Original Post
Written by
Edited January 26, 2024
at 02:56 AM
by
Server Part Deals via eBay [ebay.com] has the 20TB Seagate Exos X22 3.5" 7200RPM Enterprise SATA Hard Drive ST20000NM004E (Manufacturer Recertified) for
$196.00
Shipping is free. 30 days returns. Seller pays for return shipping
- Manufacturer Recertified, no bad sectors
- 20TB Capacity
- Model ST20000NM004E
- 3.5" Form Factor
- 7200RPM
- 512MB Cache
- 1-year warranty
Alternatively,
serverpartdeals.com [serverpartdeals.com] has it for
$209.99
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As enterprise drives have 1.5-2m MTBF and high duty cycles getting one a few years old then putting it in a home server where the duty is typically low doesn't really kill their lifetime (they may last 5+ years). However you don't REALLY know how they have been used. There are a lot of Chia drives starting to show up now that Chia farming not making so much $$$ and those drives are hit hard.
So when they come back they do the normal electrical and bench testing, flash new firmware and test for OOS (out of spec). The OEM then resets the SMART data and sends it into the channel. That is manufacturer recertified. Then the manu typically offers a warranty directly with them. If the warranty is not with the OEM it doesn't matter what they say it is not manu recertified.
The second class is returns where a seller buys off the market and does the refub themselves or buys from a refurbisher. It may or may not be as rigorous as the manu and the warranty is offered by them (as in this case). Depending upon the drive they may or may not be able to reset the SMART data (some ent drives require manu keys to do that).
The third class is OOS. Out of Spec. These are drives that are marginal or fail certain conditions of the refurb process. They flash special firmware on these to "dial down" the performance and or address the spec issue. The seller will put a warranty on these. MDD is a perfect example of OOS drives offered by SPD. I like to buy these for capacity and they offer a 5 year warranty. They are also significantly cheaper than the other two. I rigorously test them first before putting into service
This is very informative. Thanks! What is the method you used to test the MDD drives rigorously?
Appears focus now is redundancy - and here we get hardware/software hard drive pooling arguments.
Back to OP - I have 2x 20TB (X20s) and just added a 22TB (X22) as a three-way mirror from SPD for non-critical data (6k hrs & 500 hrs, respectively). Routine SMART tests and scrubs (TrueNAS) not a hiccup yet; but they're relatively young, so time will tell... Critical data is on a separate pool with a 321 backup plan.
https://slickdeals.net/f/17257156-14tb-wd-ultrastar-dc-hc530-sata-6g-3-5-7200-rpm-enterprise-hdd-refurbished-110-fs
I'm running two of those exact 14tb drives. No issues and no errors after running diagnostics (I commented in that thread)
The customer service from goharddrive is next-level. I got two DOAs (what are the chances?!??) Instant exchange, no questions asked. And that's for five years.
They hit around 220 megs a second when used in a desktop when transferring large files.
I have also had bad experiences with SeaGate.
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Is that a joke? I can't imagine 4k anime looks that much better than 1080.. it's not recording the detail of real life...
FML
There is literally not that many anime unless… oh. So you are a man of culture.
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There is a surveillance line but above it is the server line. Imagine demands of ten cameras writing vs 100,000 people accessing data at any one time…