We will not share your email with any third party companies. 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. Read our affiliate link policy. 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. 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. We will update our marketing materials, as well as provide more information about SMR technology, including benchmarks and ideal use cases. "Seagate only produces NAS drives that are CMR," Belloni says. Realizing this is a little difficult to track, Western Digital has provided a chart to identify all of their drives with DM-SMR. Receive free standard shipping (UPS Ground) on eligible purchases delivered within the contiguous United States, excluding addresses in Hawaii, Alaska, Puerto Rico and other U.S. territories. We will have options for you. 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. 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. 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. If you ever questioned whether your hard drive uses SMR, then this guide would help you. Again, we know you entrust your data to our products, and we don’t take that lightly. Essentially, SMR comes in three variations – DMSMR, HMSMR and HASMR. 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This post has been updated accordingly with these new details. Western Digital late last week issued a statement in response to the revelation of the company’s undocumented use of SMR (Shingled Magnetic Media recording) in 2TB and 6TB WD Red NAS drives. QLC) and not disclosing it. 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. 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 Resources: SMR: What we learned in our first year One Year Later…Dropbox Continues to Innovate with Western Digital. 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. (adsbygoogle = window.adsbygoogle || []).push({}); Shop year end deals! Sign up or login to join the discussions! Your story on WD using SMR in some drives without mentioning it on the spec sheets was eye opening. As such, host-managed SMR allows for a smooth, staged transition to Host-aware SMR in a future timeframe. All rights reserved. “The past week has been eventful, to say the least. In a traditional RAID1/5 rebuilt the drive is sequentially rebuilt from start to end. 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. All other HDDs in these series use different recording technology called CMR or conventional magnetic recording. Old pool was 4 x WD30EFRX and new pool is 2 x WD30EFRX + 2 x WD60EFAX After some experienced issue around performance, i discover that WD60EFAX use a PMR technlogy as mentioned only on the Synology Products Compatibility List with this recommendation: Due to the characteristics of SMR, this SMR drive … One of those innovations is Shingled Magnetic Recording (SMR) technology. We are here to help.”, 20-04-2020 – Official Statement from Western Digital on this matter. 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. 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. Although Western Digital does not, to the best of our knowledge, have an official policy regarding replacement of Red drives unknowingly purchased with … We reached out to WD and we were furnished with the following reply by Yemi Elegunde, Enterprise & Channel Sales Manager Western Digital UK: Shingled magnetic recording (SMR) is a hard drive technology that efficiently increases areal density and capacity for users managing increasing amounts of data, thus lowering users’ TCO. 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. 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. Join the Ars Orbital Transmission mailing list to get weekly updates delivered to your inbox. Hard drive discs made using SMR technology are less expensive to make than those that use CMR, states the complaint, further noting that Western Digital began using CMR to manufacture hard drive discs and sell them to Canadians in 2012. WD Red capacities 2TB-6TB currently employ device-managed shingled magnetic recording (DMSMR) to maximize areal density and capacity. Realizing this is a little difficult to track, Western Digital has provided a chart to identify all of their drives with DM-SMR. In our testing of WD Red drives, we have not found RAID rebuild issues due to SMR technology. Thank you for letting us know how we can do better. Western Digital has been receiving a storm of bad press—and even lawsuits—concerning their attempt to sneak SMR disk technology into their “Red” line of NAS disks. Here is that list of our client internal HDDs available through the channel:”. Hattis Law has initiated a class action lawsuit against Western Digital, accordingly. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Condé Nast. 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. No one has so far demonstrated 9 days vs 16 hours on a traditional RAID1/5 rebuild. 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. WD Statement: Sorry, your blog cannot share posts by email. 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. 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. “Recently, there has been a discussion regarding the recording technology used in some of our WD Red hard disk drives (HDDs). Post was not sent - check your email addresses! The issue isn’t that we don’t understand SMR or DMSMR. So, what is SMR, Should you be concerned, What does this mean for bigger WD Red Capacities and How is WD responding to this? IMPORTANT – This Article has been updated on 23/04/2020 with Information Provided by an official statement and hardware breakdown from Western Digital, from their official blog. ... saying that it responds to “product replacement requests” on a “case-by-case basis”. Jim Salter. Currently, Western Digital’s WD Red 2TB-6TB drives are device-managed SMR (DMSMR). Host-aware SMR is like a superset of the aforementioned options. You are correct that we do not specify recording technology in our WD Red HDD documentation. 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. © 2021 Condé Nast. 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. Jun 12, 2018 ⁄ HDD, SMR, Ultrastar. There are three types of SMR: - Drive Managed, DM-SMR, which is opaque to the OS. In our testing of WD Red drives, we have not found RAID rebuild issues due to DMSMR technology. 