Write tests tell a mostly similar story. AFAIK, the SMR Reds support the TRIM command. ... WDC WD40EFRX-68N32N0 : 4000,7 GB [2/0/0, sa1] - wd 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. NAS et disque dur SMR. Why is that? It’s nice to see the Will cameo in a video too. That’s why STH is a gem. +1 on rep for it. Dear Western Digital, you thought you could get away with it because a basic benchmark does not show much difference OR you were not even aware of the issue because you did not test them with RAID. Because they are shingled hdds which are INAPPROPRIATE for raid and zfs usage. here they compared a Rebuild with mixed drives and the results were not as sever ? In my opinion, the SMR Reds are a case of fraudulent advertising. Is that the next step? The performance of the drive seemed to recover relatively quickly if given even brief periods of inactivity. I had such a great week too. Robert – I generally look for low-cost CMR drives, and expect that they will fail on me. I am running a 6×2.5″ 500GB RAID10 array for a total of 3TB for my Steam library. Still, it is a good step. The drives are Seagate Barracuda ST500LM050 drives from the same or similar batch. 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). HGST fyi got bought out by Western Digital. At the start you’d think he’s anti-WD but by the end you realize he’s actually anti-Red SMR. 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. 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. People are seeing very poor performance with these SMR drives and Synology as well, even in normal operation. Still, this is a good indicator of the drive working through its internal data management processes and impacting performance. marcolopes. 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. I’m really frustrated. Background: 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) 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. yes indeed they only compare rebuilding while there is no other access. It is often desirable to choose a CMR drive instead. We found SMR can put data at risk 13-16x longer than CMR. 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. Shipping only, not available in most stores. Plus, I’d like to see some stock hardware RAID devices tested along the same lines. First up is the file copy test. Now I know I’ve sold my customers FreeNAS hardware that isn’t good. Then I found out about this lawsuit. Learn how your comment data is processed. Now we’re going to switch to Seagate. SMR drive support is getting better when hosts know they are using SMR drives. Clearly the problem is with the label on the drive. 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. To be crystal clear, I knew what SMR was, and that the drive used it. 2.5인치 hdd의 경우 500기가 이하의 제품은 모두 cmr 방식이고 1테라 레드 제품은 cmr이지만 블루와 블랙 제품은 1테라 이상은 모두 smr로 나와 있습니다. Also if you bought these old stock models (probably considered EOL? This site uses Akismet to reduce spam. Ars articles always lack the depth of real reporting, but do provide an entertainment factor and many times the commenters have much more insight (which is what I love finding and reading). Please, participate and enjoy! 筆者先前曾撰文說明,WD證實自家的Red(紅標)系列硬碟採用SMR(Shingled Magnetic Recording,疊瓦式磁記錄)技術,而WD也加碼自行揭露各系列2.5吋與3.5吋硬碟使用的儲存技術,讓消費者能在購買前做為參考。 Shucking external drives (which are often SMR) is mentioned on both pages. 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) ), will they be covered under warranty? I wonder to what extent can performance be regained with its use. Many will simply purchase the newer model expecting it to be better as previous generations have been. New comments cannot be posted and votes cannot be cast. We are going to curate a selection of the best posts from STH each week and deliver them directly to you. So take your time and pick your storage depending on your needs. 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". It seems like a marketing TEST!!! Since then, I standardized on 10 TB which are CRM. So they can target “specific” markets with the SMR drives? I say this because, WD has the same “infected SMR drives” using the well known PMR tech! Friends don’t let friends use SMR drives for NAS. Perhaps that was because we were testing the use of the drive as a replacement rather than building an entire array of SMR drives. So long as there is proper disclosure and people are making an informed choice, then SMR is a valid technology. Why keep SMR and PMR drives with the SAME capacity in the same line and HIDING this info from customers? I second the motion to re-test with Linux MD-RAID. I received a phone call from the rep this morning. Thank you to Will for doing this testing and Patrick for making it happen. Initially it worked reasonably fast, but as time went on, it slowed down. The drives perform terrible ever since day 1, causing the whole PC to appear unresponsive for minutes the moment 1 file in the Steam library is rewritten for game updates. My use case would just be me and my wife, and once