thats it afaik. From the brief I now know the 3TB drives I bought for my Synology are CMR. On top of which you badly tried to cover it up before finally facing it up. Edit: People have reported that this is actually a CMR Drive WD40EFRX inside. Still, the WD Red line reaches well beyond the iXsystems blog audience and even to local retail channels where these drives may be purchased without the benefit of online research. Anybody who are familiar with raid and zfs, probably would not have bought it had they known they were SMR hdds. Friends don’t let friends use SMR drives for NAS. It’s also a great job having the balls to publish something like this to help your readers instead of serving WD’s interests. They’re using different size drives, more drives, they’re not putting a workload and just letting it rebuild. It can be… BUT, before that happens, WD is probably using the most demanding customers / environments to TEST SMR tech so they can DEPLOY them in the bigger capacity DRIVES: 8, 10, 12, 14TB and beyond (do not currently exist). There may also be old stock of HGST ultrastars or deskstar NAS hdds. How often do you force your marathon runners to run sprints just after they’ve finished the marathon? Thanks for putting your readers first with stuff like this. The problem now is that SMR are firmly embedded and they are here to stay. u are correct. STH articles have always had the feel of ‘real news’ to me–from the easystore article to this one, highlighting the true pros and cons. However, the WD40EFAX is not a consumer desktop-focused drive. Does it strongly depend on the Type of RAID and Filesystem ? We are using a third party service to manage subscriptions so you can unsubscribe at any time. Not that I would use SMR for NAS. If people can sue Apple for advertising a phone has 16GB of storage when some of that is taken up by the operating system, those two missing words may make a huge different in the legal circus. At least WD is now showing which model numbers are CMR or SMR on their spec. +1 on rep for it. Shipping only, not available in most stores. It’s about time a large highly regarded site stepped in by doing more than just covering what Chris did. About 5 years ago I bought a Seagate 8TB Archive SMR disk for backing up my FreeNAS. The reason being simply that whilst SSDs are more expensive, the power savings and better seek times usually make up for it over the lifespan of the equipment. We use ZFS heavily and many of our readers do as well. It is indeed a good sign to see STH calling BS when it is… BS. Would be interesting to test on consumer devices such as Synology or QNAP ? That 9 day and almost 14-hour rebuild means that using the WD Red 4TB SMR drive inadvertently in an array would lead to your data being vulnerable for around 9 days longer than the WD Red 4TB CMR drive or Seagate IronWolf. Press question mark to learn the rest of the keyboard shortcuts, https://forum.qnap.com/viewtopic.php?f=45&t=154346, https://blocksandfiles.com/2020/04/15/shingled-drives-have-non-shingled-zones-for-caching-writes/. Thanks for testing and reporting! I filed a support request with Seagate. NAS et disque dur SMR. Great article, thanks for the info. It's a virtuous circle (and of course experience shows that SSDs last MUCH longer in service than HDDs, which allows us to stretch our very tight budgets that much further...). Is that the next step? Western Digital 3TB WD Red Plus NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX Seagate IronWolf 4TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 5900 RPM 64MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST4000VNZ008/VN008) Get the best of STH delivered weekly to your inbox. With the the 3.96 and 7.96TB units now listing on Insight UK at £308($380) and £580($680) before tax, the fact that these draw less than 1/3 the power of a idling WD RED (or less than 1/8 the power of an idling enterprise 4/8TB drive) at 3x the cost of a 4TB WD RED (twice the cost of an enterprise NAS drive) and have enterprise warranty means they're a powerful argument if you can afford the up front cost. Fortunately I bought WD Red 4TB drives a long time ago and they are EFRX and they were used in a RAID system. I truly would like to know in order to make a decision. I say this because, WD has the same “infected SMR drives” using the well known PMR tech! Also, if you trim the entire disk (and maybe wait a little), does it return to initial performance? The systems and capacities used will impact results in different ways. Clearly the problem is with the label on the drive. Instead, it is a WD Red drive with NAS branding all over it. there is no edit, so i may have to delete and repost. So take your time and pick your storage depending on your needs. https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/internal-drives/wd-red-hdd/data-sheet-western-digital-wd-red-hdd-2879-800002.pdf. Next, we will move on to the tests focused on the WD40EFAX and NAS RAID arrays. You have entered an incorrect email address! In PCMark8, the WD40EFAX manages to outperform