Enteprise vs Consumer (SSD)
After 5 years of consumer SSD usage, I purchased a used SSD enterprise class. The consumer grade was Intel 535 480G and the enterprise grade Intel DC S3500. The differences are huge. The bottom line is that enterprise class devices seems not only more reliable but also with less bugs (or none) and 10 times faster in real life usage (!).
After some usage I experienced this serious write amplification bug. Thankfully intel had great (but slow) support. (another horro story is my IDE Transcend 32G SSD disk with bug that renders the SSD almost unusable. Very slow with PIO mode (700kB/s) instead of DMA).
Another serious bug, is the "power on hours" report in S.M.A.R.T is wrong. 10.000 hours vs 40.000 hours.
I decided to try the DC S3500 enteprise greade device, because I saw 16 reallocated Sectors and the "Media Wear Out Indicator" was in 96. In contrast the "Reallocated Sectors" on S3500 was zero and "Media Wear Out Indicator" was 99.
To my suprise the biggest difference was in random speed. I issued the command
time find /docs/src/linux-4.20.7/ -name i915\*
The results are that S3500 seems 10 times faster on random reads!
Intel 535 : 2.250s - (telinit 1) - forgot to test Sequential speed S3500 : 0.270s - (live) - 135MB/s 1.5Gb Host Sandisk Extreme : 2.718s - (live) - 260MB/s 3Gb Host
I also had a Sandisk SSD to test.
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