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. 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”.

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. The drives themselves are fantastically dull in appearance of course, as one might expect from the enterprise tier and also feature quite an aggressive spin up noise. However, in much larger scale environments, you will almost certainly not hear the drive media over the ambient system fan noise. Overall still an oldie but a goodie!The benefits of an internal SSD drive are the same as the external: They’re fast, they use less power, have no moving parts, and they’re whisper-quiet. The downsides are the same: For those benefits, you’ll be paying a lot more per TB of storage. That said, prices on internal SSDs seem to be more accessible than the external devices, so adding a terabyte or two is more achievable for a little extra effort. 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: Alls I’m a-saying is; we should be more graceful for synology support to their home/office/prosumer market all-the-while still politely reminding/nagging them of our desires/dreads (aka catching more flies with honey whether than vinegar). I hope you will be able and willing to answer my question. I have a DS218+ with 2 8TB seagate iron wolf harddrives. I want to have an upgrade so I’m buying a DS420+ nas and 2 18TB seagate iron wolf harddrives. My plan is to replace my 2bay synology to the new 4bay synology and I want to know if I can just put the 2 8TB drives into the new synology and then also add the 2 new 18TB drive in bay 3 and 4.. Personal use 20tb should be more than suffice. which is probably 4x5tb or 5×4 tb. 450-500 usd probably. All my photos from 2010 is only around 400gb jpg. and since current hdds are 4-5tb or so, yea I can manage to save more copies in more drives.

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. The NAS itself represented the best box I could justify. Being four bay, it also gave me the opportunity to spread my expenses over a longer period. Certainly one of the most expensive NAS HDDs out there, but provides a very good level of storage, performance, durability and overall is a very dependable drive for SMB users (Small/Medium Business) that want a drive they can rely on. You may feel SATA and SAS is mature tech and there should be no compatibility problems, but there are and there will be more. I’ve worked with (from memory) Adaptec, Areca, Raidcore, 3Ware and LSI. Sometimes the compatibility problems are blatantly obvious, but sometimes they are a creeping problem that takes time to develop, and they don’t get better with time. Sometimes a firmware upgrade of the drives or the controller can help, but there’s no guarantee that either is coming if you start out with incompatible hardware.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). Bigger disks means less options for redundancy as you have less individual disks, less theoretical throughput and often higher cost because even though the cost per GB drops the amount of GB’s per disk is significantly higher. I assume the home/office/prosumer market is all-but free-riding on their megala-enterprise/corporate market success. I know my PC HDD will one day fail. However, given a choice between losing a few days of data or paying 24/7 electricity for RAID… I’m prepared to accept the former.

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. Bigger means less power draw, less vibrations and less potential heat, less physical space used and more capacity.

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. BTW, also worth noting, the weight of the NAS might become significantly higher when you are using more drives (noticeable after 8x drives IMHO) SATA – Despite it’s age, SATA still remains the most popular connection of HDDs in 2023/2024 (despite the rise of M.2 NVMe SSD use in NAS). SATA allows up to 6 Gigabits per second throughput. However, mechanical HDDs rarely exceeded 280MB/s. By 2023/2024, while SATA remains prevalent, advancements in connections like SAS, NVMe, and U.2, particularly in SSDs, have become more significant in enterprise settings.