Link: https://old.reddit.com/r/DataHoarder/comments/1vf5akx/serverpartdeals_refurbished_seagate_exos_x20z/

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The original was posted on /r/datahoarder by /u/SpaceCowboy321 on 2026-08-04 09:20:35+00:00.

https://serverpartdeals.com/collections/18tb/products/seagate-exos-x20z-st18000nm013j-18tb-7-2k-rpm-sata-6gb-s-512e-3-5-refurbished-hdd?variant=50619084505366

I got notified via email today that ServerPartDeals has the Seagate Exos X20z back in stock for $299, which I think is a decent deal considering what prices are like nowadays. I have had 5 of these running in my Unraid setup for the past 4 years without any issues, and I just ordered some more for expansion/backups. However, there are two main things I should point out:

1. These drives are "seller refurbished" by ServerPartDeals, which essentially means they are just used drives that are verified to not have any current issues, so generally not as good as manufacturer refurbished. However, they at least come with a 90 day warranty, and ServerPartDeals is also known for good customer service if there is an issue.
2. These are HSMR (Hybrid Shingled Magnetic Recording) drives, which means they can operate in either CMR mode at 18TB or SMR mode at 20TB. While I'm not sure if it's 100% guaranteed, in my experience and from what I've seen online, these drives come in CMR mode by default. In general, unless you have a specific reason, you probably want them in CMR mode, so they should be fine as is.

Those two factors aren't issues for me, but they might be for some. Just do some research and decide if the slight risk is worth the lower price.