Sandforce came and went away, so it did Samsung and Marvell, yet this poor Intel drive seems it will outlive all of them.
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Sandforce came and went away, so it did Samsung and Marvell, yet this poor Intel drive seems it will outlive all of them.
If Samsung 840 survives past 5000 cycles, then it will be a true wonder.
Maybe it is the error correction that makes the difference. Drives with weak error correction implementation will show a gradual increase of bad sectors, just like Intel G1 while those with a strong...
Some off topic: I am working as a software developer and I believe I have heard the "it's client fault" story tens, maybe hundreds of times and mostly from my boss, even when the problems were real. ...
If the drive needed a secure erase, I guess all the data was lost. And when data is lost, the drive is called unreliable. If indeed it is a firmware bug, then yes, 1 million SSDs are bad until the...
Try increasing the OP by 5% steps and see if it can survive longer. SLC based drives also need alot of overprovisioning to behave very fast. 128GB with 50% overprovisioning is like a 64GB SLC with...
Probably the drive just needs extra overprovisioning. Those 60GB are enough just to make the drive enter in MLC-1 mode. To keep it there, I would guess you would need to use even more over...
How is possible to use it as SLC? is there any firmware configuration that allows the cells to be programmed in "SLC" mode?
300K PE cycles would be ~8.65 years of endurance... in which alot of things could happen. The end of the world could come, or some meteorite could strike it... or Mrs. Bat with a hammer :D
Some thoughts for new charts which I would consider useful if possible: split the big chart on sections based on SSD capacity like <100GB SSDs, 100-200GB SSDs, etc. Also, maybe a more useful chart...
How about another kind of stress test? A continuous read of the files until it dies and watch for the evolution of bad sectors evolution. Now, the cells should be weaker and read disturb effect might...
With or without support, Windows XP will live forever, or at least as long there will be hardware to run it. There are tens of millions of people out there who use their computers (those old machines...
I have only monitored the load with HDDSentinel. The reported load of the SSD is ~5-7% while sustained speed is 3.5-4MB/s. The max theoretical QD for my load cannot be higher than 8, however I...
A wild guess is that it can write combine as it can easily use the SRAM allocated for archiving as a buffer, something like "if size<32K and not timeout, then wait, else archive and flush". The...
Low intensity writes are also impacted by page size. Most first generation Sandforce drives have 4K pages while in second generation, most of them have 8K pages. People usually use 4K clusters in...
I have also noticed recently that WA was close 1 for all writes in the last 4 months on my SSD. In client scenarios I believe it behaves better only when the drive is near full. In this situation,...
Just noticed this interesting thread, so I might add some useful comments.
First, I suspect that what we can activate/deactivate from windows is not actually the device cache, but just a fancy...
@Ao1 @Anvil
HDDSentinel is calibrated for specific numbers of bad sectors. It declares SSDs/HDDs almost dead if bad sectors value increases over a specific point
A better strategy might be limiting the write speed to a "safe" value that would still allow usage but extend the lifetime with a few more months. If drive becomes suddenly readonly, I am sure it...
Could it be that WA is actually counting what was written in excess of 1? like 0.10 meaning a real 1.1 WA?
Just an idea that hit me... couldn't a MLC SSD be used as a SLC with half capacity after those rated P/E cycles have been depleted? Underneath, both SLC and MLC cells are similar, so binary values 00...
Do you still have the original file? if yes, then could you do a bit to bit compare? I would be interested in how many mismatches are and if there are inside a single page or spread across multiple...
Maybe you hit some request limit.
How have you made HDTune requests to be aligned for benchmark section? Seems I'm not lucky in finding the option...
@Ao1
Indeed, I believe HDTune is a good...
Some tests on what I have access:
V3 120GB @ SATA3 - light server: Average 501MB/s, minimum 431MB/s
V3 240GB @ SATA3 - light server: Average 491MB/s, minimum 438MB/s
V3 120GB @ SATA2 - desktop,...
Well... mistery solved: 130-140MB/s read speed for incompressible data for 60GB model. This is all you can get from drive, nomatter if it is in RAID or not. Now we only need to find out the values...