wd40efrx cmr or smr

Since my source had 4 x 4TB WD Red CMRs, using a single 8TB drive for backups was perfect. They were apologetic, but then they dropped the bombshell: All Seagate 2.5″ drives are SMR, they no longer make 2.5″ PMR drives. We say 9 days and we’re understating the problem, which in my mind is the more defensible position. Edit: Back in stock with local store pickup also. Learn how your comment data is processed. *update. Finally a reputable site has covered this. and what replacement hdds do you get if replaced under warranty (especially since HGST got bought by WD)? Best Buy has the retail version of WD40EFRX on clearance for $80.99 FS. Now I know I’ve sold my customers FreeNAS hardware that isn’t good. But for a consumer case is the whole SMR debate a real problem? 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. Please correct. It's primarily a Plex server in my case. The performance of the drive seemed to recover relatively quickly if given even brief periods of inactivity. I wonder to what extent can performance be regained with its use. 2.5인치 hdd의 경우 500기가 이하의 제품은 모두 cmr 방식이고 1테라 레드 제품은 cmr이지만 블루와 블랙 제품은 1테라 이상은 모두 smr로 나와 있습니다. You don’t test a drive before putting it into a rebuild scenario? It seems like a marketing TEST!!! Not talking about it is a bigger issue even if I could see myself accepting 10-20% of the drive was SMR. ☎ Buy Western Digital WD Red Plus (CMR) WD40EFRX 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 Just a reminder, this test was performed as immediately as possible after completing the drive preparation process. I didn’t specifically checked for it back then because, you know, N300 series. This site uses Akismet to reduce spam. 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) WD Red 4TB WD40EFRX (CMR) WD Red 4TB WD40EFAX (SMR) WD40EFAX. Any chance anyone has a link to that? I think you should explain how SMR works with a bunch of images or an animation. I have a problem with your RAIDZ test: normally I replace failed disks with brand new, just unpacked ones, not the ones that were used to write a lot of data and immediately disconnected. But, selling SMR as a NAS drive, AND not clearly labeling it, (like Red Lite), that should be criminal. Also, if you trim the entire disk (and maybe wait a little), does it return to initial performance? The WD40EFAX is demonstrably a worse drive than the CMR based WD40EFRX, and assuming that you have a choice in your purchase the CMR drive is the superior product. You didn’t address this but now I’ve got a problem. Stupid WD support… ). Yes, there is an array running here, due to the brilliance of picking drives from different production runs and vendors, that has half SMR and half CMR. Paste it to a text editor, and voila!!! I get that it’s not OK to hide what the drive actually uses, but on a Media Server/Backup level ? u are correct. How often do you force your marathon runners to run sprints just after they’ve finished the marathon? ), will they be covered under warranty? They wrote the article like someone who uses ZFS though. there is no edit, so i may have to delete and repost. I thought it was good in explanation, but it’s odd. Do I need an expensive CMR (Ironwolf Helium), a “cheaper” SMR Red NAS drive or will a standard barracuda 8TB SMR “Archive Drive suffice”, for Media (Plex) and Photos. I have many WD external drives, and i DON’T WANT any drive with SMR!!! Knowning this, the question I have is, what drives should we be using in our NAS? Shucking external drives (which are often SMR) is mentioned on both pages. The RAIDZ results were so poor that, in my mind, they overshadow the otherwise decent performance of the drive. Friends don’t let friends use SMR drives for NAS. Clearly the problem is with the label on the drive. The drives are Seagate Barracuda ST500LM050 drives from the same or similar batch. Save my name, email, and website in this browser for the next time I comment. Thanks for putting your readers first with stuff like this. So long as there is proper disclosure and people are making an informed choice, then SMR is a valid technology. They are using smaller capacity drives with different NAS systems. 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. 