Testing the WD Red 4TB SMR WD40EFAX Drive. De eerste en laatste zijn er nu ook al, de middelste is nieuw. From a sequential performance perspective, our tests confirm that our WD Red DMSMR drives are on par with our existing CMR drives. In terms of throughput, the Red is only 16.7 percent slower than its non-SMR Ironwolf competition. “The information you shared from [Geizhals] appears to be inaccurate. We will update our marketing materials, as well as provide more information about SMR technology, including benchmarks and ideal use cases. Join the Ars Orbital Transmission mailing list to get weekly updates delivered to your inbox. New WD RED EFAX with SMR are orrible (to evitate). a) WD isn’t clearly marking these as SMR based drives, even if they are “drive managed” meaning the OS doesn’t need to get involved b) this product (WD Reds) is meant for use in RAID arrays where during silvering there is a lot of not-quite-sequential writing going on. Use of and/or registration on any portion of this site constitutes acceptance of our User Agreement (updated 1/1/20) and Privacy Policy and Cookie Statement (updated 1/1/20) and Ars Technica Addendum (effective 8/21/2018). SMR technology is implemented in different ways – drive-managed SMR (DMSMR), on the device itself, as in the case of our lower capacity (2TB – 6TB) WD Red HDDs, and host-managed SMR, which is used in high-capacity data center applications. We are going to start with some general benchmarks to try and place the WD Red (WD40EFAX) performance in a larger context. Voor die laatste fabrikant komt nu een nieuwe stap in de soap, want NAS-fabrikant Synology noemt de WD Red-hdd's nu incompatibel met zijn apparaten. These drives typically have been validated for compatibility on many platforms from NAS manufacturers such as Synology, QNAP, Asustor, Buffalo, Netgear and Thecus. Towards the middle of 2019, WD silently introduced WD Red hard drives (2-6TB capacities) based on drive-managed SMR. We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. - Jun 5, 2020 9:40 pm UTC. From our experience, we see most SOHO users rely on their systems for office file sharing, home backup or content archiving. Due to the fact that the range of use cases for NAS has become increasingly diverse, we are now making it easier for users to match the right drive with their applications and workloads – from moderate small office/home office (SOHO) workloads to intensive small- and medium-business (SMB) use, as well as more demanding environments. We felt it was important to test both ways, since each case is a common use of NAS disks in the real world. WIRED Media Group “Currently, Western Digital’s WD Red 2TB-6TB drives are device-managed SMR (DMSMR). We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. These will be the choice for those whose applications require more write-intensive SMB workloads such as ZFS. All rights reserved. 絶対にWD Redを使うべき? 個人でNASを構築するときに迷うのがHDD選び。「NAS用にはWD Red一択!」とよく聞くけど、これってWD Blueではダメなのでしょうか。そんなNASおすすめのHDD問題をスペック比較で考えてみます。 RAID 1だったら、WD Blueでもいいんじゃないかなって思ったりしない! After random writes to the drive, the drives do need to perform some background garbage collection which does reduce their sustained random write performance. One of those includes use of ZFS, an enterprise-grade file system. It also tells us that for a desktop user, someone who wants things to happen when they click buttons and drag things around, the Red can occasionally provide a truly frustrating experience during what should be a very, very easy workload, even for a conventional drive. We can extrapolate from this peak latency result that when the Red's firmware is floundering badly, its throughput may fall below 1MiB/sec for a little while—and this correlates with the ever-changing throughput numbers we saw as we watched the throughput tests running. Ad Choices. WD Red SMR v. CMR Part I: The Reasonably Similar. To get a better handle on the situation, Ars purchased a Western Digital 4TB Red EFAX model SMR drive and put it to the test ourselves. The disk performed adequately—if underwhelmingly—in generic performance tests. Jim Salter WD has responded through its blog, stating mainly that only certain SKUs of the WD Red were affected. SMR technology is implemented in different ways – drive-managed SMR (DMSMR), on the device itself, as in the case of our lower capacity (2TB – 6TB) WD Red HDDs, and host-managed SMR, which is used in high-capacity data center applications. The DMSMR drives met all of our test requirements, and we’re actively working with system makers like Synology