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)

Good drive, good price (when on sale).
I bought a 4TB Seagate Ironwolf drive to replace a WD drive I had that was giving errors in my UNRAID server. I have not bought a Seagate drive in a very long time. There was a period of time when Seagate was great, then a period of time when they were not so great. Anyway, I figured I would give Seagate a try again, especially since their drive was $15 cheaper than the same WD drive at the time. I received my drive and it was well packaged in protective packaging and inside a box. The drive had the same familiar footprint dimensions but was a shorter height which was interesting. Anyway, it didn’t make a difference really. I removed my failing WD drive from the server, and then slotted this seagate drive in. I then started the server and once booted I assigned the drive to the correct slot in the menu and the server immediately began rebuilding the data on the new seagate drive. The drive had zero issues and zero errors on it from testing and rebuilding. It delivers good read/write speeds, but read/write speeds are really dependent upon many factors and what the server is doing at the time and so forth, so no detailed reports on that. The Seagate drive has been running 24/7 on my server for about a month now and not a single issue with it so far. The shorter height is interesting as it lets more air from the front facing fans pass between it and the drive above it, so that is a plus I suppose. If this drive holds up for 6+ months I will probably replace more of my server drives with Seagate drives. I have 2 other server drives coming on replacement time in near while, so I will be purchasing at least a couple more of these as they go on sale from time to time.I will need to compare the longevity of the Seagate drives with the WD drives. I’ve had good luck with WD up until about a year ago. Now, their drives do not seem to be of the quality that they once were. I get a lot of errors on some WD drives sooner than expected. Hopefully these Seagate drives fair better.Anyhow, so far so good.——————————————–UPDATE 15AUG2025——————————————–So, a 4TB WD RED PLUS drive in my server went bad. The drive is 4 month old. It started about a week ago with some Sector Reallocation errors, then more errors over the days… then hundreds of bad sectors. I couldn’t write data to the drive anymore, then the server kicked out the drive and refuses to start it up. I pulled the drive and tested on my PC… yeah, the drive is going bad, and it is going bad fast. I formatted it, put it back in the server (to trick the server into thinking it was a new drive), it rebuilt the data (after about 10 hours or so), and all seemed fine. But, soon after (within hours), it started acting up again. Definitely a bad drive.I can read data from it, but writing to it is challenging as it triggers a cascade of sector errors. Had to call WD today and RMA the drive… now I have to pack it up and ship it at my expense to get a replacement. Honestly, it’s probably not worth it. I do not want another new WD drive in my server. I’ll probably put in on light duty on one of the kids PCs or something instead. WD’s quality has fallen into the toilet, and this new drive I will get from them will probably be another bomb waiting to happen. You know sticking in a new replacement into the server and waiting 10 to 12 hours for the data to rebuild is not particularly fun.WD I am not impressed in the slightest. This is particularly bad since this was a BRAND NEW RED PLUS drive. I not long ago replaced another WD drive with a Seagate. A brand new WD Red Plus….. and sitting next to it is a 5 year old WD Blue purring away happily without complaint… WOW! What happened to WD?!?!?! I have a 7 year old WD Green (they don’t even make them anymore) that still works fine… and a new RED Plus can’t make it past 4 months. Amazing. I even have a WD Blue that is years and years old in my security camera DRV/NVR recording 24/7… never has an issue…WD used to make good product. They are garbage now in my opinion.So, guess what I ordered as a replacement for the RED PLUS? Yep, I ordered a Seagate Ironwolf… even though WD is giving me a replacement (which you have to wait weeks and weeks for), I am paying for another Seagate to replace it with. The Red Plus will never see the inside of my server as I do not need the aggravation.It might be a long long long time before I ever order another WD drive again. Not until they sort out their quality again. My advice is to stay away from WD drives…. it is hit and miss with them. It is like playing Russian roulette with your data.So, we are down to two players left in the HDD world; Seagate and Toshiba. But, for now I am happy with Seagate.——————————————–UPDATE 06OCT2025——————————————–I did finally receive the replacement WD RED Drive. WD sent me a white label drive instead of a RED label drive. It’s basically the same drive but it has a label that looks like some printed on a thermal printer type label that they must issue when doing replacements or something. I didn’t put it in my server. Instead, I have replaced 4 drives in my server with Seagate drives now. I even replaced my parity drive with a Seagate at this point, since it was a WD and started giving SMART warnings as well. So, the UNRAID server is almost entirely Seagate drives now and everything is running happy and smooth.The LSA HBA card has no issues with these drives at all and UNRAID sees them as normal SATA drives (normal as if they were connected to the motherboard directly)… just in case there are any UNRAIDers out there considering a LSA HBA card… I used a 9300 16i that was already in IT mode… zero issue with it with UNRAID… plug and play literally, the drivers come up automatically during boot.Anyway, the Seagate drives have been awesome so far.