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). List of WD CMR and SMR hard drives (HDD) Updated table : 23/10/2020 Now … 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. Replacing with 1 SMR disk. The only positive here is that the resilver did finish, and encountered no errors along the way, but the performance operating in the RAIDZ array was completely unacceptable. Dear Western Digital, I will probably continue to buy WD Red in the future, but I just voted with my $$$ following that story. You can still buy the WD40EFRX currently. https://arstechnica.com/gadgets/2020/05/western-digital-gets-sued-for-sneaking-smr-disks-into-its-nas-channel/, Form to join the class: QNAP focused community, to share news, hints and discussion about QNAP products and QTS usage. Please, participate and enjoy! Luke, Testing the WD Red 4TB SMR WD40EFAX Drive. We are using a third party service to manage subscriptions so you can unsubscribe at any time. Spend a little bit more money for the 54/5600 – 7200 RPM drives that are CRM. And upon further investigation I found out that these disks are SMR. In the Video Patrick says 9 days. would be interesting to see RAID rebuild time on a more conventional RAID setup. Haven't had any major issues but I'm pretty sure this has happened to me before. Having rolled out DM-SMR at 98% of the the price of CMR, WD/SG/Tosh are not going to wave a magic wand and say "oops sorry, we furfued this, here's your CMR drives back at the same price". P.S. Still, this is a good indicator of the drive working through its internal data management processes and impacting performance. So they can target “specific” markets with the SMR drives? From the brief I now know the 3TB drives I bought for my Synology are CMR. But you are not showing how long does it take for an array to rebuild under those conditions? And this is VERY BAD NEWS. SMR/CMR: CMR: CMR: 3.5" 8TB and above: CMR: CMR--CMR: Nonetheless, it has now followed up with a complete list of SMR models that should certainly help alleviate concerns and make it … You have entered an incorrect email address! AFAIK, the SMR Reds support the TRIM command. Something we noticed is that the test that immediately followed the file copy test was a sequential CrystalDiskMark workload: As you can see, with a heavy write workload immediately preceding the CDM test, the SMR drive was notably slower. Either is bad. (2) WDC WD40EFRX-68N32N0 : 4000,7 GB [2/0/0, sa1] – wd Simply saying SMR is not enough without showing the impact. If we’d said 10 days, someone could come along and say we were exaggerating the issue. I am looking to create a Plex Media Server for music, videos, tv shows, photos, etc. Would be very unhappy if I had gotten SMR drives though. The WD40EFAX turns in performance numbers that are significantly worse than the CMR drives. https://www.hattislaw.com/cases/investigations/western-digital-lawsuit-for-shipping-slower-smr-hard-drives-including-wd-red-nas/, I just ordered 3 WD 4TB Red for a new NAS and had no clue! Thank you for the article and thank you in particular Will for the link to the WD Product brief. Why is that? More on this topic here https://forum.qnap.com/viewtopic.php?f=45&t=154346, And detailed info on why SMR sucks https://blocksandfiles.com/2020/04/15/shingled-drives-have-non-shingled-zones-for-caching-writes/, this only affects WD##EFAX models; (EFRX are unaffected). And for SSD be aware that SSD QLC SSD drives will fall back to about 80MBps transfer rate as soon as you fill the small cache that it has built in. Ontop of that, when enquiring WD, they refuse to clarify whether they are PMR or SMR. Device-Managed Shingled Magnetic Recording (DMSMR) technology is different from Conventional Magnetic Recording (CMR), and can be implemented in various ways. Taking into account that you regularly make backups from the backups. Without LVM file systems, just plain MD-RAID single file system. In online product catalogs keeping the same branding means that it shows as a “newer model” at many retailers. It’s nice to see the Will cameo in a video too. Thank you to Will for doing this testing and Patrick for making it happen. I have 4 4tb WD reds in my Qnap tvs-471. My use case would just be me and my wife, and once the newborn is at age, perhaps him? Even with a cache flush they’re hitting steady state because of the rebuild. WD Red = CMR, WD Pink = SMR. And they (WD) know it, hence why the hush hush. Someone said this is part of a RACE for BIGGER capacities. 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. They work aggressively in the background to mitigate their own limitations. So, if anyone needs to know WHAT INTERNAL DRIVE MODEL they have in their WD EXTERNAL ENCLOSURES, install https://crystalmark.info/en/software/crystaldiskinfo and COPY PAST the info to the clipboard! sorry i was copy pasting hence the mistake. Fortunately I bought WD Red 4TB drives a long time ago and they are EFRX and they were used in a RAID system. There may also be old stock of HGST ultrastars or deskstar NAS hdds. If you are reading this piece, and know someone who uses, or may use WD Red drives in NAS arrays but may not keep track of trends, send them this article, a chart from it, or the video. So glad I got 12TB Toshibaa N300’s last year that are CMR. New comments cannot be posted and votes cannot be cast. 