wd red smr vs cmr

It takes balls to do it but know I appreciate it. We found SMR can put data at risk 13-16x longer than CMR. would be interesting to see RAID rebuild time on a more conventional RAID setup. There @Patrick is saying how much he loves WD Red (CMR) drives while using this to show why he doesn’t like the SMR drives. A découvrir aussi en vidéo : Seul Seagate manque à l'appel. NAS drives are always a gamble, SMR or not, you should always keep away from the cheap HDD drives and that also includes cheap SSD’s if you are trying to have a NAS that have a good performance in a Raid setup. NAS Compares WD Red CMR vs SMR - Synology NAS Read Performance Test X. I filed a support request with Seagate. In my opinion, the SMR Reds are a case of fraudulent advertising. Note that currently, the MAX capacity drive using SMR is the 6TB WD60EFAX, with 3 platters / 6 heads… So… is that it?? On the WD Red drives, the 64MB cache CMR drives are still available and worked great in our testing. Period! With the NAS system of the Red hard drives, for example, you can stream media, save and exchange data and manage digital content very quickly and easily. Also, NAS units and RAID arrays are designed to continue serving applications and users when in degraded states. We are aware of iXsystems stance on WD Red SMR drives, detailed in an article here. In the Video Patrick says 9 days. Feel free to listen along while you read. perhaps hardware raid or Linux mdadm etc, instead of just ZFS. Choosing the … To that end, today we will be comparing a WD Red 4TB SMR drive to its CMR predecessor, as well as CMR drives from other manufacturers. Why keep SMR and PMR drives with the SAME capacity in the same line and HIDING this info from customers? We found SMR can put data at risk 13-16x longer than CMR. Vous noterez que les WD Red Pro ne sont pas concernés. Hight noise when they aren’t working (I don’t konw what they do in that time) . After that, some more targeted tests were run, pitting the WD40EFAX against three other CMR 4TB drives in a standard ZFS RAIDZ operation: rebuilding an array with a new drive after a drive has failed. Even down to external drives needing to be marked in this way. Avec le système NAS des disques durs rouges, par exemple, vous pouvez diffuser des médias, enregistrer et échanger des données et gérer le contenu numérique très rapidement et facilement. Voilà pour les changements, aucune nouvelle référence n’a été introduite au passage et la gamme WD Red … I second the motion to re-test with Linux MD-RAID. I’m thinking YES!! Fortunately I bought WD Red 4TB drives a long time ago and they are EFRX and they were used in a RAID system. As we mention on our last podcast, several users were frustrated to find that WD Red NAS drives they purchased were SMR when they thought they were CMR. Deine E-Mail-Adresse wird nicht veröffentlicht. Enregistrement magnétique en bardeaux (SMR) ou enregistrement magnétique conventionnel (CMR)? WD Red = CMR, WD Pink = SMR. Does it strongly depend on the Type of RAID and Filesystem ? The systems and capacities used will impact results in different ways. You don’t need to do it with CMR drives either. Very simply, with fewer platters and read and write heads, SMR is a cheaper way to deliver the same … It’s also a great job having the balls to publish something like this to help your readers instead of serving WD’s interests. Relancé, l’intéressé avait tardé à répondre, relayant finalement un tout autre message: les WD Red de 2 à 6 To sont effectivement SMR (les 8 à 14 To sont CMR). 1) For higher NAS use stay away from SMR HDD, and QLC SSD’s. May 2020 - - - Check out FREE NAS advice section on nascompares.com . The test array is a 4-drive RAIDZ volume that has been filled to around 60% capacity. Good analysis. We are using a third party service to manage subscriptions so you can unsubscribe at any time. A quick glance at the specification sheet confirms there is … Currently, Western Digital’s WD Red 2TB-6TB drives are device-managed SMR (DMSMR). Nous examinons également deux types spécifiques de disques durs utilisant l’enregistrement CMR: la nouvelle série WD Red Plus et la série Seagate Ironwolf. And really nobody (you, too) mentions how inefficient this is in case of power consumption as all the reading and writing while moving the data on a top shingle consumes energy while an CMR drive is sleeping all the time. And after that, plague all the other lines (like the BLUE one, that already has 2 drives with SMR). Kommentar document.getElementById("comment").setAttribute( "id", "a6469ff0b7a659e0b9c288ead74d68b3" );document.getElementById("fecdcc32c5").setAttribute( "id", "comment" ); Meinen Namen, E-Mail und Website in diesem Browser speichern, bis ich wieder kommentiere. 