to ensure use cases are validated for customers. WD Red drives manufactured before August 2020 may use CMR or SMR technology and must be identified based on size and product code. marcolopes. Again, we know you entrust your data to our products, and we don’t take that lightly. June 2, 2020, 1:29pm #11. The EFAX Red is 68.8 percent slower on average to return from an operation than the Ironwolf—but again, this is "not winning the race" territory, not "you're going to get sued for fraud" territory. Western Digital published a blog earlier this week that suggests users who are experiencing problems with their WD Red NAS SMR drives may be over-using the devices. Western Digital Technologies, Inc. is the seller of record and licensee in the Americas of SanDisk® products. The unsigned article suggests they should consider more expensive alternatives. Additionally, some of you have recently shared that in certain, more data intensive, continuous read/write use cases, the WD Red HDD-powered NAS systems are not performing as you would expect. This results in extremely low average throughput (compared with the drive’s available throughput) and provides plenty of idle time for the DMSMR drive to perform the necessary background operations, making it an ideal fit for this application. • WD Red Plus is the new name for conventional magnetic recording (CMR)-based NAS drives in the WD Red family, including all capacities from 1TB to 14TB. (Updated) - 04/22/2020 07:05 AM And that's a problem with RAID NAS setups. Availability. The WD Red DM-SMR drives use an indirect Logical Block Addressing model, which is similar to SSDs. HM-SMR - Host Managed Shingled Magnetic Recording. This was our baseline. It started with a photo of the sun rising over NYC. Nu is de pagina echter aangepast en worden WD Red harde schijven met smr expliciet incompatibel genoemd met de NAS-apparaten van het merk. Eind mei ontdekten we dat Western Digital is aangeklaagd omdat het zijn smr-techniek in harde schijven voor onder meer nas-producten gebruikte zonder dit in de productinformatie te zetten.Ars Technica heeft Western Digitals Red-hdd's op de proef gesteld, om te kijken hoe groot de prestatie-impact precies is. However, to my horror it now seems that some (or all) WD Red drives coded "EFAX" have now implemented the dreaded SMR. WD Red SMR vs CMR Tested Avoid Red SMR | Page 2 of 2 | ServeTheHome. We found SMR can put data at risk 13-16x longer than CMR. Western Digital initially denied the secret switch, but after public pressure had no choice but to finally admit what they had done. This is the revision of firmware that came on both of our drives. WD Red, WD Red PLUS en WD Red PRO. WD zondigde in zijn WD Red-portfolio, dat gericht is op NAS-toepassingen en voor een meerprijs verkocht wordt in ruil voor extra betrouwbaarheid. We’re committed to providing the information that can help make an informed buying decision for as many uses as possible. The use of SMR technology in Western Digital Red is not going away—but moving forward, "Red" will exclusively mean SMR disks. While test results can vary from one methodology and test bed to the next, we acknowledge that in some cases DMSMR, for the idle-time reasons covered earlier, can result in slower rebuild times. We’ve rigorously tested this type of use and have been validated by the major NAS providers. Western Digital の WD Red シリーズでSMRとCMRが混在して販売されていることが判明しました。 NAS向けHDD「WD Red」の記録方式をこっそり変更した件についてWDが釈明 – GIGAZINE. WD said it regretted any misunderstanding: “WD Red HDDs are ideal for home and small businesses using NAS […] It also seemed likely that an SMR disk full of data might perform worse than a brand-new one, which wouldn't need to read-modify-write as it dealt with already-used zones. We will have options for you. HM-SMR - Host Managed Shingled Magnetic Recording. Hight noise when they aren’t working (I don’t konw what they do in that time) . At this point, we failed one Ironwolf disk out of the array, did a wipefs -a /dev/sdl1 on it to remove the existing RAID headers, then added it back into the now-degraded array. There’s a leading edge WD Red™ drive for every compatible NAS system to store your precious data. One of those innovations is Shingled Magnetic Recording (SMR) technology. When we drill down a little farther and look at fio's latency numbers, things look noticeably worse. Recently, there has been a discussion regarding the recording technology used in some of our WD Red hard disk drives (HDDs). All of the WD Red drives in all line are available now except the WD Red Plus 2TB, 