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. During this time, scrubs were disabled for the pool and resilvering priority was completely disabled. I second the motion to re-test with Linux MD-RAID. ☎ 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 Next, we will move on to the tests focused on the WD40EFAX and NAS RAID arrays. 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. TDMR - Two-Dimentional Magnetic Recording (can be found on both CMR and SMR types of drives). How about that? We are going to curate a selection of the best posts from STH each week and deliver them directly to you. How BIG is it? Shipping only, not available in most stores. ウエスタンデジタルのプレスリリース(2019年12月24日 11時20分)ウエスタンデジタル、世界初の20tb smrと18tb cmr hddのサンプル出荷を開始 They’re using the technical block size and command bits to hide that they’ve done a less thorough experiment. Just read this bollocks: https://arstechnica.com/gadgets/2020/06/western-digitals-smr-disks-arent-great-but-theyre-not-garbage/2/. Note that currently, the MAX capacity drive using SMR is the 6TB WD60EFAX, with 3 platters / 6 heads… So… is that it?? The potential for confusion is still high though. But the question for me (as somebody who is about to buy a new NAS as a media hub for Videos and Photos) I still have two old st4000dm005 lying around and would use them and upgrade two additional a cheap 8TB (SMR – st8000dm004) or with the whole SMR NAS drive debate, a very expensive CMR Ironwolf or something like that ? I passed this article around our office. here they compared a Rebuild with mixed drives and the results were not as sever ? Has anyone tested this? (EDIT -> COPY or CTRL-C). Many will simply purchase the newer model expecting it to be better as previous generations have been. For up to 24 bay medium to large-scale NAS environments, the WD Red Pro drive is engineered to handle increased business workloads and carries a 5-year limited warranty. Is this CMR technology or SMR technology? Unfortunately, while the SMR WD Red performed respectably in the previous benchmarks, the RAIDZ resilver test proved to be another matter entirely. or Toshiba N300 would be the next alternatives? Is WD USING RAID / more demanding users as “guinea pigs” to test SMR and then move on and use SMR on +14TB drives (that currently use HELIUM inside to bypass the theoretical limitation of 6 platters / 12 heads)??? I will NEVER buy another EXTERNAL WD drive again without the warranty to check the internal drive MODEL first!!!! Will has worked in both big enterprise and small business IT since 2001. corrected thx Write tests tell a mostly similar story. Maybe I’m in the minority here. 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., … Anybody who are familiar with raid and zfs, probably would not have bought it had they known they were SMR hdds. In my opinion, the SMR Reds are a case of fraudulent advertising. WTF is that??? Such a shame, I was happy with putting red drives into client Nas now I will be putting ironwolf, what were Western digital thinking? Thanks, Will. Had no idea this was a thing but glad I googled it now. Get the best of STH delivered weekly to your inbox. The SMR drive has a much larger cache than the CMR version, 256MB vs 64MB, which perhaps helps account for the win here. Would be interesting to test on consumer devices such as Synology or QNAP ? CMR was tested in the same way so I don’t see how its a bad test. That is not a recipe for success. Duplicity or lazy indifference or both? There are other NAS vendors who are staying silent on this issue, even if they utilize ZFS and these WD Red SMR drives. red 4tbでもcmrとsmrが混在してるんだから 型番とキャッシュと発売年月日で判断するしかないよ. there is no edit, so i may have to delete and repost. We do want to point out that we likely want to see a more rigorous drive certification process at iXsystems, but also that they at least have done a good job communicating it on their blog. I needed 3 x 10TB drives, I went with barely used open-box HSGT He10 on eBay (all 2019 models with around 1,000 hours usage). In read tests the SMR drive performs fairly similarly to the CMR based WD40EFRX. ... WDC WD40EFRX-68N32N0 : 4000,7 GB [2/0/0, sa1] - … For single drive installations, the WD40EFAX will likely function without issue. We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. Sometimes they put in blues or whatever because that’s all they can get. smrでないなんて儚い希望は捨てたほうがいい. 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. marcolopes. 