Seagate IronWolf Pro, 20 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)

Product works great. Luckily I didn't get stuck with one of them fake ones that Amazon had on their site

These 20TB drives are slowly replacing my 10TB HGST Drives in my RAID-6 configuration. 1st drive went without a hitch. 2nd drive also good (server is hot-swappable w/auto RAID rebuild; super simple replacement). 3rd drive could NOT be recognized. Sent back as DOA. Installed the replacement w/o an issue. Noticing at this point that ALL these drives run close to 105-106 deg. 4-6 deg hotter on average than the 10TB HGST drives. Hopefully this won't become an issue? Will be installing the last drive this week (4th drive of five). Will update after system reconfiguration to take advantage of the capacity doubling. Update: 4th Drive is also bad. Sent back DOA. If the DOA replacement (for the 2nd time) is good, that'll mean two of six drives were bad. 33.3% DOA rate... How do you feel about that? Keep in mind that these are NAS drives, usually in a large RAID array, so everytime one is replaced/upgraded the RAID must rebuild. A large RAID means a long rebuild time. And if the drive is bad, you have to put the old one back in (in case of an upgrade) and the array has to rebuild anyway. Whats worse, if you're NOT upgrading, but instead repairing, now you've got a degraded array for a few more days with doubts that the replacement drive will work? This situation sucks. Regarding my earlier comments regarding running hotter - these 20TB drives, after examining the label, consume just over 50% more power than the 10TB HGST's that are being removed/upgraded. This choice may have been a grave mistake. Thank God I initially setup a RAID 6 as opposed to a RAID 5 or I'd be on pins and needles. Remember, these drive are data rated for how much data they can read/write in thier lifetime. This rating, if even accurate, is getting chewed up every time there's an array rebuild (including the rating on the existing working drives in the array). Unhappy situation. Perhaps Western Digital was the better choice? EDIT 7/25/2023: Yup, 6th drive worked. All four drives have now been replaced/upgraded. Two of six were DOA. That seems ridiculous to me. RAID has rebuilt 100% and now is under expansion to take advantage of the capacity doubling (these drives are 2x capacity of the drives they replaced), another 53hrs. I'd be done by now if it weren't for the DOA drives. Now I have to live with the constant worry of possible pre-mature failure. I mean, based on the increased heat and the DOA rate, what would you think? EDIT 3/20/2025: The 4 of 6 drives that worked are still working 20mo later. They are still selling these exact drives, but now for 15% more 20mo later?

Returned - Day one after delivery after proving it never worked - Refund delayed with No reason - Amazon AI response suggests not to worry. This note to “not worry“ was repeated several times, as additional Refund delays occured. NO REFUND yet. I’m starting to worry Refund honored - ordered a replacement and DELIVERED we are good to go all five racked and status shows we are good to go. 100tb online.

Shipped and delivered as promised and the Seagate Ironwolf 20TB drive (OEM version) is working flawlessly.

Worked asexpected. Swapped a drive in my RAID5 NAS.

I purchased 8 of these drives and within 3 months, one was reporting bad sector errors, which is an indicator of a cascading failure. Under warranty and the agreement of a customer service rep doing my RMA, they would send me a replacement unit once they received my faulty unit. I waited a month after my drive was sent to them and I heard nothing back. I contacted another of their representatives and told me they would not send me a replacement because it was flagged with "dents/scratches/damages". I have now been "escalated" to a follow up team where I will now have to wait for an email from them and I'll most likely have to argue and ask why they are trying to not honor their warranty and give me this roundabout way of telling me to go away. This way of treating your customers who have paid over a thousand dollars for your product is awful. I do not think I will do business with Seagate again and I do not recommend that anyone does either.

I received the hard drive damaged at first. After reaching out to customer service, they promptly sent a replacement. This time everything was fine — the drive performs excellently, runs quietly, and has ample capacity. Overall, I’m quite satisfied.

I originally purchased 4 of the 20 TB IronWolf Pro drives for my NAS. They are all working and performing as expected. I purchased 2 more to fill the empty bays in my NAS. unfortunately, one of them was DOA making clicking sounds and not recognized by the OS. I returned the DOA drive, but was not offered a replacement, only a refund. Usually that's not a big deal, but the price of a replacement increased by $70. I ordered a new drive that I am still waiting to receive. I spoke ti an Amazon customer service representative who stated they could refund the price difference to me after they process the return. I'll update this review with the final outcome.

In 7 orders, two were dead on arrival and one was a vase, leaving 4 working drives. After returning the two faulty items and incorrect item, I've received only 1 out of 3 refunds. The price increased from my order, and Amazon refused to replace the drives, instead requiring me to request a refund and order again. I'd probably take the risk and buy another one of these to expand a RAID 6 array, because if one or two fail I won't lose any data. If you're buying one of these for a desktop machine, then I strongly recommend that you have a good backup strategy in place, as you should anyway. Bottom line: high chance of DOA as others have noted, possibly lengthy wait for replacement and refund, and where 42.9% fail or are a vase - that is not confidence inspiring for critical data.

Es Genial El Disco Duro Trabaja sin problemas, lo tengo en mi PC Gamer como Disco duro Esclavo sin Nas solo Como Disco duro Esclavo dentro del Gabinete y sin Problemas, Me compre Este de 20 TB ya que tengo otros dos Uno 12TB y otro de 4 TB y se llenaron con mis Juegos, todos son de la misma marca y Modelo, son Geniales.

I have purchased many Seagate Ironwolf pro hard drives before for my 3 QNAP NAS. They all works perfectly. This 20TB drive is the largest size that I have purchased. Without exception, this 20TB drive was formatted into ExFat format and works perfectly without trouble.

Es un fraude. El disco no funcionó y el vendedor no se hizo responsable.

O produto é perfeito. Chegou em boas condições. Está instalado. Foram feitas várias partições no disco e está funcionando em condições satisfatórias.