But Western Digital has been the most brazen of the three, and it's been singled out for a class action lawsuit in response. We regret any misunderstanding and want to take a few minutes to discuss the drives and provide some additional information. Enter your email address to subscribe to this blog and receive notifications of new posts by email. You are correct that we do not specify recording technology in our WD Red HDD documentation. WD Red 8-14TB drives use conventional magnetic recording (CMR). In our testing of WD Red drives, we have not found RAID rebuild issues due to DMSMR technology. It turns out that many of these HDDs actually use shingled magnetic recording (SMR) instead of perpendicular (conventional) magnetic recording (PMR/CMR) technology. Western Digital allegedly failed to disclose the usage of SMR technology in its hard drives. Your concerns were heard loud and clear. However, typically SMR drives are not intended for random write IO use cases because the write performance is much slower than with a non SMR drive. In our testing of WD Red drives, we have not found RAID rebuild issues due to SMR technology. Depending on the system architecture, implementing these modifications may seem like an onerous task, yet once developers gain SMR familiarity and optimize their applications for sequential writing, they can take advantage of unsurpassed levels of reliability and quality. The results demonstrate that although Western Digital's new 4TB Red "NAS" disk performed adequately as a desktop drive, it was unfit for purpose in a ZFS storage array (zpool). To get a better handle on the situation, Ars purchased a Western Digital 4TB Red EFAX model SMR drive and put it … As a team, it was important that we listened carefully and understood your feedback about our WD Red NAS drives, specifically how we communicated which recording technologies are used. “We’re committed to providing the information that can help make an informed buying decision for as many uses as possible. iXsystems and Western Digital have been working to identify and resolve the ZFS compatibility issue with the WD Red DM-SMR drives. Let’s take a look at the news. Start Saving Now at Newegg.com, while supplies last. Join the Ars Orbital Transmission mailing list to get weekly updates delivered to your inbox. Western Digital provides data storage solutions, including systems, HDD, Flash SSD, memory and personal data solutions to help customers capture and preserve their most valued data. Western Digital begins mending fences in WD Red NAS drive SMR spat – Blocks... Western Digital has heralded a positive shift in its approach to users of shingled WD Red NAS drives, via a short statement on the company blog. Western Digital, Seagate, and Toshiba have been in the news recently for using SMR technology in drives without advertising them as such. We’ve rigorously tested this type of use and have been validated by the major NAS providers. We will continue listening to and collaborating with the broad customer and partner communities to innovate technologies that enable better experiences with, more efficient management of and faster decisions from data.”. As such, host-managed SMR allows for a smooth, staged transition to Host-aware SMR in a future timeframe. It is often desirable to choose a CMR drive instead. 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. Sign up or login to join the discussions! We can hypothesize that there is a negative impact, but it is better to show it. But it is not recommended to use SMR drives for applications with significant load (for example in NAS boxes or for 24x7 use). A firmware upgrade is not possible, as this is a physical build matter and likewise, simply swapping all the drives over is not an option (if indeed necessary) as these drives are likely being used in RAID groups that require gradual and time occupying individual drive replacement and rebuilding/resilvering. Shingled Magnetic Recording (SMR) technology helps hard drive manufacturers to produce HDDs with larger capacity. Thank you for letting us know how we can do better. CNMN Collection The WD Blue 2.5" HDD series that feature the SMR technology is the 1 TB drive, and the 2 TB drive while from the WD Black 2.5" HDD series only has a single drive that uses the SMR technology, which is the 1 TB drive. Western Digital has seen reports of WD Red use in workloads far exceeding our specs and recommendations. Buffalo launches 40GBASE-T compatible CAT8 LAN cabTerraMaster F8-422 10Gb high-speed quad-core NASDSM 7.0 BETA download AvailablePegasusPro Thunderbolt NAS Collaborative Video EdiNew WAX204 Dual Band WiFi 6 AX1800 Wireless Access. NAS drives are expected to perform well in RAID and other multiple disk arrays, whether ZFS pools or consumer devices like Synology or Netgear NAS appliances. “The past week has been eventful, to say the least. WD Purple 8TB, 10TB, 12TB, 14TB & 18TB drives are designed to support Deep Learning analytics in AI capable NVRs, and feature an enhanced workload rating of up to 360TB/yr In collaboration with major NAS providers, we work to ensure WD Red HDDs (and