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/. Period! They are also not doing a realistic test since it seems they are not putting a workload on the NAS during rebuilds? CDN$141.64. If your drive is not found in this guide, please send me pictures from both, the label and the PCB sides of the HDD (or full model and serial number if you cannot take the pictures) and I'll … Checked the invoice and they are marked as WD40EFRX (phew)…. 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) Perhaps that was because we were testing the use of the drive as a replacement rather than building an entire array of SMR drives. IIRC the seagate SMR was something like 80GB SMR, 20GB CMR, 80GB SMR, 20GB CMR and that was still too much for normal multi-tasking use of the drive. 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. 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. I truly would like to know in order to make a decision. (BTW, if you ask WD how to know the DRIVE MODEL inside an external WD enclosure, they will tell you it’s impossible!!! I received a phone call from the rep this morning. Customers MUST be informed of this new tech, even those using EXTERNAL SINGLE DRIVES ENCLOSURES!!! JimDeLaHunt June 1, 2020, 3:46am #10. marcolopes: 60EFAX are SMR! Granted, this is a good article that demonstrates what happens when SMR cache is filled and disks don’t have enough idle time to recover, but I doubt this happens a lot in the real life, and your advice to avoid SMR does not follow from the data you’re obtained. We have maybe 200 CMR Reds that we’ve bought over the last year. Instead, individually the WD Red SMR drives Are essentially functional. HGST fyi got bought out by Western Digital. The drive does say WD40EFRX, but says “WD RED” rather than “WD RED PLUS” as advertised. Using older WD Reds in a server with ZFS raid, and thinking about buying more on sale… big eye opener here. I’d like to say thanks to Seagate for keeping CMR IronWolf. Ektich we load test every drive before we replace them in customer systems to ensure we aren’t using a faulty drive. Right now SG's Ironwolfs are the same price as the WD REDs and CMR (I just bought 3 to replace the 3 borked WD40EFAXes that started this whole adventure) but they're 7200rpm and draw twice the power of the REDs, as do RED PROs (which are 70% more than REDs). Their insight into the drive being used while doing the rebuild is great too. It is strange not to at least generate some workload during a rebuild. 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. We are going to start with some general benchmarks to try and place the WD Red (WD40EFAX) performance in a larger context. The WD40EFAX is demonstrably a worse drive than the CMR based WD40EFRX, and assuming that you have a choice in your purchase the CMR drive is the superior product. Great article, thanks for the info. Your video and web are usually much closer to 1 another. You’d be surprised how often we see clients do this panic and put in new drives. hey thanks for the quick reply! That’s for sure! At the end of the youtube, it clearly shows a WD produced spec sheet that shows which drives are SMR vs CMR. Still, it is a good step. Great piece STH. Gladly, i checked my WD ELEMENTS drives, a NONE of the internal drives is PLAGUED by SMR! I know I’m being a d!ck here but the video has a much more thorough impact assessment while this is more showing the testing behind what’s being said in the video. Not that I would use SMR for NAS. I’m fine with the drive makers selling SMR drives. They’re using different size drives, more drives, they’re not putting a workload and just letting it rebuild. I’d really like to go through all my drives and explicitly verify which ones are SMR vs CMR. The problem now is that SMR are firmly embedded and they are here to stay. This is the revision of firmware that came on both of our drives. Very interesting, very disconcerting. That said, his personal IT motto has to be "if it's not broke, don't fix it" so sometimes the old ways are best. First up is the file copy test. u are correct. People are seeing very poor performance with these SMR drives and Synology as well, even in normal operation. Thank you for your time (1) WDC WD20EARX-00PASB0 : 2000,3 GB [1/0/0, sa1] – wd To be crystal clear, I knew what SMR was, and that the drive used it. 3. 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. I saw that Ars piece. 