Synology shr vs shr2. Jul 6, 2016 · SHR and SHR-2.

Synology shr vs shr2. But my question was also witch one needs .

Synology shr vs shr2 As SHR is linked to Synology, if there is a problem with the NAS itself I guess all the contests of the disks are unrecoverable (unless another Synology device is used). The question is how much faster, if at all, a new Store Pool initialization is vs conversion of SHR-1 to SHR-2. Nov 6, 2019 · Thank you for your reply. com Mar 14, 2020 · A user asks about the difference between SHR and SHR-2 disk configurations for a 4-bay NAS. In RAID terms, I suppose this would be a RAID5 -> RAID6 migration which according to some Synology help page seem to be possible (could someone please confirm this?) It doesn't however seem to be possible to go from SHR-1 to SHR-2 (even though this corresponds to RAID5 -> RAID6). Learn how each RAID type protects your important data during hard disk malfunctions. Sep 22, 2023 · I recently purchased a second hand NAS wirt the current setup: DS1621+ with 3 x 16TB and 2 x 20TB disks in SHR. Synology will on its own try to make the largest drive in your NAS the Parity drive. RAID5) a while ago. If you have one or two droves of the same size it's equivalent to raid-1. Here what i got in the mail: thank you for the inquiry. In order to get SHR-2, you have to start with a minimum of 4 drives. SHR is similar to RAID 5 in terms of fault tolerance. Sep 25, 2021 · Here are the performance figures of the Synology DS1817 running with 4GB RAM, 4 x 8TB discs and 2xSSD cache and SHR-1: iperf3 -c 10. Once you‘ve added enough disks for redundancy, all extra disks just add storage space without being used for redundancy. Feb 20, 2017 · The choice of SHR-1 vs SHR-2 comes down to several factors: * is write speed important? SHR-1 writes faster than SHR-2. One thing to note is SHR vs SHR2. Fully loaded, you can actually somewhat utilize 10Gbe with SHR-2, but with only 4 drives, SHR-2 is somewhat stupid - either get more drives or use RAID10. Die Wiederherstellung von Daten nach dem Ausfall eines einzelnen Laufwerks ist sowohl mit SHR als auch mit SHR2 einfach. I've read about the drive arrangement options (SHR, JBOD) for hours but feel that I don't fully understand them. SHR2. Do your backup to a separate device. In Unraid you assign this role manually. My friend owns a business and runs a RAID F1 system on Synology also in the city. The Slim Synology with SSD was last added as the “SATA” test was not conclusive RAID 10 & RAID 6 & SHR-2 (143min vs 151 min vs 139 Nov 7, 2022 · SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. 46Tb, will that be the same/more/less using SHR? Sep 21, 2018 · Use the RAID calculator that Synology has to compare your scenario with RAID5 vs SHR. If you wanted to migrate to offsite later, then use 3 disks in SHR-1 with one disk as a hot spare. Though as a point of note, it is a touch slower than traditional raid. SHR will make use of the extra storage at the 2x4 + 2x8 scenario whereas RAID5 will not. If all the drives are the same size, then SHR2 is RAID6. 01 MBytes Apr 16, 2020 · I'm considering trade-offs between the extra available storage provided by SHR-1 vs. Ask a question or start a discussion now. I keep seeing videos about hyper backup. Feb 27, 2012 · Quick Q. If you want to expand an SHR with two-drive fault tolerance (i. However the key strengths in a Synology SHR RAID setup is: You only need two disks to build an SHR array and after that you can add drives to the Synology Hybrid RAID at anytime. I know SHR/RAID5 is a no-go for 8TB disks, but was wondering if SHR2/RAID6 is also close to the edge with 6 x 8TB disks. Mar 20, 2023 · Hi I just purchased a new DS1821+ NAS and 5x 14TB drives. Hi! Come and join us at Synology Community. SHR2 with our detailed Synology RAID guide. Like actually equivalent dsm just creates a single raid volume. 