March 13, 20251 yr Hello all, I have a unraid server on a Dell PEC2100, and I am running a cache pool of 2x Samsung 860 EVO 1tbs. I have at this point installed enough stuff on my cache drive app-wise that space is starting to be an issue. I am thinking about replacing them with 2x 2TB SSDs ($320ish). This is where I am kind of wondering - I am really, really loyal to Samsung and I feel like they are the top performers for your SSD dollars, and that with so many writes to cache, it kind of warrants buying the best. I have bought a ton of these drives over the years and I've never had a single one fail, ever. But... is this rationale true? I can't install NVME, so it's going to be SATA - so extra performance is wasted when I am never going to crack 550MB/sec anyway, at best. A pair of Lexar 2TB NS100 cost about half the price, $90. Crucial BX500 cost $110. Sandisk SDSSDA-2T00-G26 run about $100, etc etc. Is the Samsung EVO worth the premium for this specific application? Or is my brand loyalty a little misplaced here? Thanks!
March 13, 20251 yr Depends mostly on the write speeds you need, read speeds should be very similar, but cheaper SSDs cannot sustain high write speeds for long, when they exhaust the pseudo SLC cache speeds can slow to 100MB/s, or lower in some extreme cases, the EVO and other high end SSDs, lile the Crucial MX500, will be able to sustain at least 300MB/s, so that would be the main difference.
March 13, 20251 yr Author I see. That's a pretty big difference, I frequently am pushing as much as 150-200gb at a time.
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