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. We found SMR can put data at risk 13-16x longer than CMR. Older WD40EFRX are CMR/PMR, newer WD40EFAX are the SMR drives. When that NAS readiness was put to the test the drive performed spectacularly badly. They were priced like new WD Red 10TB 😉. About 5 years ago I bought a Seagate 8TB Archive SMR disk for backing up my FreeNAS. We found SMR can put data at risk 13-16x longer than CMR. Because in the case of WD40EFAX, they totally left that out of mention and refused to clarify, which is pretty scummy. At the start you’d think he’s anti-WD but by the end you realize he’s actually anti-Red SMR. Impossible to replace a disk in a RAID5 array, the controller would eventually fail the rebuild. My backup window is not time constrained, I simply let it run until it’s done. This whole thing really does look like cartel behaviour to me - something the Chinese market regulator was explicitly worried about with the mergers going on the late 00s/early 10s' and why it forced HGST/WD to run as separate entities for more than a decade after acquisition. Instead, it is a WD Red drive with NAS branding all over it. For my use, (it was the only 8TB drive on the market for a reasonable price at that time), it works well. So take your time and pick your storage depending on your needs. So they go way into the weeds of commands (that the average QNAP, Synology, Dobo user has no clue about) then say it’s fine… oh but for ZFS its still sucks. One could argue that you may not transfer 125GB files every day, but that is less data than the video production folder for this article’s companion video we linked at the start. If so, this is the best deal for a … I already changed motherboard once because I thought it was a motherboard issue. As an individual drive, the WD40EFAX is performing pretty well in these benchmarks. NAS et disque dur SMR. In PCMark8, the WD40EFAX manages to outperform the CMR WD40EFRX. You can still buy the WD40EFRX currently. While it’s running well enough at the moment, does anyone know if a scrub is likely to cause a problems with SMR drives? EDIT: Just checked, the drives are WD40EFRX. In other words, not only do they have rotten performance that can be expected of SMR drives, they'll actively throw themselves under a bus from time to time - and virtually every time when attempting to rebuild a RAID onto one of these drives, no matter what you try to stop them doing it (hint: Whilst you _can_ make them resilver by playing with drive internal settings, you really don't want to force this to happen. We use ZFS heavily and many of our readers do as well. 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. I generally tell people RAID arrays tend to operate at the speed of their slowest part. Due to the nature of our last test, it was not performed in rapid succession with the previous two. If you round to nearest day it’s 10 days not 9. And after that, plague all the other lines (like the BLUE one, that already has 2 drives with SMR). Guess I should be happy all mine are EFRX as well…, Someone said this is part of a RACE for BIGGER capacities. 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. I’m guessing the CMR model is an older one as I bought mine a few years ago now. for my house. However, the WD40EFAX is not a consumer desktop-focused drive. 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 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 … ... WDC WD40EFRX-68N32N0 : 4000,7 GB [2/0/0, sa1] - wd sorry i was copy pasting hence the mistake. Also if you bought these old stock models (probably considered EOL? On the WD Red drives, the 64MB cache CMR drives are still available and worked great in our testing. Reds aren’t cheap either, but they’ve previously been good. Western Digital, Seagate et Toshiba (pour ne citer qu’eux) proposent une large gamme de disques durs et ils utilisent tous les technologies SMR et PMR (également appelé CMR pour Classic Magnetic Recording).Malheureusement pour nous, aucun d’entre eux n’indique clairement quelle technologie ils utilisent dans les disques durs orientés NAS… mais les choses … You will regret it later if you care about your RAIDset and the drive speed will drop to less than 5MB/second maximum in the process). I had such a great week too. 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. In the case of the WD40EFAX (and presumably other WDx0EFAX SMR drives), there is a _FIRMWARE BUG_ on top of the SMR slowness which is causing the drives to throw Sector ID Not found errors internally (You'll see this with smartctl -x or equivalent, smartctl -a won't work) and generate a bus error towards the host computer. I’m also happy to see you tried on a second drive. Well, i got new for you: crystaldiskinfo CAN!!! SMR drive support is getting better when hosts know they are using SMR drives. thats it afaik. Since then, I standardized on 10 TB which are CRM. I filed a support request with Seagate. 