WD Red 2TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD20EFRX

Product Information

Before selecting the right NAS hard drive, it’s essential to grasp some key terms in the data storage industry. This knowledge ensures that the drive you choose meets your requirements to the highest standard. Here are some crucial terms you need to know, updated for 2023/2024, to decode the marketing jargon and understand the strengths and weaknesses of each drive: As an Arch Linux user, I was torn between buying an expensive (new) tiny RAID machine with 4 x new HDD’s or using an old (but free) monstrous 12 bay Supermicro server with 12 (free) smaller HDD’s. I’m thinking about getting a DS423+ (home media server) and by doing my research i found this great channel and learned a lot about the NAS world. Magnetic Recording – This refers to how data is stored on the platters. As of 2023/2024, there are several prevalent types: SMR (Shingled Magnetic Recording), PMR/CMR (Perpendicular/Conventional Magnetic Recording), EAMR (Energy Assisted Magnetic Recording), and HAMR (Heat Assisted Magnetic Recording). Each type has its pros and cons, but PMR/CMR remains the most popular for NAS hard drives. I assume the home/office/prosumer market is all-but free-riding on their megala-enterprise/corporate market success.

Unlike the best external hard drive or the best portable SSD, NAS devices offer a unique advantage: internet connectivity. This allows you to access your stored files remotely, ensuring you have the convenience to retrieve data from anywhere in the world. The WD Elements external HDD comes in a variety of sizes from 1TB to 5TB and is an extremely affordable storage solution. It is compatible with PC, Mac, PS4, and Xbox and has both USB 3.0 and 2.0 ports. It measures a diminutive 4.35 inches long and 3.23 inches wide and won't take up much room on your desk, TV stand, or travel bag. IF I “HAVE TO” BUY A BRANDED NAS BOX, I’d spend my money on the biggest NAS with the max # of BAYS possible. Cuz you can always buy cheap smaller drives at first, but if you get a small NAS and used up all your bays from the begining it won’t grow more bays in the future and expanding more capacity means you have to discard your smaller drives, and that is a drive doing nothing loosing it’s value as redundancy. Platters – These are the disks inside the HDD that store data. Higher capacity drives feature more platters. Although compression techniques can increase space, there’s a limit to their effectiveness.Business-wide you should replace your HD’s every 3 years (5 years, max) but for the average user at home, you replace when really needed. (or after 10 years?) This change in policy is significant for users needing specific storage solutions or those accustomed to a broader choice of drives. It contrasts with other NAS brands, which continue to support a variety of third-party drives, including the latest high-capacity models. When choosing a NAS hard drive in 2023/2024, it’s crucial to consider not just the drive’s specifications but also its compatibility with your NAS system. This ensures that you can take full advantage of the NAS’s features and avoid potential compatibility issues. Temperature! A interesting paper published by a storage company probably a decade ago showed that the ideal running temp for HDD’s seems to be between 35 and 45 °C. Higher or lower temperatures showed increased failure rate. But don’t take this as gospel. However we do know that high temperatures are bad in general, and 40°C is a quite easy target for HDD’s. PS: Synology HDD compatibility includes many more/other !NONE Synology HDDs! especially on the newer NAS models

If you are looking to populate a compact, modestly powered, desktop NAS system (so a 1-Bay or 2-Bay NAS drive), then you have quite a large range of Hard Drives on offer. It is worth highlighting though that larger and more enterprise drives (i.e faster and longer warranty) will be noticeably noisier. Additionally, you will need to factor in that your maximum storage is going to be capped at either a single drive OR (in a 2-Bay NAS with RAID 1) your storage halved to maintain redundancy. Finally, you will need to factor in that most 2-Bay NAS devices will either have a smaller external network connection (1/2.5Gbe) or are not really capable of saturating a full connection externally. So, baring these factors in mind, I would recommend the WD Red series of NAS hard drives for small NAS systems. They do not typically have more aggressive hardware internally, so the ambient noise when these drives are running will be remarkably low. The Ultrastar series of hard drives will often be compared against the WD Red Pro range of NAS hard drives when considering populating a server. It is worth remembering that the Ultrastar series is designed for both a higher performance AND a much more enduring performance – i.e it can maintain that level, as well as switch between processes, for much longer. Indeed in testing, the Ultrastar even features a much higher Read and Write performance than pretty much any other drive that peaks as high as 280MB/s in our ATTO DiskBenchmark testing below with just a single HDD. Even the IOs (IOPS_ went as high as 19,000, which although low when compared with modern high-end SSDs, for a single HDD is really impressive).https://www.synology.com/en-us/compatibility?search_by=products&model=DS723%2B&category=hdds_no_ssd_trim Saturation – This term refers to the amount of data flowing through an interface/bandwidth. For instance, a SATA HDD might allow up to 600MB/s, but most NAS HDDs achieve around 180-280MB/s due to their mechanical design. Therefore, the saturation for a single drive is lower, at 180/280MB/s.

