What has prompted your interest in data hoarding?
Censorship and Memory-holing
This is very complicated to just give an answer, because:
It varies greatly based on the content. Animated compresses vastly differently than an action movie.
Varies greatly based on encoder. NEVC vs CPU etc
Varies greatly based on encoder options. I.e. -b:v -minrate -maxrate vs -rc vbr -qmin -qmaxcq values, etc
Varies greatly based on who is watching, the TV they use and their tolerance and experience.
Savings are greater at 4k than 1080p. But once you start adding HDR into the mix, you're in a whole new world.
Even the people with very discerning eyes can't agree on everything related to this topic. Wish I could just tell you do x... but you'll have to test various methods and determine what you are happy with.
or, if you just want some space savings... use some default setting that cuts it in 1/2 and forget about it.
I think in general they have lower RPM and run a bit cooler and use a little less power. That usually comes with a bit less performance.
But I'm hooked on the WD Ultrastar series. Server Grade and fast. Also has low power usage, at full tilt, mine use less than 10w each. I'm running 20 hc530's and been rock solid.
X12SDV-4C-SP6F
Man, I have been looking into the X11SDV-8C-TP8F and I'm so close to pulling the trigger. I love the form factor.Do you know of any with 25g networking that also has EDIT: "QuickAssist" enabled like the X11SDV-8C-TP8F ? The jump from 4 core to 8 core on those adds QAT
I looked at those cases, ended up going with this because easier to expand and hte PSU size:
Can find them for less elsewhere:
https://www.amazon.com/gp/product/B095YMXW1K/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Have a look at these HDD's, I have seen them as low as $150. i run 20 of them right now, some have 3 years run time now. Been very happy with this vendor, usually only a few hours of runtime:
https://www.disctech.com/Western-Digital-UltraStar-DC-HC530-WUH721414ALE604-0F31156-0F31284-14TB-3.5-7.2K-RPM-512e-SATA-6Gb
Storage type:
If you need the speed, stick with ZFS.
But it should depend on the data and how risk averse you are (how easy to replace the data is). I started all ZFS, now I use this method:
Unraid Array. For easily replaceable media, like movies. (Where I have a list and can easily re-download/upload) I use only the Unraid Array for that. Mainly for data that is write once read often.
Downside:
Unraid write speed is slow. No scrubbing.
Upside:
only the 1 disk that has the data spins up. This saves me about 180-200W of power and lots of wear on the drives.
It's also very storage efficient, I only run 2 parity disks with 20 drives. I wouldn't do that on a regular raidz. But with unraid data lives on each disk, so you don't loose the entire array if you lose more than 2 disks. This changes the risk math.
Then for all my critical data, that I need ZFS speed and scrubbing for, I setup a raidz1 pool with 4x Intel P4510 4TB. (Home pics/media)
Those I got for $200/pc new on eBay.