0 beta I'm 'using the nas with two 1TB hard drives configured in raid 1 mirrored mode but in fact in this mode, 'I only have 1 TB of usable space for storing data. Feb 19, 2022 · How Synology SHR differs from traditional RAID. I have now purchased a new 20TB HD and my plan was to put this in the last empty tray in the 1621 and migrate from SHR to SHR-2. A place to answer all your Synology questions. When comparing Synology Hybrid RAID (SHR) and traditional RAID configurations, it's essential to understand the key distinctions that may influence the choice between them based on the specific needs and contexts of users: Flexibility and Ease of Use: Note that having two BASIC (or SHR) 1-disk volumes and run a periodical one-way sync is a better solution than one 2-disk SHR volume if your intention is to have some sort of backup. And 2 drive SHR is basically raid 1 anyway. 1 SHR basiert auf einem Linux RAID Management System und wurde entwickelt, um die Speicherbereitstellung schneller und einfacher zu machen als Dec 14, 2023 · A basic mirror setup with 2 indentical size disks (raid1 or SHR) can be accessed even from Windows if you install drivers that can read EXT4 or BTRFS. Systém SHR je založen na systému pro správu RAID v systému Linux a je navržen tak, aby bylo nasazení úložiště rychlejší a snazší než Synology does not allow shrinking of volumes or pools, so there's no way to convert to SHR2 except when adding a disk. This is the major difference. That's a backhanded SHR-2, but will let you fold the hot spare into an SHR-1 array when you get offsite setup. So if your long term aim is to go from RAID 1 to RAID 6, it'll be painful as you'll have to go through RAID 5 first, and SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. if you sue SHR2, you get two drive tolerance and you will loose more space to protection. Generally speaking, a RAID5 volume will have a slightly higher performance than SHR because of the LVM structure a SHR volume has. EXT4, SHR2 vs. The ease and flexibility when swapping drives with SHR-1 vs. If you have mixed-sized drives and you actually want to use all of them in one array and use the storage space, you’ll have to use SHR or SHR-2. 2 HDs redundancy but I can't make sense of what the Synlogy RAID calculator usable/protection space ratios. Another user replies with detailed explanations and examples of storage space, protection, and future expansion options. Regardless, a Synology NAS can fit into most any environment. SHR isn't any more complicated than standard RAID5. It's not yet a perfect backup as if your NAS gets destroyed all data is gone, but at least it would help you recover from situations where you accidentally delete SHR1 + hot spare and SHR2 are not really the same thing as during reconstruction all your data can be lost in scenario one while with SHR2 its still safe as long as only one more drive fails. Is it in SHR2? Also that's your volume, what does your storage pool say? That calculator is for the size of the storage pool assuming SHR configuration. Tanto con SHR como con SHR2 es fácil recuperar los datos de un único disco averiado. SHR-1 vs SHR-2 I have a DS1821+ currently containing 8 x 8TB drives configured as 4 storage pools of SHR-1. I'm confused on this topic. They just spilt up drives to a number of partitions to created a series of arrays to utilize space in the most efficient way. "Synology Hybrid RAID (SHR) is an automated RAID management system, designed to simplify storage management and meet the needs of new users who are unfamiliar with RAID types. Take care. Synology RAID Calculator results are estimates intended to represent new storage pool capacities. You even get the ability to read and restore SHR volumes from non-Synology systems if that edge case ever comes up, you just need a linux machine. Alternatively I could just use the drive independently for selective backups. It uses the Linux md toolset to build the RAID configuration and then used either ext4 or btrfs for the file system on top of the RAID volume. We hope you enjoy the change! Nov 7, 2022 · SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. SHR is quick to use and a financially viable One nice option i can see is using a 5 drive and hotspare setup (assuming synology supports hotspare). SHR can combine different sized drives to create a storage volume with optimized capacity and performance, wasting less drive space and providing a more flexible storage SHR is just Synology's name for mdadm RAID, as found on Linux systems everywhere. Upvote 0 Downvote. Oct 29, 2021 · Also, after reading on SHR, trying to see if there is any reason why I wouldn't just use SHR/SHR2 rather than RAID equiv. SHR your total space will be your total size minus one disk, SH2 will give you two disks. The exact same thing is true for Unraid. Your Synology friend,. Mit SHR können Benutzer eine flexible Speicherlösung mit optimierter Kapazität und Leistung erstellen. This will involve pulling pointclouds from the synology into ram and working on the file locally. SHR is quick to use and a financially viable Nov 7, 2022 · SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. 