15TB HDD – Taking Big Data Capacity to the Next Level. 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. We can hypothesize that there is a negative impact, but it is better to show it. WD Red 8-14TB drives use conventional magnetic recording (CMR). 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. It turns out that many of these HDDs actually use shingled magnetic recording (SMR) instead of perpendicular (conventional) magnetic recording (PMR/CMR) technology. We regret any misunderstanding and want to take a few minutes to discuss the drives and provide some additional information. If you have purchased a drive, please call our customer care if you are experiencing performance or any other technical issues. April 20, 2020. There are both device-managed and host-managed types, each for different use cases. 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. The 8TB and larger drives with the “EFAX” code use CMR technology. Buffalo launches 40GBASE-T compatible CAT8 LAN cab, TerraMaster F8-422 10Gb high-speed quad-core NAS, PegasusPro Thunderbolt NAS Collaborative Video Edi, New WAX204 Dual Band WiFi 6 AX1800 Wireless Access, Idiots Guide to Editing Video on a NAS Drive (via 10Gbe or Thunderbolt), Synology RS3621xs+, RS362RP1xs and RS4021xs+ NAS Coming Soon, Synology DS1621+ vs QNAP TS-h973AX NAS – Ryzen NAS Comparison, NAS Buyers Guide 2021 – Get It Right First Time, Synology Hybrid RAID Explained – Why it is AWESOME, How to Back up your Mac to Synology NAS with Time Machine, Switching from Google Photos to a Synology or QNAP NAS, Synology NAS PLEX DRIVER FIX for H.256 / HEVC – DS920+, DS220+, DS720+ and DS420+. Maltz on April 30th, 2020 - 12:03am . WD has started listing its existing hard drives with SMR technology in marketing materials, and … Stay connected to Western Digital: 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. alltechienewstoday June 6, 2020 5 min read. However, the background ‘housekeeping’ tasks that the drive must perform result in highly unpredictable performance, unfit for enterprise workloads. DMSMR should not be confused with host-managed SMR (HMSMR), which is designed for data center applications having respective workload requirements and host integration. 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). NEWS 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). 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 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.”. It is often desirable to choose a CMR drive instead. Built for 24/7, always-on, high-definition security systems. To get a better handle on the situation, Ars purchased a Western Digital 4TB Red EFAX model SMR drive and put it … 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. Hattis' position is strengthened by a series of tests that website ServeTheHome released yesterday. 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. 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. We typically specify the designed-for use cases and performance parameters and don’t always talk about what’s under the hood. Enter your email address to subscribe to this blog and receive notifications of new posts by email. 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. In the wake of media coverage from the likes of Ars Technica on the subject, Western Digital … Western Digital’s Unacceptable Silence Western Digital has stayed silent on this issue for months, now. Jim Salter Making Host Managed SMR Work for You – Dropbox’s Successful Journey. WD Red 2TB, 4TB and 6TB NAS Hard Drives Use SMR / DM-SMR. This means ZFS cannot "target" writes, and … The WD Red Pro line remains unchanged with CMR drives. Those interested in all the details may view the full text of Hattis Law's class action lawsuit here. 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. Alternatively, why not try asking NAS Community or join forces yourself. 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 serves as hugely useful for archive and cold storage use and has been popularized in that area for a while. On the surface, this may seem like the best of both worlds. WD Red 8TB-14TB drives are CMR-based. Unless you are using your NAS Drive is an enterprise or heavy-duty capacity, this is not something that is mission-critical in the short term and as long as you have a multi-tiered backup and run checked periodically internally on your RAID array and using the NAS storage tools provided – though you should consider the importance of this in conjunction with the importance of your data! 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. Although all three major manufacturers quietly added SMR disks to their desktop hard drive line-up, Western Digital is the only one so far to slip them into its NAS (Network Attached Storage) stack. There is a way to tell if the hard drive is SMR if you have it on a NAS or have the ability to access a UNIX command console. We work closely with major NAS providers to ensure WD Red HDDs (and SSDs) at all capacities have broad compatibility with host systems. 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). Should users’ use cases exceed intended workloads, we recommend WD Red Pro or Ultrastar data center drives. Having built this reputation, we understand that, at times, our drives may be used in system workloads far exceeding their intended uses. Commercial Internal Drives | Western Digital A full statement is below (from guru3D): “All our WD Red drives are designed meet or exceed the performance requirements and specifications for common small business/home NAS workloads. Recently, the well-known tech enthusiast site Servethehome tested one of the SMR-based 4TB Red disks with ZFS and found it sorely lacking. 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. Simply enter the following command: hdparm -I / dev / sda | grep TRIM. 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. Need Advice on Data Storage from an Expert? The new disclosure comes on the heels of WD's blog post yesterday that outlined its stance on using SMR drives. Where sda is where you … Western Digital works extensively with customers and the NAS vendor and partner communities to continually optimize our technology and products for common uses cases. 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