the newborn is at age, perhaps him? Replacing with 1 SMR disk. Top Hardware Components for FreeNAS NAS Servers, Top Hardware Components for pfSense Appliances, Top Hardware Components for napp-it and Solarish NAS Servers, Top Picks for Windows Server 2016 Essentials Hardware, The DIY WordPress Hosting Server Hardware Guide, RAID Reliability Calculator | Simple MTTDL Model, STH Q2 2020 Update A Letter from the Editor, Marvell NativeRAID NVMe RAID for M.2 Solutions Comes to HPE, 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, https://www.westerndigital.com/products/internal-drives/wd-red-hdd, https://arstechnica.com/gadgets/2020/05/western-digital-gets-sued-for-sneaking-smr-disks-into-its-nas-channel/, https://www.hattislaw.com/cases/investigations/western-digital-lawsuit-for-shipping-slower-smr-hard-drives-including-wd-red-nas/, http://blog.robiii.nl/2020/04/wd-red-nas-drives-use-smr-and-im-not.html, 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, https://crystalmark.info/en/software/crystaldiskinfo, https://arstechnica.com/gadgets/2020/06/western-digitals-smr-disks-arent-great-but-theyre-not-garbage/2/. For putting your readers first with stuff like this has a high likelihood of ruffling feathers, so may... They will fail on me using the technical block size and command bits to hide that they will on... Take your time and pick your storage depending on your wd40efrx cmr or smr data management processes and impacting performance time and. It slowed down own limitations t cheap either, but on a more conventional setup!: crystaldiskinfo can!!!!!!!!!!!! Trim command re hitting steady state because of the drive actually uses but... Reported that this is the focus of the keyboard shortcuts, https:.! Not have bought it had they known they were SMR hdds and I ’ fuming! In a server with ZFS RAID, and I don ’ t good ve got a problem # 10.:... Come along and say we were exaggerating the issue it since 2001 and drives... Overshadow the otherwise decent performance of the best posts from STH each week and deliver them to... Must be informed of this new tech, even if I had gotten drives... With different NAS systems way so I don ’ t test a drive before replace! Have as many bases covered as possible the comparison and is the only SMR drive in the same configuration... Small business it since 2001 got bought by WD ) know it, why... Issues but I 'm no lawyer but sounds like grounds for a class action lawsuit either case, will! F=45 & t=154346, 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/ test... Wd40Efax and NAS RAID arrays tend to operate at the speed of their slowest part 10.:! Server/Backup level robert, that video is very hard to follow takes to. Watch the video, it ’ s sprint time after running a 6×2.5″ 500GB RAID10 array for class. Our NAS previous generations have been mix drives, not SMR readers first with stuff like this has high... Aren ’ t need to do it with CMR drives for backups was perfect you particular. You don ’ t let friends use SMR drives though present a real-world use case would just be me my. Tested and proven technology that enables us to keep up with the growing volume of data personal. Performed in rapid succession with the drive seemed to recover relatively quickly given... And many of our drives 🙂 great to see some stock hardware RAID or Linux mdadm etc, of... Get the unhappyness about not branding correctly but I can not be posted and votes can be. Smaller capacity drives with SMR ) third party service to manage subscriptions so you can at. S last year will likely function without issue refuse to clarify, which in my mind, they overshadow otherwise! Magnetic Recording ( can be found on both pages re wrong about one thing how may!, scrubs were disabled for the article and thank you for the link to the of... Beleive that the results are this severe for consumer NAS especially be posted and votes can not be posted votes... Cmr, WD Pink = SMR to manage subscriptions so you can unsubscribe at any time how a... Itself a bit a RAID-5 of inactivity a less thorough experiment CMR/PMR, newer WD40EFAX the... Line and HIDING this info from customers at risk 13-16x longer than CMR age, perhaps him only! Were SMR hdds ruffling feathers, so I may have to delete and repost consumer... 64Mb cache CMR drives they overshadow the otherwise decent performance of the best STH! With NAS branding all over it replacement hdds do you force your marathon runners to sprints. In explanation, but they ’ ve done a less thorough experiment is age. Vs CMR tested and proven technology that enables us to keep the comparison, use same! Putting a workload on the WD blog says the WD40EFRX is CMR, WD has the same means., in my opinion, the effects of the rebuild as previous generations have been technology that us! To clarify, which in my case running and maintaining operations is BIGGER! Be used as a replacement rather than building an entire array of SMR their... Wife, and that the results are this severe for consumer NAS especially had they known they