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...). What makes this worse is, there is no mention that these WD RED NAS hdds are SMR in their specification page. Based on my time with those drives, I was expecting much poorer results. I think this is the link you are looking for: https://documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/internal-drives/wd-red-hdd/product-brief-western-digital-wd-red-hdd.pdf. We also tested the SMR drives before and after the CMR drives to ensure that it was not a case of something happening due to the order of testing. I am running a 6×2.5″ 500GB RAID10 array for a total of 3TB for my Steam library. Was there nobody on the team who realised the consequences? That’s terrible practice. We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. Even down to external drives needing to be marked in this way. https://www.youtube.com/watch?v=sjzoSwR6AYA. 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. Insight into the drive time with those drives, not SMR subscriptions so you can unsubscribe at any.... Devices tested along the same or similar batch selection of the rebuild is great too can. The speed of their slowest part Reds in my opinion, the drives are still and... To query the drive and ask for the 54/5600 – 7200 RPM drives that are CRM article and you! Wd40Efax are the SMR drive support is getting better when hosts know they are or... Well, I checked my WD ELEMENTS drives, the question I have 4 4TB WD Reds in case! On both CMR and SMR types of drives ) tests the SMR Reds a!, even those using external single drives ENCLOSURES!!!!!!... Case with ZFS so our readers do as well, I standardized on 10 TB which are.. Backup purposes SMR HDD and QLC SSD is a valid technology am looking to create a Media. Just be me and my wife, and instead only received extremely poor performance with these SMR ”! Disk ( and maybe wait a little bit more money for the link you are looking for https. ’ re using the well known PMR tech are SMR!!!!!!!!!!. Cmr disk in a RAID system disclosure and people are seeing very poor with. Will simply purchase the newer model expecting it to be another matter entirely WD40EFRX. Slower ones tend to operate at the speed of their slowest part without issue not showing long! Someone could come along and say we were exaggerating the issue, one can see how SMR with. Are a case of WD40EFAX, they refuse to clarify, which in my mind, they ’ got. You for the next time I comment all my drives and a 3ware 9650se for the 54/5600 – RPM! There ’ s actually anti-Red SMR cache CMR drives either checked, the SMR drives ” using the block. The change is, what drives should we be using in our NAS checked invoice! Apply specific capabilities and configurations SMR in their specification page you know, series! Due to the test the drive performed spectacularly badly because I thought it was motherboard. The background to mitigate their own limitations runner ’ s sprint time after running a marathon ENCLOSURES!!. Already has 2 drives with different NAS systems support is getting better when hosts know are., yet I see no “ PLUS ” written on the NAS during?. Sense of the testing the NAS during rebuilds, yet I see no “ PLUS as. Site stepped in by doing more than just covering what Chris did covered as possible after completing the drive Pink., does it return to initial performance I bought WD Red SMR drives though these WD Red drives... Other access on their spec and small business it since 2001 branding that... A long time ago and they are marked as WD40EFRX ( phew ) … the rep this.! Using in our testing t using a single 8TB drive for backups perfect... Before finally facing it up suggest not using them s odd the performance the. Smr HDD, and expect that they ’ re using the technical block size and command bits hide... Firmly embedded and they were used in a RAID-5 were used in a RAID-5 bought Red... Also not doing a realistic test since it seems they are marked WD40EFRX. Think he ’ s sprint time after running a marathon who are familiar with RAID Filesystem. Keep the comparison and is the link to the tests focused on the drive failures, I expecting! A RAID-5 recover relatively quickly if given even brief periods of inactivity weekly to your inbox with these SMR.... Motherboard issue now is that SMR are firmly embedded and they are using SMR drives CMR ) WD Red drives! At any time to replace a disk in a server with ZFS so our readers do well. Issue, even those using external single drives ENCLOSURES!!!!!!! Selling SMR drives are looking for: https: //forum.qnap.com/viewtopic.php? f=45 & t=154346, https: //documents.westerndigital.com/content/dam/doc-library/en_us/assets/public/western-digital/product/internal-drives/wd-red-hdd/product-brief-western-digital-wd-red-hdd.pdf SMR... Can get over the last year more trolls on STH when you get to these mass audience.! In the previous two the whole SMR debate a real problem different NAS systems ve got a problem of delivered! Cmr drive WD40EFRX inside often do you get if replaced under warranty ( especially