

Sure someone will correct me if I'm wrong LOL.
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Surely if you partition a 100gb sdd to 60gb lets say, the SSD wont be able to access the other 40gb and it needs to access all unwritten cells? So OP must use a diff method as the drive needs access to all cells
 
"OP has a direct effect on SSD performance under sustained workloads and as the drive is filled with data. Guaranteeing free space to accomplish the NAND management tasks discussed above (Garbage Collection, Wear-Leveling, Bad Block Management) means the SSD does not have to waste time preparing space on demand, a process that requires additional time as data is copied, erased, and recopied. An added benefit is that OP makes all of the SSD maintenance procedures more efficient, reducing the WAF by ensuring there’s room to work."

Sounds like its only really beneficial if the SSD is filled with data so OP ensures there room to work as they say above.

If theres plenty of space available then there is no need.
 
Phil2008 said:
Surely if you partition a 100gb sdd to 60gb lets say, the SSD wont be able to access the other 40gb and it needs to access all unwritten cells? So OP must use a diff method as the drive needs access to all cells
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I wouldn't have thought that the internal tasks of the SSD controller (wear levelling, garbage collection etc) take any notice of partitions on the drive. It just needs some unused space to work with. I suspect that's what OP does, it simply hides a portion of the drive's capacity from the user. I suspect that the same can be achieved by creating a partition and leaving it empty, or just making sure you don't fill up the SSD too much.
 
maklabouhlel said:
I installed windows after formatting the whole 128GB and have used about 40GB. Samsung Magician says there is insufficient free space to set up Over Provisiong? Can I do without it?
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Again, the question should be asked "why does Magician say there is insufficient space for OP ?".
 
If you OP from the start, another advantage is that the reserved space has never been used by the O/S. If you don't OP, windows and apps can write temp files ect anywhere on the SSD. OP will ensure a fixed space only used by the SSD.
 
metalmackey said:
If you OP from the start, another advantage is that the reserved space has never been used by the O/S. If you don't OP, windows and apps can write temp files ect anywhere on the SSD. OP will ensure a fixed space only used by the SSD.
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Is there any advantage in that ?
 
I think that due to the way an SSD works, keeping data "organised" (defragmented, if it were a mechanical drive) brings no performance advantage.

I don't see any problem or disadvantage in enabling OP after Windows is installed. In fact, most users will have to install an OS before OP is enabled.

One thing is for certain, SSD technology is rather clever !
 
Dervious said:
Again, the question should be asked "why does Magician say there is insufficient space for OP ?".
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No Idea, if its the boot drive, maybe window has locked it. If you have another drive, try installing windows on that and then see if it will do it without the SSD being a boot drive.
 
Phil2008 said:
No Idea, if its the boot drive, maybe window has locked it. If you have another drive, try installing windows on that and then see if it will do it without the SSD being a boot drive.
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That's what I'd do.

It does seem odd that OP couldn't be enabled after a Windows install. I'm not sure if OP requires formatted space on the SSD (I`ve always enabled it after OS installs). Maybe something is wrong in the way Windows formatted the SSD in the first place. We can debate the pros and cons of using OP, but the more important question for the OP is why OP doesn't work.
 
Dervious said:
That's what I'd do.

It does seem odd that OP couldn't be enabled after a Windows install. I'm not sure if OP requires formatted space on the SSD (I`ve always enabled it after OS installs). Maybe something is wrong in the way Windows formatted the SSD in the first place. We can debate the pros and cons of using OP, but the more important question for the OP is why OP doesn't work.
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I think we have done the pros and cons to death about OP, Basically if your a experienced computer user, you wont need to use it, as you will know its bad to totally fill up a ssd and if your a beginner with pc's or building a system for someone, use OP... End of

You could try, backing up the ssd with imaging software,, secure erasing the ssd, restoring the image again and then see if it will do it then.
 
Phil2008 said:
I think we have done the pros and cons to death about OP, Basically if your a experienced computer user, you wont need to use it, as you will know its bad to totally fill up a ssd and if your a beginner with pc's or building a system for someone, use OP... End of
Click to expand...

I think I'm an experienced user, and I have enabled OP on my SSD !

Should I disable it ? :D
 
Dervious said:
I think I'm an experienced user, and I have enabled OP on my SSD !

Should I disable it ? :D
Click to expand...

You cant enable it atm, so what are you on about:D, but yeah Im not going to say "if your a experienced user, dont enable it" as everyone is different, plus its piece of mind if its enabled.
 
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