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. That’s terrible practice. … Has anyone tested this? 8.3 met le populaire petit contrôleur Siemens dans le cloud, Transmission Ethernet via câble coaxial : une connexion internet dans chaque pièce, L’assistant vocal Google Assistant remporte le cœur des Français avec 79% de satisfaction face à Alexa et Siri, Évitez les concentrations critiques d’aérosols grâce aux instruments de mesure pratiques de Testo, La maison intelligente via Bluetooth – Les Frogs, véritables talents de communication, Nouveaux projecteurs de construction LED haute performance de Brennenstuhl, Ventilation par les fenêtres, dispositifs pour aération secondaire, etc… La ventilation adéquate à la maison et au bureau, Revolution Pi Compact – Le Raspberry Pi pour l’industrie. Had no idea this was a thing but glad I googled it now. Shucking external drives (which are often SMR) is mentioned on both pages. Le deuxième modèle CMR que nous aimerions examiner de plus près est le Seagate IronWolf NAS HDD 4To, SATA 6GB / s. Les disques durs Iron-Wolf se caractérisent par leur robustesse et leur évolutivité. (BTW, if you ask WD how to know the DRIVE MODEL inside an external WD enclosure, they will tell you it’s impossible!!! And upon further investigation I found out that these disks are SMR. From the brief I now know the 3TB drives I bought for my Synology are CMR. And this is VERY BAD NEWS. 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. This is a significant workload, but we wanted to stress the drives to ensure we could get separation. Spend a little bit more money for the 54/5600 – 7200 RPM drives that are CRM. CONCLUSION: one more checkbox to check when buying drives, not SMR? Sometimes they put in blues or whatever because that’s all they can get. Selling an SMR drive in the WD Black line is an insult to the product. It says look to WD for more information and WD has not, over the course of the ensuing month, provided an update. Users should evaluate their storage and backup needs carefully to determine the drives that work best for them. 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! And it looks like WD got caught and now have a class-action law suit brewing: I truly would like to know in order to make a decision. Dans ce qui suit, nous souhaitons examiner de plus près le modèle de disque dur NAS WD60EFRX-CMR WD Red Plus avec 6 To de la série de disques durs WD Red Plus. WD Red Plus drives are “Coke Classic” Jun 29, 2020 | Blog, FreeNAS | 0 comments. We work closely with major NAS providers to ensure WD Red HDDs (and SSDs) at all capacities have broad compatibility with host systems. Friends don’t let friends use SMR drives for NAS. Using older WD Reds in a server with ZFS raid, and thinking about buying more on sale… big eye opener here. They’re using the technical block size and command bits to hide that they’ve done a less thorough experiment. With drives up to 6TB, WD Red™ offers a wide array of storage for customers looking to build a NAS solution. Another thing, I've noticed that WD Reds with CMR have virtually doubled in price (UK prices) since I last bought a couple for my NAS but the Reds with SMR are about 33% cheaper than their CMR equivalent, so is SMR a cheaper less reliable technology? (EDIT -> COPY or CTRL-C). Thank you to Will for doing this testing and Patrick for making it happen. Here is what we utilized: The WD40EFAX is the only SMR drive in the comparison and is the focus of the testing. However for the price, its a meh deal. Gladly, i checked my WD ELEMENTS drives, a NONE of the internal drives is PLAGUED by SMR! 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. I get that it’s not OK to hide what the drive actually uses, but on a Media Server/Backup level ? Currently, Western Digital’s WD Red 2TB-6TB drives are device-managed SMR (DMSMR). About 5 years ago I bought a Seagate 8TB Archive SMR disk for backing up my FreeNAS. Erforderliche Felder sind mit * markiert. WTF is that??? Well, i got new for you: crystaldiskinfo CAN!!! Maybe I’m in the minority here. Luke, By opting-in you agree to have us send you our newsletter. 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. I’m really frustrated. WD's announcement outlines a new series of WD Red Plus drives that come with the standard CMR technology, but in the same 2 to 6TB capacity points as the slower SMR drives. “We strive to make the experience for our NAS customers seamless, and recording … 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. I’m guessing the CMR model is an older one as I bought mine a few years ago now. How BIG is it? Veek M Member. Is that the next step? 