When we first saw these numbers, they sounded reasonable because the workload value isn’t like a TBW number on an SSD, as the 300TB is for each year of operation up to five years. You don't have permission to access "http://www.argos.co.uk/browse/technology/computer-accessories/external-hard-drives/c:30073/" on this server.

hard disk drives, 30TB models are coming way Forget 20TB hard disk drives, 30TB models are coming way

I found a hard drive to be very efficient, and for some reason works faster than my 1 TB of the same maker and brand. It is also quieter than the 1 TB that my system came with. In fact the fan on my DVR makes more noise than a hard drive does and I have a quiet fan. For the customer, the choice is between the biggest drives available, allowing the largest possible arrays, or spreading the workload between less expensive drives with potentially increased levels of redundancy. To remain within this limit and be useful, integrity tests would need to be reduced in frequency, probably to once a month. Versatile Capabilities: Intelligently adapts to the scale of your AI environment, supporting up to 64 HD video streams and 32 AI streams.Should the drive fail after exceeding these workload limits, Seagate can reject warranty replacement accordingly. In terms of operational speed, we found it difficult to separate the IronWolf Pro and EXOS 20TB in our benchmarking. But working the maths a little, taking 300TB and multiplying that by the five years of warranty yields an operational guaranteed limit of 1500TB. Divide that by the capacity, and the total bytes transferred is only 75TB per TB of capacity. Oddly, while idle, the 20TB pulls a little more power than the 18TB, 5.5W from 5.2W, but critically when it is running, it uses less power. Down from 8W on the 18TB to 7.7W on the 20TB, its standby power level is also less.

TechRadar Seagate IronWolf Pro 20TB review | TechRadar

On paper, 20 TB sound like a fantastic innovation. Using just 20 TB drives, you could have 100 TB of available storage space with just six drives in your Unraid server. But Linus, from the Linus Tech Tips YouTube channel, has a compelling argument against increasing the size of hard drives from where they currently are. Max Payne 1 & 2 Remake in the “production readiness stage” while fans will have to wait longer for Control 2 But, based purely on the relatively low 300TB/y workload, we’d consider other options that aren’t specifically for the commercial and enterprise NAS sectors.Seagate has tuned the EXOS for data centre use, where high-capacity RAID arrays are used for big data applications, distributed file systems and disaster recovery platforms. There is one aspect to the IronWolf Pro 20TB that concerns us, and it’s the 300TB per year workload definition. However, if you didn’t read that review, we should mention that, unlike SSDs, the workload figure of a physical hard drive is calculated based on both reading and writing, and not just writing. As hard drive capacity increases, but speeds stay the same, duplicating a single hard drive will become an ever longer lasting process. You could duplicate two 10 TB simultaneously in half the time it takes to do the same with a 20 TB drive. One commenter makes the analogy to a city’s water supply: Picture a city with a massive tower, but only garden hose to get it out. The argument for the use of 20 TB drives In spite of my word in this article, I laud the introduction of 20 TB hard drives. I remember building my first desktop with an 80 GB and 60 GB drive, on which I stored 720 × 576 or lesser rips of the typical teenage favourites. We are entering an age, where a single drive could store all the data you ever produce without compromise. But that is also where the risks lie.

Seagate Exos X20 20TB SATA HDD SATA 6Gb/s 7200 RPM

The UltraStar DC HC560 is the only direct competitor for the EXOS 20TB, as Toshiba hasn’t released a 20TB drive yet.

The veracity of massive capacity

This is all music to the ears of those that service and maintain data centre arrays since the possibility of drives failing and sending the array critical aren’t scenarios that they like. That converts into a warranty that lasts for five years with a TBW of 2,750TB, compared with the 1,500TBW of the IronWolf Pro. I would never use 20 TB drives to store my photography, videography, or any work-related files for the reasons listed above. If one of those hard drives was to fail, and I had all my work on it, I would have to wait two days or more, just to be able to find out if everything still was there. Were there two 10 TB hard drives instead of a single 20 TB hard drive and one of them would die, there would be a 50% chance that the file I was looking was still accessible. And if it wasn’t, rebuilding the dead hard drive would only take a day. If you want 20TB drives in an array, then this is what to expect. Western Digital UltraStar DC HC560 has the same workload numbers, so the alternatives come with the same caveat. The complete reading of the drive for an integrity test once a week would use up 1,040TB per year, nearly twice the yearly limit, and that’s without any operational use.

Seagate will soon offer 20 TB HDDs suitable for Unraid Seagate will soon offer 20 TB HDDs suitable for Unraid

Seagate brought its 20TB products to market alongside Western Digital, eliminating any special bragging rights on this scale of drive.

An Enterprise-class 20TB NAS drive

Higher Reliability: Enterprise-class, with 2M hours MTBF and a 550TB/year workload rate for more than 3× that of standard surveillance HDDs. It comes in a trayless design that offers a simple way of HDD installation. Just pull out the lever to insert or withdraw the HDDs. Once you set up the device, you can easily switch between RAID modes, connect the cable, and turn on the power to enjoy the massive capability and outstanding performance of the Mobius. LaCie is a company popular for it’s Thunderbolt storage. No other company has offered as many different models with this technology. The LaCie 5Big comes with a traditional pedestal form factor that can fit nicely under a desk. This hard drive uses Marvell hardware RAID technology, and you can align the disks in RAID 0, 1, 5, 6, 10 arrays or go for a simple JBOD configuration. Moreover, users can also configure more than one array in the system. Evidently, both Seagate and Western Digital did the calculations and came to the same conclusion about these devices and how much use they are likely to handle before they need replacing. That’s a worse workload than the cheapest unbranded SSD available. But it is even less impressive when you realise that Seagate defines the workload as “Annualized Workload Rate = (Lifetime Writes + Lifetime Reads) * (8760 / Lifetime Power On Hours)”