Live data from Hacker News

Ubiquiti: Enterprise NAS, Built on ZFS

blog.ui.com

211–220 of 376 posts

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#212
post #23

Earlier quoted context omitted.

I've recently been convinced to implement a Unifi stack for my home network. I got a Cloud Gateway, a 10G switch and a couple WiFi APs. The Cloud Gateway will be sold or given away. It's utter crap. I'm now building an OpenWRT container on IncusOS as my Internet gateway/router. The switch is meh. It's easy to admin, which is nice - though I'm having to run UnifiOS on another container on said IncusOS. The APs are fin…

I love by Dream Machine Pro. Seems to just work and keep everything up to date. I have it running my security cameras as well and it has been pretty much bullet proof. What needs do you have for a router that the Cloud Gateway is missing or is bad at? A PiHole equivalent is about all I can think I'm missing.

My UniFi Fiber has an adblock integrated, wouldn't UDM also have it?

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#213
post #164

Earlier quoted context omitted.

Who said it was bad? I thought we were all pretty much in agreement that it was good, and the only thing holding it back from wider adoption into e.g. the Linux kernel was the poison-pill of Oracle's ownership and licensing.

Some years ago, there were mud-slinging myths being thrown around about ZFS. Things like "ZFS needs 1GB of RAM per 1TB of storage" and "it requires that RAM to be ECC" were once common to find online. These sort of thing seemed to lead to widespread beliefs that it was inefficient, expensive, and fragile. None of that is true, of course, but folks might remember and believe these myths and conclude that it is (or was…

I still got told that I need 16GB of RAM to migrate my 12TB btrfs array from a Synology with 6GB of RAM (2GB actually used) - by TrueNAS people.

Are they wrong?

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#214
post #37
post #21

Store page: https://store.ui.com/us/en/category/network-storage/products... $3999

That seems reasonable, I don't buy NAS for datacenters (just run a modest 80tb one for my home lab) but equivalent rackmount 16-bay ones from other vendors would be more expensive (maybe $5k-6k?) and with less polish.

I paid ~$4900 in October 2021 for a TrueNAS MiniXL+ with 8x14TB, 2x480G SSD (L2ARC/ZIL) and 64GB RAM, 2x10Gbps, with 3 year support direct from IxSystems. The CPU is an 8 core Intel(R) Atom(TM) CPU C3758 @ 2.20GHzStill going strong. I had drive failure and they replaced it. I had a fan failure and they replaced the fans. The price of the UI kit in 2026 seems to be reasonable.

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#215
post #23

Earlier quoted context omitted.

I love by Dream Machine Pro. Seems to just work and keep everything up to date. I have it running my security cameras as well and it has been pretty much bullet proof. What needs do you have for a router that the Cloud Gateway is missing or is bad at? A PiHole equivalent is about all I can think I'm missing.

IPv6 support is basic at best. The zone-based firewall is very prescriptive and limited. ACL stuff is not great. To increase the MTU of the physical interface connected to the ISP I would need to hack a systemd unit that did it on boot (I either need it at 1508 so the PPPoE interface uses 1500, or I need to MSS clamp it and have it effectively reduced to 1492). Initial configuration requires the device to be connecte…

The MTU thing is a bit bizarre - all connections I've seen on PPPoE in practice (fiber or DSL) used 1492 MTU to fit data into frames (and ISPs configured their routers like that too). What are you trying to hack with this unusual 1508 frame size?

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#217
post #215

Earlier quoted context omitted.

IPv6 support is basic at best. The zone-based firewall is very prescriptive and limited. ACL stuff is not great. To increase the MTU of the physical interface connected to the ISP I would need to hack a systemd unit that did it on boot (I either need it at 1508 so the PPPoE interface uses 1500, or I need to MSS clamp it and have it effectively reduced to 1492). Initial configuration requires the device to be connecte…

The MTU thing is a bit bizarre - all connections I've seen on PPPoE in practice (fiber or DSL) used 1492 MTU to fit data into frames (and ISPs configured their routers like that too). What are you trying to hack with this unusual 1508 frame size?

It's not a hack. It's literally having the tunnel at 1500 MTU.

Check my answer to the sibling comment [0]. It's also known as mini jumbo frames, and is documented in RFC4638 [1]. And here's a post [2] talking about using it on OpenReach FTTC, which is similar to my own infrastructure, only I'm FTTP.

[0] https://news.ycombinator.com/item?id=48589677

[1] https://datatracker.ietf.org/doc/html/rfc4638

[2] https://blah.cloud/networks/enabling-mini-jumbo-frames-rfc46...

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#218
The biggest concern about Ubiquiti to me is still its software/infrastructure quality.

Off top of my head, besides all the UI/UX glitches:

- They once allowed a human employee to access static AWS root access key.

- Their employee once claimed "remote access" was end to end encrypted, but later people figured out they probably just meant TLS in transit.

- They had a configuration error that allowed some users to access other users' camera feeds. They corrected the error, but never explained how the hell was it even possible or if they made any architecture design change to prevent that from happening again.

Now, ZFS is nice. But even after years of iterations, I still need to do 50% of my operations via SSH on my Truenas system. I can't imagine Ubiquiti to do any better

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#219

Earlier quoted context omitted.

Any video surveillance system is foiled by a simple mask. Thieves who know to plan a break-in when you're away usually do their homework and come prepared.

This is why I think someone should market a cheap SIGINT tool that collects BT/BTLE/Wi-Fi data from nearby devices. I've got this setup running on a Raspberry Pi near my front door and it collects all sorts of useful data, even from people walking by on the sidewalk, 30 feet and two walls away. At some point, I'd love to explore vehicle emissions more, too.

Funny enough a router collecting this data near a busy enough highway can bog itself down by collecting unique Wi-Fi identifiers from all the passing cars' networks, not to mention all the hotspots on passing commuter trains.

It never occurs to router makers a static base could see a million Wi-Fi networks come and go every week.

Re: Ubiquiti: Enterprise NAS, Built on ZFS

#220
post #181

> "Dual 25 Gigabit SFP28 ports and redundant power supplies for resilience" Can you actually saturate the links with the spinning drives? I've had the hardest time making my TrueNAS ZFS server fast when it was filled with HDD spinning disks. I initially also had 12 of them trying to get maximum speed. I have 128GB RAM and a 10G ethernet connection. I tried all types of optimizations like L2ARC via NVMe, etc, and it w…

It does have a dual NVMe cache; those in RAID-0 will saturate (e.g. I believe just one Samsung 990 Pro can write at just over 50Gbps). The bigger risk is the CPU. This is an issue with the Ubiquiti UNAS Pro 8, their ~$800 USD 8 bay NAS. In theory it has 10gig networking. In practice the CPU physically cannot transfer bits fast enough, because its a dinky underpowered ARM CPU that they clearly chose to hit that quite…

You can hit 10 gig aggregate on an A57 quite easily, given standard memory bandwidth (I've done it). They must be doing something stupid on the software side, like too many copies. Or if you're trying to shove 10 gig in one flow at 1500 mtu yeah that might be painful.
Post reply on HN