Warranty Length – This is the period during which the manufacturer will repair or replace a NAS hard drive if it fails due to manufacturing issues. Warranties typically range from 3 to 5 years. More disks is more power draw, more vibrations more heat production and more physical space used. With the added redundancy comes less capacity as the redundancy means disks are there just to cover the situation where one or potentially more disks fail protecting you from data loss in those cases. I had arguments where someone in the company had a PC from a brand 20 years ago in their old company. In meetings ANYTIME that brand comes up the person that would call tech support for the smallest problem with their work PC, will keep telling you that THEY had a problem with that brand and that they’re basicly an expert now on that brand and that there is no way the company should go with that brand, because THEY CAN TELL YOU how bad their products are. BTW, also worth noting, the weight of the NAS might become significantly higher when you are using more drives (noticeable after 8x drives IMHO)An increasingly important factor when selecting NAS hard drives is their compatibility with specific NAS systems. Over the last 18-24 months, there has been a noticeable trend, especially with Synology, towards reducing the range of compatible, supported, or verified HDDs. Synology has shown a preference for their own HAT3300 and HAT5300 drives, somewhat limiting the choice for users of their systems. This shift marks a departure from the traditionally open approach where most NAS brands, including Synology, supported a wide range of third-party drives. The differences between the Synology HAT3300, HAT5300/HAS5300 are pretty much exactly as you would find if you compared WD Red and Seagate IronWolf versus that of Seagate Exos and WD Ultrastar. Indeed, I am a little surprised that Synology has not introduced a middle ground in the form of a pro series drive, but perhaps this is something that will roll out later down the line. Nevertheless, this results in quite a void of performance, durability, and scale between these two ranges when compared to long-term established server hard drive ranges from these other companies filling the gaps of capacity and pro middle ground choices. It should be immediately highlighted that regardless of which Synology hard drive you opt for, you still benefit from firmware updates being actionable from within the Synology DSM software, easier and more streamlined warranty support, and firmware optimization that is specifically tailored towards Synology hardware deployment. We have discussed this at length previously when discussing the Synology enterprise hard drives and SSDs, and although you pay a premium for Synology’s own branded drives when compared to third-party alternatives that people have been using for decades, there are nonetheless merits in using drives specifically geared towards your NAS system rather than requiring a slightly broader design that suits more diverse servers. Here is how the Synology enterprise SATA, enterprise SAS, and mid-range plus hard drives differ in their specifications:

Second thing you’ll need to do is calculate how many disk you are willing to distribuite those “14TB”, always remember the more the better, cuz you will have more redundancy. As that way there is often a HD-size (and above) that the price per TB is higher than the smaller/previous-size one. (price per TB)So.. can I just take the 2 older 8TB drives (in SHR) out of my 2bay synology and put them together with the 2 18Tb drives into the new 4 bay synology without losing my data or without having to figure out a way to transfer the data off the drives first.. I do not have the external drive space to temporary store 8Tb worth of data. I don’t really care all that much about any settings from my old nas, all I want is to keep all my own data safe when transferring to the new nas. Cache – This memory area on the NAS hard drive compiles and distributes data being processed by the disk. Larger capacity NAS hard drives typically have a larger cache, as do drives using Shingled Magnetic Recording (SMR), which requires more handling space due to its unique writing style. In recent years we have seen Seagate reshuffle their range of available capacities to align the capacities from 1-12TB to arrive in the standard Ironwolf range and Capacities of up to 18TB and 22TB to arrive on the PRO series (likely due to those larger capacity options requiring the more enterprise hardware as standard and making a non-PRO version impossible without purposely nerf’ing the lesser drives intentionally. There is crossover in 4-12TB models in between, however, the distinction in RPM, cache, build design and TBW rating is wide enough to justify this. The noise level of the Ironwolf HDD series in PRO is noticeable higher, but given these are designed for larger arrays, this noise increase will be less noticeable over the ambient noise of the whole system generally. As someone who works in industrial managment and does contracts sometimes I would like to point out that this whole drama is mostly for legal reasons? I understand that they dont add 20TB HDDs on the list if they dont have have their own supported HDDs go up to 20TB. In a company meeting someone might ask “could we go for 20? a simple NO is better than “well we could, but it’s not 100% supported” and then the whole mess would come up… in the end the boss would say “this is to complicated… lets go with another comapny” (welcome to corporate world). In the end it is mainly about certificates that you can hold up and say “this paper says it’s not my fault”.