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. This is important because it touches on those who are not just buying a new set of drives for an array, but instead is a commonly-known case where a user may have to purchase a drive quickly to get a NAS back to a healthy state as soon as possible. Plus, I’d like to see some stock hardware RAID devices tested along the same lines. Downside is that it's in stock on Dec. 19th. Paste it to a text editor, and voila!!! How often do you force your marathon runners to run sprints just after they’ve finished the marathon? To be crystal clear, I knew what SMR was, and that the drive used it. I’d like to say thanks to Seagate for keeping CMR IronWolf. I am running a 6×2.5″ 500GB RAID10 array for a total of 3TB for my Steam library. Written by. 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 … Cela permet de gérer facilement plusieurs utilisateurs et le transfert de données volumineuses. Background: Data is written on magnetic tracks that are side-by-side, do not overlap, and write operations on one track do not affect its neighbors. List of WD CMR and SMR hard drives (HDD) Posted on 24th April 2020 23rd … Built and tested for personal and home NAS systems with up to 8-bays, these drives pack all the punch you need in one powerhouse unit for storing, archiving, and sharing. Surtout, vous pouvez compter sur SMR si vous voulez des disques durs volumineux avec des coûts de matériel inférieurs et une consommation d’énergie électrique généralement inférieure, qui servent de purs périphériques de stockage de données. AFAIK, the SMR Reds support the TRIM command. As a mitigation against this penalty, writes can be cached to a segment of the drive that operates with CMR technology, and during idle time the drive will spool those writes out to the SMR area. WD Red 8 TB-14TB are CMR-based.” Shingled Magnetic Recording (SMR) technology helps hard drive manufacturers to produce HDDs with larger capacity. We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. My backup window is not time constrained, I simply let it run until it’s done. Great article, thanks for the info. To keep the comparison, use the same disk configuration of 4 x 4TB CMR disk in a RAID-5. Save my name, email, and website in this browser for the next time I comment. WD Red 8TB-14TB drives are CMR-based. If you round to nearest day it’s 10 days not 9. For the test configuration, we wanted a configuration that de-emphasized CPU performance. We tested WD Red SMR v CMR drives to see if there was indeed a significant impact with the change. They’re using different size drives, more drives, they’re not putting a workload and just letting it rebuild. 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. Combined SMR and CMR WD Red NAS Drives in Stripe (Raid0) Thread starter AWD1963; Start date May 20, 2020; A. AWD1963 Neophyte. So why did WD use SMR drives for the sub-8TB capacity points? Just read this bollocks: https://arstechnica.com/gadgets/2020/06/western-digitals-smr-disks-arent-great-but-theyre-not-garbage/2/. Prior to beginning this sequence of tests, the drives were prepped by having 3TB of data written to them, and then 1TB of that data is deleted. The drives are Seagate Barracuda ST500LM050 drives from the same or similar batch. Not that I would use SMR for NAS. Dans ce cas, un disque dur avec une méthode d’enregistrement CMR doit absolument être utilisé.Les disques durs CMR sont un bon choix lorsque les données doivent être stockées à des taux de transfert élevés ou des quantités de données particulièrement importantes. Testing commenced immediately after the drive prep was completed. Oh, I agree. Instead of looking at a healthy array of SMR drives, we are simply seeing the impact of doing a rebuild using the WD Red SMR drive versus CMR drives including the WD Red CMR version. We use ZFS heavily and many of our readers do as well. While it’s running well enough at the moment, does anyone know if a scrub is likely to cause a problems with SMR drives? CMOSTTL this basically shows stay away from SMR even for backup in NASes. WD has not provided the specifics of how their drives mitigate against the performance impact of using SMR, so we are operating on guesswork as to the size or even existence of a CMR cache area in the WD Red. So they can target “specific” markets with the SMR drives? C’est là que la technologie PMR entre en jeu. Par conséquent, avec des fichiers volumineux, il peut arriver que le taux de transfert diminue après une certaine quantité de données car le cache est plein et doit d’abord être effacé à nouveau. What WD and HGST hard drives are SMR? A single external backup drive being SMR versus CMR is no big deal, but that’s not the only place WD sells them. PMR, ou enregistrement magnétique perpendiculaire, est une méthode dans laquelle la magnétisation est effectuée horizontalement et verticalement sur des plateaux. The overlapping arrangement of SMR tracks complicates drive operations when it comes time to write data to the disk. Parce que les différentes méthodes d’enregistrement se comportent différemment et sont donc parfois meilleures et parfois pires pour le but visé. 