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Neat, but I see it personally as the worst of both worlds, unless you have a bunch of NVMEs sitting around.
You're going to be bottlenecked by SATA speeds, so even one NVME would be bottlenecked, let alone 2. So for me, going with a larger SATA SSD (which you could of course RAID with another) would probably get you still better speeds.
Then you have issue of it breaking. Personally, I have never had good luck with secondary board RAID items like this. They always fail after a while. The only stable raids I have seen are motherboards and SAS. Whenever I see "Make this interface into another RAID" I think of the.... 5-7 failed cards sitting behind me.
M.2 is a form factor. Under that form factor it can run the NVMe or the SATA protocol.
Answered elsewhere in this thread. Yes, I'm aware, but the only real life use case is plugging in nvme drives
There are m.2 sata drives. They have a different pin layout and everything. It depends on what you want out of the QoS of your system and what bottlenecks you have.
Yeah, just then I still think it's the worst of both worlds. You still have a single point of failure, that raid controller on that device probably can't be ported anywhere else (at least most of the cheap controllers I've seen haven't been able to, most mobo raids I've been able to recover), and so if you don't have redundancy anyway, then a larger SSD is to me, the way to go. Honestly a single SSD and a nightly backup to an external would be how I'd do it if I was on a budget and only had one SATA port remaining.
Yeah thats the problem with hardware raid in general.
If speed isn't the concern I would use Sata drives. They are cheaper anyway
If you don't have a bunch of nvmes lying around that you want to use, then why not just go for a few sata drives and raid those together? You do what you like, to me that just seems like more storage for your buck
Just as an uninvolved third party, I'm trying to figure out how NVMe entered this response to a question about a SATA to SATA form factor converter
Because M.2 equals NVMe in some people’s minds, I suppose
Right, mostly because the only things you plug into an m.2 slot right now are nvme drives. Which is why I'm honestly trying to figure out what OP wants. They say speed isn't a concern just storage, so why not go for a larger SATA SSD then? Unless I'm missing something, buying this adapter to add m.2 slots would only give op a couple m.2 slots, vs just adding a sata drive itself. Honestly I don't know what they're trying to to do and their comments have made me more confused
My desktop has a wireless card in an m.2 slot (as do those of my wife and both children), one of my laptops has a SATA m.2 as its only drive because it only has a SATA m.2 slot, another laptop has a SATA m.2 as the scratch drive because it has one NVMe and one SATA, and "the only things you plug into an m.2 slot right now are nvme drives" is such a wild take that I'm baffled as to where it came from
Which is fair, I suppose, if you really only have one SATA port left. Then a RAID 1 through that device might work well enough. Wouldn’t be my first choice though… and definitely not for RAID 0. Not that RAID 0 should be anyone’s first choice, nowadays.
Neither is there if this controller dies.... Like the other person said, my response would be "you don't have 2 sata ports then?". Better raid support and better capacity. Take it from my life lessons. Raid 0 is not a backup, it is barely redundant. It's primary use is production environments where you do not want your system to go down when a drive fails.
Okay, I don't know why you're downvoting me, and I'm over it. I was trying to help you and understand the question, I was trying not to be argumentative. My honest responses haven't changed on your questions, I think it's going to fail quickly, I think you're going to regret it, and I don't think it's good for your use case. But hey, what do I know, I've only done basically the same thing and self hosted stuff for 15 years, and was only trying to help you avoid the mistakes I made. Sorry I didn't just agree with everything you said and was trying to figure out alternatives.
But you adding nvmes on the same slot?
M.2 is a form factor. Under that form factor it can run the NVMe or the SATA protocol.
What are we seeing here?
You fan pretty effective software raid with Linux built in drivers. No need for hardware raid, specially not cheapo ones...
Running Linux software raid for 20+ years with zero issues... Currently on USB3 and USB-C disks, but in the past all kind of mixed solutions (ide/sata/esata/USB/FireWire...).
Speed is not a big issue in my experience if you consume your media over network anyway.
also nvme drives get HOT, and sticking em together in an enclosure with no heatsink or fan would probably have thermal throttle under load.