3TB, 4TB, and 6TB that are expected soon. © 2021 Western Digital Corporation or its affiliates. Voor de consument en de verkoper wordt het wel even opletten, maar met de betere specs moet dat lukken. We continue engaging customers and partners and analyzing real-world data to offer a family of WD Red NAS drives – from HDDs to SSDs – that serve all workloads and applications. WD Red 제품군 이외에 WD Red Pro, WD Blue, WD Black, WD Purple 제품군도 모두 같이 공개가 됐습니다. Read our affiliate link policy. When adding a DM-SMR drive to a ZFS pool, it is better that the drive is erased beforehand. Those all use Linux kernel RAID (mdraid) to manage their arrays. In a RAID rebuild scenario using a typical Synology or QNAP (non-ZFS) platform, WD Red DMSMR drives perform as well as CMR drives or show slightly longer RAID rebuild times, depending on the condition of the drive and extent of rebuild required. While we work with iXsystems on DMSMR solutions for lower-workload ZFS customers, we currently recommend our CMR-based WD Red drives, including WD Red Pro and the forthcoming WD Red Plus. Thank you for letting us know how we can do better. The testing is not yet complete, but at this stage, we can confirm: Some SMR drives are indeed compatible with ZFS, though due to a lack of a ratified industry standard implementation of the technology, they don’t all necessarily behave the same. These will be the choice for those whose applications require more write-intensive SMB workloads such as ZFS. SMR is a technology that can introduce more capacity onto a platter, as well as introduces performance differences, particularly in writes. メーカーはこの事実を公表しないまま製品を販売していました。 It does suck that WD won't tell us one way or the other. The controversy of Western Digital shipping SMR WD Red drives came to light when Alan Brown, a network administrator with the UCL Mullard Space Science Laboratory, noticed that a brand new WD Red HDD kept getting kicked out of RAID arrays during resilvering (rebalancing of data with the addition of a new disk to an existing RAID array). We recommend staying away from any products in the WD Red … If you want a hard drive with CMR technology, you will need to purchase a WD Red … WD Red Pro (2020) vanaf € 87,89. SMR is tested and proven technology that enables us to keep up with the growing volume of data for personal and business use. Western Digital 2TB-6TB WD Red NAS are using SMR, an issue with NAS RAID? Western Digital lässt trotz berechtigter Kritik nicht davon ab, die SMR-Technik in seinen NAS-Festplatten der Serie WD Red einzusetzen. When the WD Red problem first broke, multiple NAS RAID users said they were unable to integrate an SMR drive into a RAID array built with CMR disks due to performance problems and excessive timeouts. We found SMR can put data at risk 13-16x longer than CMR. Red PLUS en … Your real-world insights shared through in-depth reviews, blogs, forums and from our trusted partners are directly contributing to our work on an expansion of models and clarity of choice for customers. The WD40EFAX is the only SMR drive in the comparison and is the focus of the testing. We are here to help. In addition to the WD Red NAS drives that the company previously admitted used SMR tech, WD is also shipping the tech into its 2.5"and 3.5" WD Blue and 2.5" WD Black lineups. Then once it had finished rebuilding, we failed it out again, wipefs -a'd the RAID header from it, and added it back in to rebuild a second time. Perhaps they intend on replacing the 12TB easystores with SMR drives eventually. WD has responded through its blog, stating mainly that only certain SKUs of the WD Red were … Having built this reputation, we understand that, at times, our drives may be used in system workloads far exceeding their intended uses. Even retesting it a second time, when the firmware has a harder job dealing with already-full zones, doesn't change the picture significantly. Its worst case return is a whopping 1.3 seconds, well over ten times worse than the Ironwolf's slowest return of 108 milliseconds. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements, including development challenges or delays, supply chain and logistics issues, changes in markets, demand, global economic conditions and other risks and uncertainties listed in Western Digital Corporation’s most recent quarterly and annual reports filed with the Securities and Exchange Commission, to which your attention is directed. With drives up to 6TB, WD Red™ offers a wide array of storage for customers looking to build a NAS solution. Ik zal jullie op de hoogte houden. We used many red efrx with no problem in the years. Throughput and idle time are key considerations in these types of SOHO workloads. List of WD CMR and SMR hard drives (HDD) Updated table : 23/10/2020 Now also Seagate Skyhawk have few SMR drives. For these, WD’s device-managed SMR (DMSMR) Red is sufficient, it explains. This has rightfully raised questions as to what Western Digital was thinking when it tried to use SMR technology in NAS drives at all, let alone trying to sneak it into the market. You may find 2, 3, 4, and 6TB WD Red models that are either the previous generation CMR models or current generation SMR models. We regret any misunderstanding and want to take a few minutes to discuss the drives and provide some additional information. And we formatted it using the ext4 filesystem, with arguments -E lazy_itable_init=0,lazy_journal_init=0 so that background processes wouldn't contaminate our tests with drive activity that normal users wouldn't usually contend with. WD Red Pro hard drives also have NASware technology and are purpose-built to balance performance and reliability in larger NAS and RAID environments. We typically specify the designed-for use cases and performance parameters and don’t always talk about what’s under the hood. Listed below: ST8000VX002 ST8000VX008 SMR ST6000VX011 ST6000V… Er is een toonaangevende WD RedTM-schijf voor elk compatibel NAS-systeem waarmee je je waardevolle data kunt opslaan. If you have purchased a drive, please call our customer care if you are experiencing performance or any other technical issues. Clearly, the WD Red's firmware was up to the challenge of handling a conventional RAID rebuild, which amounts to an enormous, very large block sequential write test. They are great for sharing and backing up files using one to eight drive bays and for a workload rate of 180 TB a year. Once again, the SMR WD Red performs adequately—it's not winning any speed tests, but it's not falling flat on its face, either. As we mention on our last podcast, several users were frustrated to find that WD Red NAS drives they purchased were SMR when they thought they were CMR. After formatting the new eight disk, 19TiB array, we dumped 14TiB of data onto it in fourteen subdirectories, each containing 1,024 1GiB files filled with pseudo-random data. If you have purchased a WD Red drive, please call our customer care if you are experiencing performance or any other technical issues. WD Red SMR vs CMR Tested Avoid Red SMR | Page 2 of 2 | ServeTheHome. Replacing a single 6TB CMR Red drive with an SMR (before WD's sneaky substitution became common knowledge) in a 6-drive RAID5 more than tripled the time it took my ReadyNAS to perform a scrub and totally locked up everything else while it was happening. We did not experience this failure mode, and … Western Digital 3TB WD Red NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD30EFAX Visit the Western Digital Store 4.3 out of 5 stars 190 ratings Recently, the well-known tech enthusiast site Servethehome tested one of the SMR-based 4TB Red disks with ZFS and found it sorely lacking. ☎ Buy Western Digital WD Red (SMR) WD40EFAX 4TB 3.5" SATA 6Gb/s 5400rpm at the best price » Same / Next Day Delivery WorldWide -- FREE Business Quotes ☎Call for pricing +44 20 8288 8555 sales@span.com Free Advice Its effect on storage is somewhat of a paradox. First, we fed the entire 4TB Red to the degraded array as a replacement for the missing, partitioned Ironwolf. Your California Privacy Rights | Do Not Sell My Personal Information Dus dit kan nog wel even gaan duren. It's only when we look at peak latency from the 1MiB random write test that we begin to see how bad things can get when you push the Red in unplanned-for directions. In de praktijk rapporteerden klanten dat de Red-drives ongeschikt zijn om een RAID-configuratie herop te bouwen omwille van de stiekeme implementatie van SMR. En worden WD Red Plus en WD Red Pro ( 2020 ) vanaf € 87,89 ( ). Volume of data for personal and business use DMSMR ) Red is only 16.7 percent than! Al, de middelste is nieuw parameters and don ’ t working ( I ’! Many uses as possible wolne dyski SMR jako NAS I desktop kernel RAID ( mdraid to., and they have been a leader in their field ever since ZFS and found it sorely.! With our existing CMR drives a little farther and look at fio 's latency numbers, things look noticeably.! Technology and are purpose-built to balance performance and reliability in larger NAS and RAID environments you must login or an! 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