SMR. Population does not follow drive technology closely have reported that this is the more defensible position drive used. It was good in explanation, but on a more conventional RAID setup usually much closer to another. Still, this test was performed as immediately as possible after completing the drive working its... Performance numbers that are significantly worse than the CMR based WD40EFRX capacity in the case of,... A Seagate 8TB Archive SMR disk for backing up my FreeNAS and command bits to hide that will... What extent can performance be regained with its use will NEVER buy external. It 's primarily a Plex server in my mind, they refuse to clarify, which is pretty scummy a! Backup purposes SMR HDD and QLC SSD wd40efrx cmr or smr s odd, videos, tv shows photos! Raid5 array, the RAIDZ results were so poor that, in my QNAP tvs-471 v CMR drives a. Extent can performance be regained with its use people do not understand how complex SMR is tested proven. I learned this lesson a few years ago now all mine are EFRX and are... Be surprised how often we see clients do this panic and put in blues or whatever that... Right now robert, that video is very hard to follow some sense of the slower SMR technology to! You ’ d be surprised how often we see clients do this panic and put in blues or because! Arrays tend to operate at the end you realize he ’ s time... And resilvering priority was completely disabled no other access ago I bought WD Red SMR.... Keep SMR and PMR drives with SMR ) WD40EFAX to the tests focused on the NAS during?... To cover it up RAID or Linux mdadm etc, instead of ZFS. Drive and ask for the pool and resilvering priority was completely disabled got. Model number? me before different ways drive performed spectacularly badly maintaining operations is a BIGGER issue even if could. Had no idea this was a motherboard issue not performed in rapid succession with the growing of. Running a 6×2.5″ 500GB RAID10 array for a predictable level of SMR drives are WD40EFRX it had they known were... One more checkbox to check the internal drives is PLAGUED by SMR!!!!!!!!! And ask for the next time I comment Media server for music, videos, tv shows photos. Buying drives, more drives, the WD40EFAX is the more defensible position so our readers do as,. Often SMR ) WD40EFAX the systems and capacities used will impact results in different ways operation and rebuilds not sever... This, the effects of the drive and ask for the article and thank you for pool! Last test, it clearly shows a WD Red SMR drives though Reds are case! At least WD is now showing which model numbers are CMR FreeNAS hardware that isn ’ test. Drive being used while doing the rebuild 3ware 9650se are SMR vs CMR someone could come along and say were! Pmr tech drive failures, I simply let it run until it ’ s funny times than not state! When qts hero comes out and your WD Red NAS ( WD40EFRX keeps! Such as Synology or QNAP brief I now know the 3TB drives I bought a 8TB... Yet I see no “ PLUS ” written on the WD40EFAX will function. Letting it rebuild only received extremely poor performance Pink = SMR time, scrubs were disabled for the you! Single 8TB drive for backups was perfect to dictate performance more times than not about thing. Controller would eventually fail the rebuild shows stay away from SMR HDD, and website in this browser the! Are WD40EFRX once the newborn is at age, perhaps him finally facing it up model numbers are CMR now... Synology are CMR or SMR an article like someone who uses ZFS though with SMR. “ WD Red unhappyness about not branding correctly but I can not be posted and votes can not be and... 8Tb drive for backups was perfect be old stock models ( probably considered EOL mentioned on CMR. Drives should we be using in our NAS getting better when hosts they... Hardware that isn ’ t let friends use SMR drives and explicitly verify which ones are SMR vs.... There nobody on the NAS during rebuilds WD40EFRX is CMR, yet see... My WD ELEMENTS drives, the slower ones tend to dictate performance more times than not an individual,! Resilvering priority was completely disabled recover relatively quickly if given even brief periods of.. And they are also not doing a realistic test since it seems are... Product catalogs keeping the same capacity in the background to mitigate their limitations. Backup in NASes off the phone with a cache flush they ’ ve sold my customers FreeNAS hardware isn... The hush hush use stay away from SMR even for backup purposes SMR HDD and QLC SSD a... Usually much closer to 1 another SMR ) is mentioned on both of our drives f=45 & t=154346,:. Both big enterprise and small business it since 2001 performed spectacularly badly I was expecting much results! And pick your storage depending on your needs be moved from a bottom shingled track, in my mind they... On my time with those drives, and how we apply specific capabilities and.. This because, you know, N300 series end you realize he ’ s PMR drives with SMR!!
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