WD Red 8-14TB drives use conventional magnetic recording (CMR). Maltz on April 30th, 2020 - 12:03am . ... saying that it responds to “product replacement requests” on a “case-by-case basis”. The issue isn’t that we don’t understand SMR or DMSMR. 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 8TB and larger drives with the “EFAX” code use CMR technology. 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. Recently, on a Synology device, to extend SHR storage i bought 2 x WD WD60EFAX. We will not share your email with any third party companies. “We’re committed to providing the information that can help make an informed buying decision for as many uses as possible. Western Digital works extensively with customers and the NAS vendor and partner communities to continually optimize our technology and products for common uses cases. 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, 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 … 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. 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. WD Red HDDs are ideal for home and small businesses using NAS systems. 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. In our testing of WD Red drives, we have not found RAID rebuild issues due to SMR technology. Western Digital, Seagate, and Toshiba have been in the news recently for using SMR technology in drives without advertising them as such. 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.”. First NAS as a Video Professional: for Back-up and File Sharing? 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Stay connected to Western Digital: Should users’ use cases exceed intended workloads, we recommend WD Red Pro or Ultrastar data center drives. Your California Privacy Rights | Do Not Sell My Personal Information In a typical small business/home NAS environment, workloads tend to be bursty in nature, leaving sufficient idle time for garbage collection and other maintenance operations. But Western Digital has been the most brazen of the three, and it's been singled out for a class action lawsuit in response. Simply enter the following command: hdparm -I / dev / sda | grep TRIM. Built for 24/7, always-on, high-definition security systems. 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 … We want to help and that is why we built the NAS Deal Finding Tool to help you choose the best shop for you to buy from – regardless of your budget, skill-set or data needs. 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. 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. 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. "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.". Essentially, SMR comes in three variations – DMSMR, HMSMR and HASMR. 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 … We are here to help.”, 20-04-2020 – Official Statement from Western Digital on this matter. But it is not recommended to use SMR drives for applications with significant load (for example in NAS boxes or for 24x7 use). Jim Salter 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. 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. Commercial Internal Drives | Western Digital All rights reserved. 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. WD Red drives are designed and tested for an annualized workload rate up to 180TB. Shingled Magnetic Recording (SMR) technology helps hard drive manufacturers to produce HDDs with larger capacity. In the wake of media coverage from the likes of Ars Technica on the subject, Western Digital … iXsystems and Western Digital have been working to identify and resolve the ZFS compatibility issue with the WD Red DM-SMR drives. Your story on WD using SMR in some drives without mentioning it on the spec sheets was eye opening. All other HDDs in these series use different recording technology called CMR or conventional magnetic recording. 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. Although Western Digital does not, to the best of our knowledge, have an official policy regarding replacement of Red drives unknowingly purchased with SMR, several readers have shared their individual success stories of getting Western Digital's customer care department to replace such disks with non-SMR disks free of charge. This thread attempts to pull together known SMR drives, and the sources for that information. As such, host-managed SMR allows for a smooth, staged transition to Host-aware SMR in a future timeframe. You must login or create an account to comment. This is getting absurd. We work closely with major NAS providers to ensure WD Red HDDs (and SSDs) at all capacities have broad compatibility with host systems. Where sda is where 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. WD Statement: 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. We regret any misunderstanding and want to take a few minutes to discuss the drives and provide some additional information. 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. This serves as hugely useful for archive and cold storage use and has been popularized in that area for a while. 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. WD Red 2TB, 4TB and 6TB NAS Hard Drives Use SMR / DM-SMR. 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. However, the background ‘housekeeping’ tasks that the drive must perform result in highly unpredictable performance, unfit for enterprise workloads. 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). We’ve rigorously tested this type of use and have been validated by the major NAS providers. Realizing this is a little difficult to track, Western Digital has provided a chart to identify all of their drives with DM-SMR. 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. Toshiba and Seagate confirmed to Blocks & Files that there is undocumented use of SMR technology in some of their drives. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Condé Nast. 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! Having built this reputation, we understand that, at times, our drives may be used in system workloads far exceeding their intended uses. 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. QLC) and not disclosing it. Tom’s Hardware compares this blip in info sharing to an SSD manufacturer selling a drive with cheaper NAND (e.g. Replace Netgear Readynas NV+?First NAS as a Video Professional: for Back-up and File Sharing?What is flash memory used for?Replace Netgear Readynas NV+?Synology transfer speed issues? With all the recent controversy regarding WD, Toshiba, and Seagate slipping SMR drives into retail channels and failing to disclose the use of their slower technology, we thought it would be interesting to dive into the actual impact of using a SMR drive. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Where possible (and where appropriate) please provide as much information about your requirements, as then we can arrange the best answer and solution to your needs. Alternatively, why not try asking NAS Community or join forces yourself. "Seagate only produces NAS drives that are CMR," Belloni says. 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. It is often desirable to choose a CMR drive instead. Western Digital reserves the right to change or discontinue this offer at any time without notice. Therefore they are not recommended for NAS use cases in most industries, as they feature significant random write workloads. CNMN Collection Jun 12, 2018 ⁄ HDD, SMR, Ultrastar. This post has been updated accordingly with these new details. Your concerns were heard loud and clear. 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. Thank you for letting us know how we can do better. 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. 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. Western Digital’s Unacceptable Silence Western Digital has stayed silent on this issue for months, now. Hattis Law has initiated a class action lawsuit against Western Digital, accordingly. 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). 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. WD Red 8TB-14TB drives are CMR-based. We typically specify the designed-for use cases and performance parameters and don’t always talk about what’s under the hood. There are three types of SMR: - Drive Managed, DM-SMR, which is opaque to the OS. As mentioned, Shingled media recording (SMR) HDDs take advantage of disk write tracks being wider than read tracks to partially overlapping write tracks and so enable more tracks to be written to a disk platter. 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