In a few days I'll resume running CrystalDiskInfo or HWiNFO to learn whether they're related to the 50-ish WAF. I'll continue to log the MX500's daily WAF. (The pc had been powered for many weeks, with occasional restarts but no shutdowns, so I theorized that the ssd might need to be reset by a power off/on, similar to how Windows must be restarted every few weeks to prevent Windows from misbehaving or stop it from misbehaving.) Perhaps the WAF improvement was caused by one the following actions yesterday: That's still poor, but much better than its 50-ish average during the previous 3 days (when I began recording the ssd's "daily WAF," calculated using the daily increases of the F7 & F8 S.M.A.R.T. I have some "good" news to report: My Crucial MX500's Write Amplification Factor is down to about 11 during the last 24 hours. The spreadsheet at the left of the image shows the recent rapid acceleration of the decrease of Remaining Life. My pc has Comodo antivirus suite, and perhaps I'll see what happens if I disable it.Īnother problem I've had is that Momentum Cache wouldn't activate.Ĭrucial/Micron tech support have been unable to figure out either problem.īelow is a screencapture that I made after the Remaining Life reached 93%. In the thread at linked above, some people several years ago blamed BitDefender for a WAF that was approximately 25 (assuming I calculated correctly) in a Crucial M4 256 GB ssd, but in my opinion a huge WAF should always be blamed on the ssd, not on software running on the pc. I've used the F7 and F8 SMART attributes to calculate its Write Amplification Factor (WAF = "1 + ΔF8/ΔF7" where the Δ refers to the increase of the attribute over a period of time) over recent days, and WAF has averaged approximately 50 over the last three days.
Previously it dropped from 95% to 94% after writing 390 GB, almost as terrible. For example, it dropped from 94% to 93% after the pc wrote only 138 GB.
I too have a Crucial MX500 500GB ssd (SATA) and I'm alarmed by its accelerating decrease of Remaining Life.
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