Parts for temporary new workstation which gets to become a gaming PC once Zen 3 Threadripper is available:
AMD Ryzen 9 5950X
Noctua NH-D15
ASUS Prime X570-Pro
4x 32GB G.SKILL 16-22-22-42 DDR4 3600
Samsung 980 Pro 2 TB
Fractal Design Meshify 2
Reusing an existing GPU and PSU.
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It gets to inherit a reference design GeForce 1080 Ti and 80 Plus Titanium PSU (EVGA SuperNova T2 850W). GPU can be replaced later when it gets to stop being a workstation.
Nice that I was finally able to get new CPU and other parts at proper retail prices. Chip shortage sucks.
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Why not spread your storage over multiple SSDs, partly raid 0, partly mirror?
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I've never had an SSD fail, let alone a high end one with high durability NAND and higher quality parts. It would be a major inconvenience but not a major problem beyond wasted time.
RAID only makes things worse with a high-end NVMe SSD. Already insane overkill performance too.
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I prefer having fewer things that can go wrong and from my perspective, redundancy via RAID only adds more that can go wrong. If the SSD is going to fail, I need a new SSD anyway, and I'd rather just deal with that. I don't want to deal with another layer of latency/complexity.
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Look at the specs for samsung.com/semiconductor/.
5GB/s sequential write, 7GB/s sequential read, 1,000,000 QD32 IOPS, 60,000 QD1 IOPS.
It's immensely overkill for my needs. I need the Pro line because huge amounts of data is written but the performance is really not a factor.
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It's substantially faster than the Samsung 960 Pro 2TB in my old workstation but that won't make any difference.
Having 128GB of memory means there's a massive amount of cached data and plenty of space to buffer writes.
Latency is something that does matter a lot though.
RAID hurts latency and IOPS. It's not really suited to the age of high-end NVMe drives. It's also really hard to actually be I/O bound with this kind of drive.
Latency is what really ends up bottlenecking performance for I/O for anything that I'm likely to do, not the rest.
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I currently have 64GB memory and a 10 core / 20 thread CPU. For most of the workloads, upgrading to 128GB memory and a 16 core / 32 thread CPU will primarily provide a bunch of additional cache.
There's a downgrade from quad channel to dual channel RAM but it's much faster RAM.
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