This is a 2 part question - what adpaters should I get to support my 2 new U.3 SSDs? And, if the honest answer is that buying into U.3 was a mistake, what should I switch to?
So, I bought 2 x CD8 U.3 SSDs, because they were going cheap and have good performance on datasheet. Also because my current setup (details below) supports U.2 and therefore should support U.3 via backwards compatibility (if the manufacturers implemented the standards correctly). But they arent responsive. I cant tell why.
So I would like to ask for recommendations for specific cards and cables to use instead, which people have found do work. I'll take cards that do "one SSD -> one PCIe socket" at a last resort (slots being limited!) but would like to connect 2 - 4 SSDs to one slot, if such cards exist. They clearly do for U.2/M.2. My motherboard supports bifurcation on at least some slots if that helps.
What are my options?
Also, if U.3 was a mistake, what form factor/connectivity might I go for instead? Is U.3 a dud for home servers? Do I write these SSDs off? It seems hard to find richness of U.3 connectivity components which may suggest less uptake. I'm OK switching adapters/cables to other types if price allows.
Background info:
So, I bought 2 x CD8 U.3 SSDs, because they were going cheap and have good performance on datasheet. Also because my current setup (details below) supports U.2 and therefore should support U.3 via backwards compatibility (if the manufacturers implemented the standards correctly). But they arent responsive. I cant tell why.
So I would like to ask for recommendations for specific cards and cables to use instead, which people have found do work. I'll take cards that do "one SSD -> one PCIe socket" at a last resort (slots being limited!) but would like to connect 2 - 4 SSDs to one slot, if such cards exist. They clearly do for U.2/M.2. My motherboard supports bifurcation on at least some slots if that helps.
What are my options?
Also, if U.3 was a mistake, what form factor/connectivity might I go for instead? Is U.3 a dud for home servers? Do I write these SSDs off? It seems hard to find richness of U.3 connectivity components which may suggest less uptake. I'm OK switching adapters/cables to other types if price allows.
Background info:
- Purchase criteria: Aiming to use 16 TB SSDs with decent quality and good 4K I/O (my optanes get 250k IOPS hammering when busy so I suspect it will help avoid needing specialist SSDs if the new main SSDs have saomewhat decent 4k IOPS), and otherwise, dirt cheap as possible and not hard to find, sold as used. Whatever tech is cheapest to get me these.
- Hardware:
Supermicro X10SRL-F running ZFS
Storage a mix of Optane 900P's for SLOG/ZIL/L2ARC/special (metadata), which hammer mixed 4k IO, and 20 x 8 TB HDDs for file content which I'm aiming to move to 16TB SSDs
Storage connectivity a mix of M.2/U.2 for the SSDs (via SSD->PCIE cards) and SAS for the HDDs (via 24-port HBA LSI 9305-24i in IT mode).