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The expander documentation is somewhat complete and does say that expander cascading is supported, but the one thing it does not mention at all is if ports H and I support "input". It does explicitly say that ports G, H, and I can't be directly attached to disks, which is somewhat odd. For...

Again, there are many datacenter NVMe drives than can sustain close to 2GB/sec for the entire size of the drive. A 3.8TB drive could handle that speed for over 30 minutes. This is a trivial solution for up to 25Gbps on the ingest network. Basically, the speed of the ingest network determines...

Yes, if you truly ingest 24/7 at faster than the pool write speed, then you will eventually slow to that. In that case, though, you designed your system incorrectly. And note that tiered storage isn't cache...you don't care about getting the data from the ingest to the pool within some fixed...

The safest and cheapest way to "long term archive" a "massive amount of data" is tape. If you actually need spinning-rust speed access to the data on a regular basis, then it's not really archive. That said, I'd much rather use a distributed filesystem for a such an archive, if I really wanted...

It's not an external enclosure...it's internal, to be installed in 3x 5.25" drive bays. Good external 4-5 bay enclosures are expensive because they provide full bandwidth to every drive, good cooling and have a decent power supply. You can get cheap one that will bake your hard drives, or not...

These really have limited effect, as you pay a lot of performance penalty for the safety of ZFS. I have a Ubuntu system with 128GB of RAM that has a LSI 9361-8i with 6x 4TB drives in RAID6. Using a 3.2TB U.2 NVMe drive (HGST SN100) as cache for lvmcache, I can burst to well over 10GBytes/sec...

Basically, if it went it, it should come out. There's no "one way" catch spot on the chassis. Remove all the other drives in same column and the two neighboring columns. Then, wiggle it up and down while pulling/pushing. If that doesn't work, it's possible that a screw wasn't installed fully...

Yes. TPM2.0.

I booted a WinPE of Windows 10 and it had drivers for the 530SFP+. But, you can always follow the instructions in this thread.

I'm pretty sure the LSI 9361-8i will do what you want, and can be bought for $40. I recommend that seller, as all the LSI RAID cards they sell have every feature (RAID6, CacheCade, etc.) unlocked. I use Windows 10 and boot off NVMe and use the drives connected to the LSI for general storage...

And we all know how that worked out, right? :p Seriously, spending up to $500 on a good 3D printer (Bambu, Creality, Prusa, etc.) will end up saving you a lot of money in the long run if you plan on printing even a few items. Where I used to work, we had an HP Sprout (3D scanner plus the...

HBA: https://www.amazon.com/dp/B0C6T8HG52/ Cable for DIY: https://www.amazon.com/dp/B09ZLGHZ5S/ Hot swap bay and cable: https://www.amazon.com/dp/B0856Q2F4R/ and https://www.amazon.com/dp/B09NBBSLR1/ You'll also need SATA power connectors to plug into the cable/hot swap bay.

That's a single-expander backplane, so the two ports nearest the right side of the board (looking from the back of the case) are "input" and the other two are "output" for cascading to another backplane. You can also connect a breakout cable to one of the output ports. I do this to connect the...

This can often be a name-to-IP issue. Historically, LMHOSTS and NetBIOS over TCP/IP was used for Windows networking. Today, nobody ever edits their LMHOSTS file (which is only useful for static IPs), and DNS is the primary way to map names to IP addresses. The issue today is often that the DNS...

I got 3 alerts today for 3.84TB Samsung PM863A (lowish endurance of 0.7DWPD), all at $250: https://www.ebay.com/itm/166733225298 https://www.ebay.com/itm/126452371704 https://www.ebay.com/itm/276440770462 They aren't SAS, but it's tough to find larger SAS SSDs that don't have proprietary firmware.

In addition to what @nexox said, single CPU "workstation" Supermicro boards tend to have the DIMM slots parallel to the back panel connectors, while "server" boards have the DIMM slots perpendicular to the back panel. This is because servers (and any dual CPU board) pretty much universally use...

Drive price is $78 with $10 shipping (to the US) regardless of quantity. Buyer accepts offers, but I am not buying this deal as I don't need drives right now. Picture of label does not show any OEM branding. https://www.ebay.com/itm/326100706605 These are host-managed SMR drives. Thanks to...

Wow, those prices have jumped. When I bought my X11SRA new for $350, I was considering a X11SRL, but I didn't want the IPMI (which means no individual fan control) since I was going to use it as my workstation, and there is no non-F version of the X11SRL. At the time, the price was only about...

The card supports up to 32 NVMe devices (a hard numerical limit), and provides only 32 lanes of PCIe 5.0 bandwidth to those devices. The switch does give 4 lanes to each device when active, but obviously has to use some sort of multiplexing to do that to all devices. So, you only get 8...

Only at one side: It gets even worse when you realize that the whole SATA spec is now incorporated into SATA Express, which allows AHCI or NVMe over a standard SATA connector (which is like the above but without the 13 center pins). This is just like M.2 (or NGFF) can be either NVMe or SATA...