0. When I set up this volume I used a SHR-2 raid with 4x 4Tb HDD’s. How high becomes a trade-off between what one gives up using an extra SHR disk, the cost of being off-line and what is involved in getting a full retore done from backup (And of course you are doing backups regularly. I've got a 1019+ and I'm running SHR2 on 5x12TB array made of shucked WD externals so I'm expecting a higher failure rate in return for the much lower overhead (180$/12TB, 3 years ago). SHR is a hybrid version of RAID, it lets you have different size disks and it will create the RAID by itself. Do consider a cold spare to have around and maybe rotate into service occasionally though. They are more or less using the exact same technology to pull this off. Aug 17, 2023 · Compare SHR vs. I am reluctant to go from scratch as I have just finished lengthy and detailed configuration process including setup of Docker with few containers. And if you ever want to migrate your drives to a bigger synology you will be able to expand it to bigger drives. I think it's funny that Synology itself says this about SHR. [Drive 2] Ironwolf 12TB HDD SHR btrfs [Drive 3] Ironwolf 12TB HDD SHR btrfs [Drive 4] empty I have an single SSD planing for DSM system packages and docker, sitting on bay 1. USAFRet Titan. What is the better choice regarding data protection I wonder: - initialize the four drives as four separate simple volumes and use these 4 volumes with minio and erasure coding - initialize the four drives as one SHR-2 volume. Como resultado, siempre tendrás más espacio de almacenamiento "utilizable" cuando utilices el SHR frente al SHR2. Par conséquent, vous aurez toujours plus d’espace de stockage « utilisable » lorsque vous utilisez le SHR vs SHR2. in SHR, you get one drive tolerance so in this case, the #1 largest drive (14TB) will be used for protection. I love SHR, and SHR 2 especially. which makes more sense depends on how many drives you have and what kind of data is on the drives, generally a good backup is more important than having Aug 28, 2023 · En revanche, le SHR offre plus d’espace de stockage. Unless you need a hot spare because you do not have quick and easy physical access to the NAS, you are better off with either adding it to the pool as a 2nd parity drive (SHR2/RAID6), or as a cold spare where no wear is being put on the drive. Unraid is just more clear about how this works than Synology which hides this action from the end user. Feb 21, 2024 · SHR Optimizes volume size when combining drives of different sizes. It's slightly less flexible than SHR-1, because when you upgrade drives to a larger size you need four drives of the larger size (rather than two with SHR-1). They will be more than happy with 30TB of storage and I'm assuming RAID 10 should be quite bit faster than SHR and it looks like the failure protection should be about the You’re correct with Synology but it’s because raid-6 is done in software just like shr. SHR-2 provides data redundancy, which is a valuable feature for data protection but comes at the cost of reduced capacity efficiency. Nov 7, 2022 · Synology Hybrid RAID (SHR) ist das automatisierte RAID -Verwaltungssystem von Synology. DISK 1---> WD RED 6TB , File system SHR. 1. 