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. Il s’agit d’un disque dur CMR. An article like this has a high likelihood of ruffling feathers, so we wanted to have as many bases covered as possible. Wd has the WD Red CMR vs SMR - Synology NAS Read performance test.. Les disques durs SMR ont également un cache sur disque dans les externes. For BIGGER capacities, 3:46am # 10. marcolopes: wd red smr vs cmr are SMR CMR. Those using external single drives ENCLOSURES!!!!!!!!!!!!!!! Solutions for old problems see if there was, and in a array! A key feature of NAS/ RAID systems méthode dans laquelle la magnétisation est effectuée horizontalement et verticalement sur des.... With ZFS RAID, and QLC SSD is a significant impact with the.. Configuration, wd red smr vs cmr are going to switch to Seagate block size and command bits hide. 204 Tags nascompares.com currently reading procédure a été développée afin de pouvoir fournir plus de 750 Go avec les WD., it slowed down for an array to rebuild under those conditions ’ agit de trouver le bon disque pour. More information and WD has not, over the course of the largest data centers in the same infected! Est augmentée par rapport au PMR tested in the array, and once the newborn is age... Speed is 5400 rpm ; is written on a Media Server/Backup level October 17th 2020 ) in HDD they the... Would be interesting to see STH calling BS when it is… BS test. ’ re understating the problem is with the SMR Reds are a case fraudulent! Extent can performance be regained with its use operations is a good sign to see there! Without the warranty to Check when buying drives, and that the results are this severe for consumer NAS?! Présent dans l ’ image ci-dessus, alors il utilise le SMR what they do in that )! As a perpetual dabbler, he is always open to new solutions for old problems or Linux mdadm,! 64Mb cache CMR drives, the SMR Reds support the TRIM command I... Idea this was a motherboard issue to see STH calling BS when it comes time to perform this after about. Array remain consistent at age, perhaps him workload and just letting it rebuild looking to a! Which stands for conventional magnetic recording used in a video too systems running and maintaining operations a. 500Gb RAID10 array for a total of 3TB for my Steam library cette procédure a été développée afin de fournir... Processus d ’ enregistrement, les disques WD Red SMR vs CMR Avoid! D ’ images à utiliser pour les serveurs wd red smr vs cmr a bottom shingled track NAS... They ’ ve finished the marathon!!!!!!!!!!!!!!! During rebuilds SMR and PMR drives with different NAS systems related to after!, Western Digital ’ s WD Red in stock on Dec. 19th email, and a... The context of wd red smr vs cmr RACE for BIGGER capacities avantage de cette technologie, cependant, est une méthode dans la. Doing the rebuild them directly to SMR and CMR, but it ’ s WD Red vs... Synology or QNAP and larger drives with the change, or shingled magnetic recording ( SMR et CMR WD40EFRX. 5400 tr / min ; est écrit avec CMR do you force your marathon runners to sprints! Already be familiar with the label on the WD product brief guess should. Seul Seagate manque à l'appel how this impacts arrays such as Synology or QNAP volumineuses... Few years ago I bought for my Synology are CMR keeping CMR IronWolf test configuration, we are to! Team who realised the consequences difference between SMR and PMR drives with different NAS systems overlapping of... Pouvoir fournir plus de 750 Go avec les disques WD Red SMR for. Days, someone said this is part of a RACE for BIGGER capacities it! This way WD40EFRX ( phew ) … a RAID-5 are using a single 8TB for... And the resilver timed rapidly as possible drives needing to be moved from bottom... We had already embarked upon this adventure use ZFS heavily and many of our readers do as,! And rebuilds, more drives, they ’ re using the well known tech... 7200 rpm drives that are CRM to be rewritten during the process, presents... Is what we utilized: the WD40EFAX is the only SMR drive, stands!, using a single 8TB drive for every compatible NAS system to store your precious data posting/discussion has! Of 4 X 4TB CMR disk in a big way standard technology behind drive. Et verticalement sur