Comment on What's your opinion on Ubiquiti/Unifi gear?
teawrecks@sopuli.xyz 1 day ago
I have an edge router and switch, and two unifi APs. All accounts running locally. Works fine for my uses, though I think if I had it to do over again I’d investigate pfsense or opnsense. Not sure about hardware tho.
since it uses ZFS I don’t know it would be good for home use
TrueNAS is all I’ve used for my home for the better part of a decade. It’s been fine, what is your concern?
early_riser@lemmy.world 1 day ago
ZFS seems pretty RAM hungry and I don’t believe you can add new drives to an existing volume.
Voroxpete@sh.itjust.works 1 day ago
This is a common misunderstanding.
Short version; ZFS isn’t RAM hungry, it’s RAM aware. If your system has unused memory lying around, ZFS will use it to improve read performance. But it will give up that memory the moment anything else needs it. Like many other Linux processes, it’s just making the best use of the resources that are available.
No longer true
tofu@lemmy.nocturnal.garden 1 day ago
Oh hell yeah, I didn’t know about the raidz extension. That’s amazing!
It’s in the latest TrueNAS versions. www.truenas.com/blog/electric-eel-openzfs-23/
early_riser@lemmy.world 1 day ago
Does TruNAS support this feature?
Related, will TruNAS work on a mini PC with an attached DAS?
Voroxpete@sh.itjust.works 1 day ago
It’s part of ZFS 2.3.0, so it just depends what version TrueNAS is shipping with.
possiblylinux127@lemmy.zip 1 day ago
How is the DAS connected?
possiblylinux127@lemmy.zip 1 day ago
It does take time to free ram. If you need the ram for other things it is best practice to limit the arc cache
Voroxpete@sh.itjust.works 1 day ago
Only when you have to write out to swap. In the case of something like ZFS, it stores data in RAM, looks for it there, then looks on the disk. So freeing up the RAM is instantaneous; you just mark the space as free, then the other process writes into it.