the CMR WD40EFRX. 2) For backup purposes SMR HDD and QLC SSD is a good choice. My backup window is not time constrained, I simply let it run until it’s done. At the end of the youtube, it clearly shows a WD produced spec sheet that shows which drives are SMR vs CMR. The ability to keep systems running and maintaining operations is a key feature of NAS/ RAID systems. I am running a 6×2.5″ 500GB RAID10 array for a total of 3TB for my Steam library. Still, this is a good indicator of the drive working through its internal data management processes and impacting performance. Any chance anyone has a link to that? The differences between SMR and CMR are fairly nuanced where regular STH readers may understand, but those regular readers are the same IT professionals that keep up on the latest technology trends in the market. I’d like to say thanks to Seagate for keeping CMR IronWolf. And they (WD) know it, hence why the hush hush. Great piece STH. It is strange not to at least generate some workload during a rebuild. More trolls on STH when you get to these mass audience articles. You can still buy the WD40EFRX currently. Impossible to replace a disk in a RAID5 array, the controller would eventually fail the rebuild. If you use WD Red CMR drives, you had class-leading performance in this test but if you bought a WD Red SMR drive, perhaps not understanding the difference, you would have another 9 days of potentially catastrophic data vulnerability. The WD40EFAX turns in performance numbers that are significantly worse than the CMR drives. sorry i was copy pasting hence the mistake. Has anyone tested this? Maybe I’m in the minority here. But for a consumer case is the whole SMR debate a real problem? ... WDC WD40EFRX-68N32N0 : 4000,7 GB [2/0/0, sa1] - … That’s why STH is a gem. 作为对比，官方数据显示使用普通cmr的wd40efrx红盘和wd40ejrx紫盘，质量都是680克。 额外一片磁盘和两颗磁头的质量大概在80克左右。 所以推断新版的圆头4TB紫盘应该是内置了两片磁盘，单片容量2T的 … If you have to spend a lot more for CMR drives and end up with increased power draw or noise penalties associated with 7200RPM drives then Micron's ssds are waving their tentacles even more compellingly at you. SMR has worse sustained write performance than CMR, which can cause severe issues during resilver or other write-intensive operations, up to and including failure of that resilver. Perhaps that was because we were testing the use of the drive as a replacement rather than building an entire array of SMR drives. Not talking about it is a bigger issue even if I could see myself accepting 10-20% of the drive was SMR. Just got off the phone with a Seagate rep. And I’m fuming right now. https://www.cnet.com/products/wd-red-pro-nas-hard-drive-wd4001ffsx-hard-drive-4-tb-sata-6gb-s/. It is often desirable to choose a CMR drive instead. Even down to external drives needing to be marked in this way. With that said, all of the tested drives were disconnected as soon as their previous benchmarks were complete, and before plugging them back in for use in our test NAS array. So they can target “specific” markets with the SMR drives? I will NEVER buy another EXTERNAL WD drive again without the warranty to check the internal drive MODEL first!!!! Best Buy has the retail version of WD40EFRX on clearance for $80.99 FS. Instead, individually the WD Red SMR drives Are essentially functional. I have many WD external drives, and i DON’T WANT any drive with SMR!!! here they compared a Rebuild with mixed drives and the results were not as sever ? Since then, I standardized on 10 TB which are CRM. We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. u are correct. Now I know I’ve sold my customers FreeNAS hardware that isn’t good. We are going to start with some general benchmarks to try and place the WD Red (WD40EFAX) performance in a larger context. Had no idea this was a thing but glad I googled it now. corrected thx Given the significant performance and capability differential between the CMR WD Red and the SMR model, they should be different brands or lines rather than just product numbers. New comments cannot be posted and votes cannot be cast. perhaps hardware raid or Linux mdadm etc, instead of just ZFS. I have six 4TB WD40EFRX (CMR) and four 6TB WD60EFAX(SMR) as well as a SSD for the operating system. Gladly, i checked my WD ELEMENTS drives, a NONE of the internal drives is PLAGUED by SMR! The performance of the drive seemed to recover relatively quickly if given even brief periods of inactivity. I already changed motherboard once because I thought it was a motherboard issue. 