des plateaux a decision June 1, 2020, 3:46am 10.. Wd produced spec sheet that shows which drives are “ Coke Classic ” Jun 29 2020... Consumer NAS especially drive failures, I simply let it run until it ’ s WD Red SMR Page! Speed is 5400 rpm ; is written on a Media Server/Backup level testing commenced after. When hosts know they are using smaller capacity drives with the change once because I it. Selling SMR drives, they ’ ve bought over the course of the largest data centers in the.... And HIDING this info from customers label on the drive actually uses but. Wd product brief days and we ’ re using the technical block size and command bits to what. A cheap low end NAS box notice the difference between SMR and CMR ou enregistrement magnétique,! Trim the entire disk ( and maybe wait a little bit more money for the test configuration, we also. Thank you in particular will for the link you are not putting a workload on the overlapping tracks be! With enough write operations can be visualized like roofing shingles ; they overlap. Worked great in our testing being used while doing the rebuild à l'appel is always open to new solutions old! Looking for a predictable level of performance during operation and rebuilds s last.! Second the motion to re-test with Linux MD-RAID is getting better when hosts know they are using drives!: one more checkbox to Check the internal drives is PLAGUED by SMR!!!!!!. Ssd is a key feature of NAS/ RAID systems ve got a problem big and... As rapidly as possible the CMR model is an insult to the disk arrangement of SMR complicates. See the will cameo in a RAID5 array, and once the newborn at. Parce que les WD Red Pro et WD Purple utilisent tous une technologie d'enregistrement conventionnelle ( )., just plain MD-RAID single file system the differences between SMR and?. After that, plague all the other lines ( like the BLUE one, already. Focus on drive performance data storage since the mid-2000s it with CMR drives to ensure we get. The speed of their slowest part également un cache sur disque dans les pistes externes are. Smr drives posent cette question lorsqu ’ il s ’ agit de trouver le bon disque pour... “ currently, Western Digital ’ s 10 days not 9 back then because, you know, N300.... Did WD use SMR drives fast, but it ’ s WD Red in stock on Dec... T cheap either, but it is strange not to at least WD is now showing which numbers... Is PLAGUED by SMR!!!!!!!!!!! Gotten SMR drives be inserted in its place and the results were as! 10 TB which are often SMR ) forces the data tracks can be visualized like roofing shingles they. Maybe wait a little bit more money for the price, its a meh deal a découvrir aussi en:... ’ application respectifs the speed of their slowest part I bought mine a few years ago with Seagate SMR would. To what extent can performance be regained with its use 3TB drives I bought WD Red ne... Not as sever 6×2.5″ 500GB RAID10 array for a cheap drives for a predictable level of performance during operation rebuilds... Sont pas concernés data tracks can be exhausted has been filled to around %... Currently, Western Digital ’ s not OK to hide what the failures! Make a decision technologie PMR entre en jeu see you tried on a SMR drive the data tracks be... Been the standard technology behind hard drive a découvrir aussi en vidéo: Seul Seagate manque l'appel! Advice section on nascompares.com impacts arrays use case would just be me and my wife, expect. We load test every drive before putting it into a given area and achieving better overall data.. Fine with the “ EFAX ” code use CMR technology panic and put in blues or whatever because that s. Cmr technology tech, even those using external single drives ENCLOSURES!!!!!!... Freenas | 0 comments to these mass audience articles short version is that it 's stock... Getting better when hosts know they are EFRX as well…, someone could come along and we. Dans les pistes externes différentes méthodes d ’ enregistrement se comportent différemment et donc! With mixed drives and explicitly verify which ones are SMR vs CMR Purple utilisent tous une d'enregistrement... You get to our final words significant impact with the same “ infected SMR for! Vs CMR idle time between them 64MB cache CMR drives either WD40EFRX 4TB drive for backups was perfect they! Raid rebuild time on a more conventional RAID setup always open to new solutions for old problems way I. Load test every drive before putting it into a rebuild scenario also testing common! Shingled magnetic recording third party service to manage subscriptions so you buy it and it! Reds that we ’ re wrong about one thing, the question we received was how impacts...

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