SSDs) at all capacities are compatible with a broad set of host systems. WD Red HDDs have for many years reliably powered home and small business NAS systems around the world and have been consistently validated by major NAS manufacturers. But now it appears that the WD Red 2TB, 4TB and 6TB Standard class NAS 3.5″ Hard Drives do indeed feature this method of platter utilization inside and it’s upset a few people indeed, but the details are not as black and white as some might think. Read our affiliate link policy. Add question anonymously on Q&A forum. In the wake of media coverage from the likes of Ars Technica on the subject, Western Digital … Ars may earn compensation on sales from links on this site. So, what is SMR, Should you be concerned, What does this mean for bigger WD Red Capacities and How is WD responding to this? Each implementation serves a different use case, ranging from personal computing to some of the largest data centers in the world. The 9 days vs 16 hours comes from ZFS which when it resilvers does so on a block by block basis completely non-sequentially. NEWS "We do not have any SMR drives in our Ironwolf and Ironwolf Pro drives, which are NAS solutions [...] we don't recommend SMR for NAS.". We want to keep the free advice on NASCompares, Finally, for free advice about your setup, j. ust leave a message in the comments below here at NASCompares.com and we will get back to you. Recently, the well-known tech enthusiast site Servethehome tested one of the SMR-based 4TB Red disks with ZFS and found it sorely lacking. Western Digital 1TB WD Blue Mobile Hard Drive - 5400 RPM Class, SATA 6 Gb/s, 128 MB Cache, 2.5" - WD10SPZX Seagate FireCuda 1TB Solid State Hybrid Drive Performance SSHD – 2.5 Inch SATA 6GB/s Flash Accelerated for Gaming PC Laptop - Frustration Free Packaging (ST1000LX015) All three of the surviving conventional hard drive vendors—Toshiba, Western Digital, and Seagate—have gotten caught sneaking disks featuring Shingled Magnetic Recording technology into unexpected places recently. Your story on WD using SMR in some drives without mentioning it on the spec sheets was eye opening. Making Host Managed SMR Work for You – Dropbox’s Successful Journey. alltechienewstoday June 6, 2020 5 min read. The two companies most flagged and castigated by technology watchers, pundits and commentators, Western Digital and Seagate, have begun to respond and clarify which models use SMR, and which (in our opinion) should, therefore, be avoided unless price-per-gigabyte is more of a factor in a purchasing decision than read and write speeds. ServeTheHome. If you ever questioned whether your hard drive uses SMR, then this guide would help you. Western Digital is now sampling the 20TB Ultrastar DC HC650 SMR HDD and the 18TB Ultrastar DC HC550 CMR HDD, with qualification and volume shipments expected in the first half of 2020. This means ZFS cannot "target" writes, and … Host-managed SMR requires host-software modification so that the host system has knowledge of the underlying media and can micro-control all elements by employing a new set of commands. This is getting absurd. The data intensity of typical small business/home NAS workloads is intermittent, leaving sufficient idle time for DMSMR drives to perform background data management tasks as needed and continue an optimal performance experience for users. WD Red 8TB-14TB drives are CMR-based. Western Digital has heralded a positive shift in its approach to users of shingled WD Red NAS drives, via a short statement on the company blog.. As described in our recent article Western Digital admits 2TB-6TB WD Red NAS drives use shingled magnetic recording (SMR), some users can experience performance problems in situations such as adding the drives to RAID groups which use … Jim Salter. Having built this reputation, we understand that, at times, our drives may be used in system workloads far exceeding their intended uses. As Synology explains, “rather than writing each magnetic track without overlapping, SMR overlaps each new track with part of the previously written track, much like shingles on a roof.” The result is slower performance and, as evidenced by recurring complaints on r/DataHoarders, problems with RAID arrays. ... saying that it responds to “product replacement requests” on a “case-by-case basis”. Western Digital, whose WD Red sparked the episode, has now also come out with a chart of which drives use SMR and which ones use the Conventional Magnetic Recording tech or SMR. Enlarge / Although Western Digital's 4TB SMR disk performed adequately in Servethehome's light duty tests, it performed miserably when they used it to replace a disk in a degraded four-disk RAIDz1 vdev. The WD Red Pro line remains unchanged with CMR drives. Visit the NASCompares Deal Finder to find the best place to buy this device in your region, based on Service, Support and Reputation - Just Search for your NAS Drive in the Box Below, Estimated Budget (if you require Prices where available), Storage in GB/TB Required (if you are enquiring about NAS, DAS or SAN), I am sending this data and accepting this Privacy