Okay to disable Write-cache on SSD in Windows 7?

[nine9s]

I have a Samsung 830 SSD. For the last year, I had write-cache enabled in Windows 7, but recently turned it off. I notice no difference in performance. Perhaps there is benchmark difference, I did not do any tests, but I notice nothing different.

If no perceivable difference in performance, I figured I will leave it off to remove the risk, even if small, of data loss on power failure.

Is there any other benefit to write-cache other than performance - any reason I should leave write-cache on?

 

[Cerb]

In theory, SSD longevity, since writes can be coalesced with caching, and some writes that are overridden never need to be made at all...but in practice, that's splitting hairs.

 

[nine9s]

Thanks.

Perhaps I will turn it back on. I have lost power probably a dozen times, yet never had lost data, at least never had a problem, and SFC /scannow has never had to repair any files.

Is the risk of data loss pretty low if I leave write-cache enabled and keep buffer flushing enabled?

 

[Cerb]

Technically, caching should reduce it, but if you're doing lots of IO, there's plenty of chances, and if you're not, there aren't. Quantifying the difference would be difficult, at best, but I doubt it's much, either way.

Corruption that leads to bricking, while losing power, would be the worrisome thing, though, not a little data loss. NTFS has been handling data loss OK for many years, now.