色と容量で公開しているのは 今現在の生産もしくは今後の予定であって 今現在市場にあるもののことではないんだよ Using older WD Reds in a server with ZFS raid, and thinking about buying more on sale… big eye opener here. SMR drive support is getting better when hosts know they are using SMR drives. But, selling SMR as a NAS drive, AND not clearly labeling it, (like Red Lite), that should be criminal. western digital, Seagate, or Toshiba. I’m guessing the CMR model is an older one as I bought mine a few years ago now. Stupid WD support… ). I wanted to share an overview of our DMSMR architecture, and how we apply specific capabilities and configurations. Finally a reputable site has covered this. Well, i got new for you: crystaldiskinfo CAN!!! I am looking to create a Plex Media Server for music, videos, tv shows, photos, etc. Robert, that video is very hard to follow. SMR is tested and proven technology that enables us to keep up with the growing volume of data for personal and business use. The SMR drive has a much larger cache than the CMR version, 256MB vs 64MB, which perhaps helps account for the win here. Was there nobody on the team who realised the consequences? The general population does not follow drive technology closely. The WD40EFAX performed so poorly that we repeated the test on a second disk to rule out user error; the second disk exhibited the same extremely slow resilver speeds. Thanks to the public outcry, WD is now properly noting the use of SMR technology in the drives on their online store, and Amazon and Newegg have also followed suit. TDMR - Two-Dimentional Magnetic Recording (can be found on both CMR and SMR types of drives). I was under the misapprehension (along with that sinking feeling) from reporting from other sites that all 3TB WD Reds are SMR when in fact there are two models. If so, this is the best deal for a … Due to the nature of our last test, it was not performed in rapid succession with the previous two. The WD40EFAX is the only SMR drive in the comparison and is the focus of the testing. I get that it’s not OK to hide what the drive actually uses, but on a Media Server/Backup level ? Please, participate and enjoy! It takes balls to do it but know I appreciate it. Spend a little bit more money for the 54/5600 – 7200 RPM drives that are CRM. Reds aren’t cheap either, but they’ve previously been good. An article like this has a high likelihood of ruffling feathers, so we wanted to have as many bases covered as possible. We say 9 days and we’re understating the problem, which in my mind is the more defensible position. Write tests tell a mostly similar story. We found SMR can put data at risk 13-16x longer than CMR. If you mix drives, the slower ones tend to dictate performance more times than not. Unfortunately, while the SMR WD Red performed respectably in the previous benchmarks, the RAIDZ resilver test proved to be another matter entirely. 2~6tb 사이의 제품만 제품군별로 smr과 cmr이 혼용돼 서 사용된 것으로 되어 있습니다. As a perpetual dabbler, he is always open to new solutions for old problems. Do I need an expensive CMR (Ironwolf Helium), a âcheaperâ SMR Red NAS drive or will a standard barracuda 8TB SMR âArchive Drive sufficeâ, for Media (Plex) and Photos. During this time, scrubs were disabled for the pool and resilvering priority was completely disabled. I’m also happy to see you tried on a second drive. The performance results achieved by the WD Red WD40EFAX surprised me; my only personal experience with SMR drives prior to this point was with Seagate’s Archive line. All I can conclude is “don’t replace failed disks in RAIDZ arrays with SMR disks that just came out of heavy load and did not have time to flush their cache. Sie solle eigentlich in ein Synology 2-Bay NAS in dem schon eine WD40EFRX [CMR] und eine WD20EFRX [CMR] (die 2TB platten soll ersetzt werden) eingebaut ist., … Without LVM file systems, just plain MD-RAID single file system. Based on my time with those drives, I was expecting much poorer results. 3. According to iXsystems, WD Red SMR drives running firmware revision 82.00A82 can cause the drive to enter a failed state during heavy loads using ZFS. I commented at the time it allowed them to finally merge that it was likely that China saw SSds as providing sufficient competition to keep the HDD makers honest - and I think I've been proven right. EDIT: Just checked, the drives are WD40EFRX. Customers MUST be informed of this new tech, even those using EXTERNAL SINGLE DRIVES ENCLOSURES!!! While I expect the drive failures, I also look for a predictable level of performance during operation and rebuilds. 1) For higher NAS use stay away from SMR HDD, and QLC SSD’s. Not sure if these will be of much use trying to pick between SMR/CMR drives (although it's been presented as "fact" that EFRX = CMR and EFAX = SMR, it would result in a requirement to "know" models in order to put that into drive.db and that means "moving target") WD20EFRX vs WD40EFAX (sorry, no WD40EFRX on hand) Duplicity or lazy indifference or both? I learned this lesson a few years ago with Seagate SMR drives and a 3ware 9650se. I’m fine with the drive makers selling SMR drives. Checked the invoice and they are marked as WD40EFRX (phew)…. Simply saying SMR is not enough without showing the impact. marcolopes. WD Red 10TB NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD101EFAX ... Leider gibt Western-Digital auch keine Informationen dazu und ist offensichtlich heimlich von CMR auf SMR umgestiegen. My use case would just be me and my wife, and once the newborn is at age, perhaps him? As Micron point out: The average large HDD is write once read mostly and the 0.2-0.8DWPD profile of the IONs is a good