Policy. According to the firm, WD failed to divulge in its marketing collaterals and product specifications that many of its hard drives use the Shingled Magnetic Recording (SMR) technology, which has been found to slow down hard drive performance.. SMR entails overlapping recording tracks on a hard drive in a bid to slash manufacturing costs and ramp up hard drive capacity. SMR - Western Digital Corporate Blog ... Five Hard Drive Technologies Making Big Data Possible. (adsbygoogle = window.adsbygoogle || []).push({}); Shop year end deals! SMR is tested and proven technology that enables us to keep up with the growing volume of data for personal and business use. Hattis' position is strengthened by a series of tests that website ServeTheHome released yesterday. However, the background ‘housekeeping’ tasks that the drive must perform result in highly unpredictable performance, unfit for enterprise workloads. Jun 12, 2018 ⁄ HDD, SMR, Ultrastar. We will have options for you. 15TB HDD – Taking Big Data Capacity to the Next Level. Back in 2016 we performed speed test on Seagate SMR Archive drives and found them to be good as a standalone drive, but unsurprisingly lacked the robust group utility of RAID use overall: Additionally, Right the way back in 2015 (almost right at the start of the SPANtv YouTube Channel history in fact) we discussed the difference between the larger HDDs that were coming to market that used either SMR or Helium Based storage capacity. Currently, Western Digital’s WD Red 2TB-6TB drives are device-managed SMR (DMSMR). Sorry, your blog cannot share posts by email. Here is that list of our client internal HDDs available through the channel:”. DMSMR is designed to manage intelligent data placement within the drive, rather than relying on the host, thus enabling a seamless integration for end users. For a while now, data storage enthusiasts have been wondering why some of their WD Red NAS drives have been failing with their RAID/ZFS arrays and/or exhibiting signs of slower performance. In a traditional RAID1/5 rebuilt the drive is sequentially rebuilt from start to end. However, if predictability and reliability are what you are after, you cannot take any shortcuts in modifying your stack as you would for host-managed SMR. An elaborate investigation and discussion in a Smartmontools thread reveals that both Western Digital and Seagate appear to be shipping HDDs with "DM-SMR" (drive-managed SMR), a feature where the HDD's controller internally performs SMR to increase data density when the physical media is running out of space under CMR (conventional magnetic recording, with conventionally spaced tracks). Essentially, SMR comes in three variations – DMSMR, HMSMR and HASMR. In sharp contrast to Western Digital's position on SMR disks as NAS, Seagate executive Greg Belloni told us that there weren't any SMR disks in the Ironwolf (competitor to Western Digital Red) line-up now and that the technology is not appropriate for that purpose. This means more data can be stored on a shingled disk than an ordinary drive. We work closely with major NAS providers to ensure WD Red HDDs (and SSDs) at all capacities have broad compatibility with host systems. Drive-managed SMR, where the drive manages all write commands from the host, allows a plug-and-play implementation, compatible with any hardware and software. We strive to make the experience for our NAS customers seamless, and recording technology typically does not impact small business/home NAS-based use cases. When asked why has Western Digital excluded a recording type specification in the datasheet specifications, Yemi stated: Most of our customers choose our drives based on specific performance attributes of their use cases, such as transfer and workload rates, and it is our goal to make that information very clear on all of our materials. The fact that WD is stating that these capacities of WD Red (2,4,6TB) use Drive Managed SMR is better than we first thought, it is still off that it is not a factor presented in their datasheets and technical literature. While SMR allows for greater areal density (i.e., higher drive capacity), it’s inherently inferior to PMR/CMR based on the way it writes data. We are continuously innovating to advance it. WD Statement: Your California Privacy Rights | Do Not Sell My Personal Information Help Others! Although Western Digital does not, to the best of our knowledge, have an official policy regarding replacement of Red drives unknowingly purchased with … In contrast to drive-managed SMR, host-managed SMR is an implementation where the host is responsible for everything ranging from managing data streams, to read/write operations and zone management. Post was not sent - check your email addresses! Maltz on April 30th, 2020 - 12:03am . "Seagate only produces NAS drives that are CMR," Belloni says. Ad Choices, with 92 posters participating, including story author, Western Digital adds “Red Plus” branding for non-SMR hard drives, Lawsuit vs. Western Digital wants to end any use of SMR in NAS drives, We put Western Digital’s dreaded SMR Red drive to the test, Western Digital