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this post was submitted on 28 Nov 2023
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Do you care about power consumption?
If not, grab a used Xeon workstation off eBay or Facebook. Grab a pci HBA card and you are set. Note that TrueNas needs lots of ram.
Personally, I wouldn’t want to pay power for an empty drive, so I’d setup the 3 12x drives in a zfs pool and store/sell the 16g drives until you actually need them.
Any reason to use the three 12 Tb vs the four 16 Tb?
How much ram is recommended? 32 gb of DDR4 "enough"?
Thanks for the response!
8gb is bare minimum for ZFS. 32gb would be great. ZFS will use all of it.
I would use a minimum of 3 drives because then it is easy to expand later (opposed to starting with 1 or 2).
You could start with the 16tb drives if you want. Personally I like to save power and every spinning drive takes 5-15 watts of power.
Somewhat of a misnomer. Yes, ZFS likes RAM, and yes it’ll use a lot if you let it. So the moar the better, obviously. But to suggest anything under 8GB is unworkable is a bit in the dramatic side. You may not get optimal performance in all cases but the system will function well enough to saturate a Gbps LAN and honestly if your budget is $600 with some found rust I doubt OP’s requirements are to stream several full bitrate 4K videos simultaneously.