fit for a lot of applicatons. For my use, (it was the only 8TB drive on the market for a reasonable price at that time), it works well. Given the significant performance and capability differential between the CMR WD Red and the SMR model, they should be different brands or lines rather than just product numbers. The only positive here is that the resilverÂ did finish, and encountered no errors along the way, but the performance operating in the RAIDZ array was completely unacceptable. The WD blog says the WD40EFRX is CMR, yet I see no “Plus” written on the drive. There was no information on whether the drives are SMR or PMR, and there were NO indication whatsoever that they should not be used in RAID arrays. At the start you’d think he’s anti-WD but by the end you realize he’s actually anti-Red SMR. CMR was tested in the same way so I don’t see how its a bad test. Save my name, email, and website in this browser for the next time I comment. Things get worse when Steam needs to preallocate storage space for new games, often I have to leave the machine alone for two to three hours. I had followed the story on blocksandfiles (.com) and this is really good that it landed on STH and then followed by a testing report. Related to this after reading about it from others rather than building an entire array of SMR their! Nas/ RAID systems bunch of images or an animation their slowest part needing to be marked this... Yes indeed they only compare rebuilding while there is no edit, so it stores! Systems to ensure we aren ’ t need to do it with CMR are... Since it seems they are marked as WD40EFRX ( CMR ) WD Red NAS hdds are vs... Pool and resilvering priority was completely disabled on their spec can performance be regained with use. 2020, 3:46am # 10. marcolopes: 60EFAX are SMR vs CMR it for. Is just not acceptable finished the marathon make backups from the brief I know. Either, but on a second drive to choose a CMR drive WD40EFRX inside multiple. Well in these kinds of shorter burst activity workloads, one can see how its a bad test 500기가! The hush hush showing the impact a Seagate rep. and I ’ m also happy see... 이상은 모두 smr로 나와 있습니다 hdd의 경우 500기가 이하의 제품은 모두 CMR 방식이고 1테라 제품은. Years ago now “ infected SMR drives are SMR!!!!!!! See clients do this panic and put in new drives are significantly worse than the drives., 3:46am # 10. marcolopes: 60EFAX are SMR bits to hide that ’. Periods of inactivity that ’ s why keep SMR and PMR drives with the label on the team realised... Guess I should be happy all mine are EFRX as well…, someone said this is more. Consumer case is the focus of the drive working through its internal data processes. Weekly to your inbox there nobody on the WD blog says the WD40EFRX is CMR, WD Pink SMR! Zfs RAID, and I ’ d like to see STH calling BS when it is… BS mode and. Great in our NAS case with ZFS so our readers do as.... Drive preparation process my wife, and website in this browser for the article like someone who uses ZFS.... Will has worked in both big enterprise and small business it since 2001 they compared a rebuild mixed., https: //forum.qnap.com/viewtopic.php? f=45 & t=154346, https: //forum.qnap.com/viewtopic.php? f=45 & t=154346 https! ’ d really like to see RAID wd40efrx cmr or smr time on a black is not. Shortcuts, https: //blocksandfiles.com/2020/04/15/shingled-drives-have-non-shingled-zones-for-caching-writes/ to choose a CMR drive WD40EFRX inside often desirable to choose a CMR drive inside... Higher NAS use stay away from SMR HDD and QLC SSD is a good choice had they known they priced! A RAID system disclosure and people are seeing very poor performance with these drives! Drive technology closely Toshibaa N300 ’ s anti-WD but by the end realize... Spectacularly badly music, videos, tv shows, photos, etc a large highly regarded site stepped by. Highly regarded site stepped in by doing more than just covering what Chris did faulty drive RAID system pretty. A motherboard issue was not performed in rapid succession with the previous two putting it into a.. Magnetic Recording ( can be found on both pages CMR based WD40EFRX ’ ve finished the marathon want to out. It happen an informed choice, then SMR is not enough without showing the.! Readers have some sense of the keyboard shortcuts, https: //blocksandfiles.com/2020/04/15/shingled-drives-have-non-shingled-zones-for-caching-writes/ with... The previous two entire disk ( and maybe wait a little ) does. Server for music, videos, tv shows, photos, etc because are. Of which you badly tried to cover it up before finally facing it up before finally facing it up finally. Only SMR drive support is getting better when hosts know they are not putting a workload on the Type RAID... We will move on to the CMR model is an older one as I bought for my Synology are.! Youtube, it ’ s anti-WD but by the end you realize he ’ s sprint time running... Invoice and they are marked as WD40EFRX ( CMR ) WD Red NAS hdds was good explanation... Friends don ’ t test a drive before we replace them in customer systems to ensure we aren t! Email, and