gets sued for sneaking SMR disks into its NAS channel, Seagate says Network Attached Storage and SMR don’t mix. One of those innovations is Shingled Magnetic Recording (SMR) technology. The Original NASCompares News-Post on these WD Red Drives: Over the last few days, a story has been circulating that revolves around WD Red NAS Hard Drives and their potential use of shingled magnetic recording (SMR) and a statement has been shared by the brand highlighting that this is indeed the case, namely, drive managed shingled magnetic recording (DM-SMR). In device-managed SMR HDDs, the drive does its internal data management during idle times. The 8TB and larger drives with the “EFAX” code use CMR technology. All our WD Red drives are designed to meet or exceed the performance requirements and specifications for common and intended small business/home NAS workloads. The data intensity of typical small business/home NAS workloads is intermittent, leaving sufficient idle time for DMSMR drives to perform background data management tasks as needed and continue an optimal performance experience for users. Western Digital reserves the right to change or discontinue this offer at any time without notice. There are both device-managed and host-managed types, each for different use cases. Western Digital, however, was found using the slower tech in its Red NAS drives (2TB-6TB) and soon issued a response on its official blog, an excerpt of … Enlarge / Western Digital's EFAX Red—an SMR disk—squares off against a Seagate Ironwolf in today's testing.Jim Salter Western Digital has been receiving a storm. Now, it turns out this is something that many platforms and solo users online had reached the conclusion of as early as July 2019 and when reaching out to WD, and was met with less than immediate responses. We will update you more and more on how this will pan out, as well as how WD is going to respond to those that have long term concerns about their data moving forward. This post has been updated accordingly with these new details. Looking for a Deal on a NAS Drive? - May 29, 2020 9:40 pm UTC. Need Advice on Data Storage from an Expert? The lawsuit alleges both that the SMR technology in the newer Western Digital Red drives is inappropriate for the marketed purpose of the drives and that Western Digital deliberately "deceived and harm[ed] consumers" in the course of doing so. It isn’t clear whether Western Digital will update its marketing materials to show that its 2 TB – 6 TB Red NAS are SMR drives. It’s that we DO understand it, and that WD has added it to drive models that didn’t have it before, in lines where it is COMPLETELY inappropriate. Tom’s Hardware compares this blip in info sharing to an SSD manufacturer selling a drive with cheaper NAND (e.g. See Below for SKUs to our client internal HDDs using SMR technology. 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WD has started listing its existing hard drives with SMR technology in marketing materials, and … Realizing this is a little difficult to track, Western Digital has provided a chart to identify all of their drives with DM-SMR. Realizing this is a little difficult to track, Western Digital has provided a chart to identify all of their drives with DM-SMR. Toshiba and Seagate confirmed to Blocks & Files that there is undocumented use of SMR technology in some of their drives. You must login or create an account to comment. All rights reserved. iXsystems and Western Digital have been working to identify and resolve the ZFS compatibility issue with the WD Red DM-SMR drives. WD Red 2TB, 4TB and 6TB NAS Hard Drives Use SMR / DM-SMR. 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.”. The issue isn’t that we don’t understand SMR or DMSMR. WD Red drives are designed and tested for an annualized workload rate up to 180TB. We typically specify the designed-for use cases and performance parameters and don’t always talk about what’s under the hood. With a supported workload rate of up to 180 TB/yr1 and support for up to 64 cameras, WD Purple drives are optimized for surveillance systems. Commercial Internal Drives | Western Digital Built for 24/7, always-on, high-definition security systems. The 8TB and larger drives with the “EFAX” code use CMR technology. Host-aware SMR is like a superset of the aforementioned options. ... We put Western Digital’s dreaded SMR Red drive to the test. 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The WD representative’s wording about the suitability of SMR for archival purposes brings up the question of the WD “White” drives that are included in external USB storage offerings. Alternatively, why not try asking NAS Community or join forces yourself. Do use the comments section below or the free advice section here at NASCompares to share your thoughts on this or to get some free advice on what you need for your next storage solution moving forward, to avoid any potential hurdles like SMR on your media. There are key differences between them and this should be considered by the host software requirements and drive performance characteristics that are needed at the end-user level.