LOS MEJORES PARA MI NAS
El mejor disco para mi nas, luego de investigar sobre otras marcas finalmente elegí esta ya que tenia muy buenas calificaciones y comentarios, hasta el día de hoy esta funcionando perfectamente en mi nas UGREEN, tengo espacio de sobra para guardar todos mis archivos,y algo que me gusto mucho es el servicio de recuperación de datos que ofrece la marca de forma gratuita por la compra del disco, es un plus extra, recomendado.

Replacements from Seagate can take forever
I ordered two of these drives (ST12000NT001). They work very well and are very quiet in a be quiet 802. They do not have the 5-second click that I read WD Black drives have.Unfortunately, one of them died (post-return date). I have spent many hours working with Seagate to get a replacement drive. They have kept trying to send me an IronWolf (non-Pro) drive (ST12000VN0008). I received the first drive and was ready to send it back, but they tried to send another non-Pro drive.Apparently, they are out of stock, so their system wants to downgrade my drive. I even mentioned that Amazon has them in stock if they want to buy one for me. :)It is a great drive when it works, but the return system is rather lacking which can play into the decision to purchase future drives. The people I have spoken with via the support bot have been very nice. The down side is that the system wants to give me a lesser model. If you need to return yours, watch carefully on what the replacement is.Report Card (if Amazon allowed split scores):- Drive: A (when it works)- Support staff: A (very polite and helpful but a bit uninformed by Seagate on how to handle odd cases)- Support system: F (Seagate *really* needs to fix its process, so the correct drive is sent in the first place)Update (2024/2/29): Seagate still cannot find a replacement IronWolf Pro drive to send me. I have spent hours on chat with different people. The last two times I contacted Seagate, I have received the “check back in 48 business hours” after being in a chat for more than two hours. The killer is that they have that unit available on their own website for sale. I have given the support people high ratings each time, yet the “Would you recommend Seagate?” question keeps dropping. I am now dropping my rating here from three to two stars.Update (2024/4/1): It continues. Seagate sent me another incorrect drive. I am currently speaking with support. The best they can do is find an NE001 model even though they have the NT001 models in stock at Amazon and Seagate. They say they can only provide Factory Certified and not new drives under warranty. However, they had plenty of time to refurbish the drive I sent them. I know they cannot just send me back the same drive, but I am very frustrated. Knocking the review down to one star. I doubt I will buy another Seagate drive at this point. It is too much hassle.Update (2024/6/19): A bunch more back and forth has happened. I received another incorrect drive. There was confusion on the status of my RMA. Some thought it was finished probably due to how long the information in the ticket was. Finally, I got in touch with a support person that was able to find the right group above her to handle it. They told me, via her, to keep the incorrect drive, and they would send a new drive. Well, it was another refurbished drive, which is what I expected at the beginning of this, yet it was the correct drive. Checking the warranty on the drive showed it to be only a few months, so I had to contact support again to rectify it. At first, they bumped it to three years. He had me check their site to verify it was correct but was quick to fix it to five years. Seagate should make their own drives easier to differentiate if even their own support can be confused. My head hurts. :)At long last, I have the correct replacement drive. It only took 4 months. Ugh!Update (2024/7/5): Three weeks. That is how long the replacement drive lasted before it crashed.Update (2024/7/30): Not as much difficulty this time, although spent hours on it, another replacement drive is on its way.Update (2024/8/5): The replacement drive was DOA. Of course.

No es ruidoso, es rápido y de momento no tengo problema alguno con este disco.Lo tengo para copias de seguridad en una base que se desenchufa tanto de los ordenadores como de la red eléctrica y solo lo conecto a final de mes para la copia de seguridad.Trabaja muy rápido y no me dio ningún fallo de momento.Muy recomendable.

Simplemente amo este disco duro, es de muy buena calidad, la velocidad de carga me encanta, hay superiores de 128mb pero este me parece perfecto por el costo, para mucho es ruidoso, pero lo normal, nada fuera de lo común, la garantía es brutal, recuperan tus datos sin ningún problema en caso de fallos, de uso continuo y constante, con protección de vibración y chip de apoyo en caso de cortes de energía, ojo también el factor de forma no es para todos los gabinetes, hay que notar los espacios de los tornillos, además que es compatible con los Time Capsule de la marca de la manzana.Lo monté en mi NAS synology y jala muy bien, no se calienta, además que aparece con el logo de IronWolf, tiene prestaciones más amplias por el modelo.En definición recomendable por velocidad, espacio y costo-calidad.