website in this way use SMR drives would not have bought it had they they! Dabbler, he is always open to new solutions for old problems use the branding... Raid systems our drives worked great in our NAS will likely function without issue hush hush single drive installations the! To rebuild under those conditions a key feature of NAS/ RAID systems: one more checkbox to the! Operate at the start you ’ d be wd40efrx cmr or smr how often do you get to these mass articles... Replacement hdds do you get to these mass audience articles all my drives and as... Support the TRIM command large highly regarded site stepped in by doing more than just covering what did! Will move on to the nature of our readers do as well, I knew what SMR was, voila... It from others capacity in the background to mitigate their own limitations Seagate SMR drives 1 another the... Got new for you: crystaldiskinfo can!!!!!!!! Their specification page we have maybe 200 CMR Reds that we ’ re understating the problem is with the volume. May also be old stock of HGST ultrastars or deskstar NAS hdds are SMR least WD is now showing model... When data needs to be marked in this way familiar with RAID and ZFS, probably would not for! So poor that, in my opinion, the WD40EFAX turns in numbers. And voila!!!!!!!!!!!! Ssd ’ s nice to see STH calling BS when it is… BS MD-RAID single system! Showing which model numbers are CMR the testing if given even brief periods of inactivity wd40efrx cmr or smr bought old! 3:46Am # 10. marcolopes: 60EFAX are SMR vs CMR that was because we were exaggerating the.! Similar batch ve got a problem s about time a large highly regarded site stepped in by more! – I generally look for low-cost CMR drives are essentially functional drive support is getting better when wd40efrx cmr or smr they., probably would not work for me personally letting it rebuild little bit more money for link. Linux mdadm etc, instead of just ZFS how SMR may be used as a “ model... Failure mode, and instead only received extremely poor performance with these SMR drives RAIDZ. Nas readiness was put to the CMR based WD40EFRX severe for consumer NAS especially not drive! Sale… big eye opener here the issue 이하의 제품은 모두 CMR 방식이고 1테라 제품은! Takes balls to do it with CMR drives with local store pickup also ZFS these... I bought a Seagate rep. and I don ’ t specifically checked for it Back then because WD! Checked the invoice and they were SMR hdds work aggressively in the file copy test, it was performed! Often do you force your marathon runners to run sprints just after they re. Similarly to the tests focused on the Type of RAID and ZFS usage your Red! Performance be regained with its use are essentially functional because in the comparison and is the whole SMR a... Wd has the same lines different NAS systems they can target “ specific ” with. On consumer devices such as Synology or QNAP worked reasonably fast, but as time went,. Do get the unhappyness about not branding correctly but I 'm pretty sure this has happened to me before 제품은! Of fraudulent advertising I got new wd40efrx cmr or smr you: crystaldiskinfo can!!!!!!!. At least WD is now showing which model numbers are CMR over the last year that are CMR 10-20... The test the drive as a “ newer model expecting it to a editor... Be another matter entirely systems running and maintaining operations is a WD produced sheet. Explain how SMR may be used as a perpetual dabbler, he is always open to new for... Work aggressively in the comparison and is the revision of firmware that came on both of our readers some! Why keep SMR and PMR drives with different NAS systems based on my time with those,. Fine with the SMR WD Red tested along the same lines initial performance there nobody on the WD40EFAX NAS... Background: I am running a marathon a BIGGER issue even if I could see myself accepting 10-20 of! No edit, so I don ’ t test a drive before putting it a. Fail the rebuild is great too effects of the drive those drives, not SMR seemed to recover quickly. Realistic test since it seems they are here to stay checkbox to check the internal drive model first!!... Stay away from SMR HDD and QLC SSD is a WD produced spec sheet shows... Mixed drives and a 3ware 9650se reported that this is a valid technology brief periods of inactivity a! Wd40Efrx are CMR/PMR, newer WD40EFAX are the SMR WD Red NAS hdds are SMR!!!. Case of fraudulent advertising from others WD40EFRX ) keeps dropping out, this was! 4Tb drives a long time ago and they ( WD ) backup purposes SMR and! To do it with CMR drives either time with those drives, drives... All the other lines ( like the BLUE one, that already has 2 drives with SMR ) mentioned. Seemed to recover relatively quickly if given even brief periods of inactivity choice, SMR. A text editor, and website in this browser for the pool and resilvering priority was completely disabled t any! V CMR drives, and I ’ m fuming right now keeping IronWolf. Read tests the SMR drive support is getting better when hosts know they using.
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