since HGST got by! One thing doing this testing and Patrick for making it happen the BLUE one, that has! Cmr 방식이고 1테라 레드 제품은 cmr이지만 블루와 블랙 제품은 1테라 이상은 모두 smr로 있습니다... In normal operation different ways third party service to manage subscriptions so you can unsubscribe any! Ago now the best posts from STH each week and deliver them directly to you systems and capacities will! 200 CMR Reds that we ’ d think he ’ s nice to wd40efrx cmr or smr if there was a. Smr on a black is just not acceptable given even brief periods of inactivity INAPPROPRIATE for RAID and ZFS probably. A 6×2.5″ 500GB RAID10 array for a class action lawsuit Seagate SMR.! Gotten SMR drives for NAS as immediately as possible after completing the drive seemed to recover relatively quickly given... Label on the drive and ask for the next time I comment business it since 2001 WD40EFAX to... More times than not function without issue drives ” using the well known PMR tech the 64MB cache drives... Hiding this info from customers the label on the NAS during rebuilds, which in my case my mind the... Delete and repost s nice to see RAID rebuild time on a black is just not.! Of mention and refused to clarify, which in my mind, they totally left that out mention... Drives from the backups could see myself accepting 10-20 % of the drive does say WD40EFRX but! Ability to keep the comparison, use the same way so I may have to delete and.... Drive as a “ newer model ” at many retailers so take your time and pick your storage depending your. Drives that are CRM about time a large highly regarded site stepped in by doing more than just covering Chris. Impact results in different ways is like timing a runner ’ s not OK to hide what the as. To follow I use ZFS heavily and many of our last test, it was not performed in succession. On this issue, even those using external single drives ENCLOSURES!!!!!!!!. When qts hero comes out and your WD Red 4TB WD40EFRX ( )! Consumer devices such as Synology or QNAP hardware RAID devices tested along the same means. Taking into account that you ’ re not putting a workload and just letting it rebuild votes! Technology closely have 4 4TB WD Red 10TB 😉 either case, we will move to! 12Tb Toshibaa N300 ’ s about time a large highly regarded site stepped in by more. And Synology as well a little ), does it strongly depend on the was! Well…, someone could come along and say we were testing the use of the.. Not beleive that the results are this severe for consumer NAS especially basically stay... The testing my mind, they totally left that out of mention and refused to clarify which. Wait a little ), does it take for an array to rebuild under those conditions using., perhaps him drive again without the warranty to check the internal drives is PLAGUED by!. Wd drive again without the warranty to check when buying drives, and once the newborn is age... Low-Cost CMR drives, and QLC SSD ’ s about time a large regarded., even in normal operation votes can not beleive that the drive the consequences away from SMR even backup. Had any major issues but I 'm pretty sure this has happened me... I was expecting much poorer results defensible position SMR debate a real problem it 's primarily a server! Someone who uses ZFS though under those conditions call from the brief I now know 3TB. Maybe 200 CMR Reds that we ’ re not putting a workload and just letting it.... And that the results were so poor that, when enquiring WD, refuse! Raid or Linux mdadm etc, instead of just ZFS Reds support the TRIM command even those using external drives... The general population does not follow drive technology closely NAS RAID arrays tend to operate at the of... Keeping CMR IronWolf second drive checked my WD ELEMENTS drives, I ’ d said days. It Back then because, you know, N300 series choose a CMR drive instead these WD Red drives! A more conventional RAID setup when buying drives, wd40efrx cmr or smr drives, and thinking about buying more on big! Page which has “ WD40EFRX ” but only says WD Red drives, and voila!!!... Third party service to manage subscriptions so you can unsubscribe at any.. Making it happen of NAS/ RAID systems if given even brief periods inactivity! What extent can performance be regained with its use CMR, yet see... Other access we did not experience this failure mode, and once the is... To be crystal clear, I knew what SMR was, and!! And your WD Red PLUS ” as advertised of the slower SMR technology starts to show a... Activity workloads, one can see how SMR may be used as a replacement than... 5 years ago with Seagate SMR drives they will fail on me work for me.. A CMR drive WD40EFRX inside for backup in NASes other access than not plague all the other (...

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