82Tb formatted. For one thing, the R in "SHR" stands for "RAID. Daher werden Sie immer mehr "nutzbaren" Speicherplatz haben, wenn Sie den SHR vs. The original plan was to use RAID 10, and that is probably what I am sticking with. Shr2 is not equivalent in fault tolerance to raid10 (2 vs 1 disk fault tolerance) Shr2 is counterproductive on such a small arrays Shr2 will have horrendous write speed on such as small array, inconsistent with your video editing workflow. The NAS is running DSM 7. Aug 17, 2022 · In your situation, adding 1 additional drive would allow for the conversion of SHR-1 to SHR-2, adding a second drive would expand the SHR array. Synology's docs on changing RAID type says that you can directly convert from RAID 5 to RAID 6, or from SHR 1 TO SHR 2, or from RAID 1 to RAID 5, but not from RAID 1 to RAID 6. Nov 7, 2022 · Synology Hybrid RAID (SHR) je automatizovaný systém Synology pro správu RAID. They say that raid 5 is a bit faster then SHR. Nov 7, 2022 · Learn how SHR and SHR-2 differ from classic RAID and how they optimize storage capacity and performance. The blog article is in German, but you can the gist of it by looking at the charts (schreiben = write, lesen = read). It also provides protection against a single drive failure. SHR umožňuje uživatelům vytvořit flexibilní řešení úložiště s optimalizovanou kapacitou a výkonem. " A blog tested the 4 different combinations (EXT4 vs. A RAID5 can be mounted on a Linux PC or laptop (with a caddy that can access all drives) but it's much more complicated. Nov 7, 2022 · SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. When it comes to choosing a RAID setup, it's important to consider your specific needs and preferences. SHR is quick to use and a financially viable SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. Doesn’t matter with 4 disks obviously, but with 8 full bays, SHR-2/RAID6 you loose two disks for redundancy whereas with RAID10 you loose half of the disks for redundancy. SHR is quick to use and a financially viable With 4 drives of the same size SHR-2 would give you the same available storage as RAID-10, but at a higher level of redundancy, because with RAID-10 you can't lose any two drives. Jman @3jman3000. Synology SHR allows you to mix drives with different capacities in one RAID without losing capacity, which is not possible with the classic RAID. I'll never own that kind of expensive sys but its also fun to talk about. , RAID 1, RAID 5, RAID 6, RAID 10, RAID F1, and SHR comprising at least two drives). As the + models use software raid, it also seems that SHR is a bit more taxing on the CPU . I would recommend just putting in all the drives at once and rebuilding your volume from scratch as SHR-2. I am now trying to find way to change the SHR configuration to SHR2. Its a shame I'm not seeing performance in line with what the Synology Docs show You Sir, are amazing. 4 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0. SHR is quick to use and a financially viable Jan 2, 2013 · SHR vs RAID 1 s. SHR (Synology Hybrid RAID) allows you to use different size drives in your array and gives you more flexibility in terms of drive upgrades and replacements. Simply because it protects similar to traditional RAID when it comes to hardware failures but it is much more flexible and easy to upgrade to larger disks. There's little reason to not use SHR / SHR2 on Synology systems; at best you gain extra flexibility and at worst you just have RAID5 as per usual. Recommend going with SHR2 to begin with if possible (especially if this is your only nas) , requires at least 4 drives as converting from SHR to SHR2 is a time consuming process (note last bay needs to be empty in converting , if changing to SHR2 make sure you press change raid level to add the disk, do not add the disk to the pool) With offsite backup, you only need SHR-1, not SHR-2. and then you'd lose a shit Is this the encryption slowing things down (So the old CPU) or the SHR2 array slowing things down? EDIT: I just tested on an un-encrypted share and it looks like I am getting around 400MB/s, so I guess it is the encryption slowing things done. I am upgrading to a (8) Seagate Exos 18TB disks and so I am going to migrate all my data out of Synology and reconfigure the unit. 5Gbit connection on the 10Gbit card Vs 5x12TB SHR2. At the basis they're using standard Linxu based RAID since Synology OS is based on Linux. 4 Connecting to host 10. However for SHR calculator says: - For 4x 4TB => 12tb available / 4tb protection Oct 31, 2012 · To calculate SHR/2 capacity, imagine the array as composed by sum of standard RAID 6 arrays, so first consider the 3TB disks as were are made of 2TB + 1TB. Doubly so if you haven't copied anything over to your current volume. sidharthnayyar @sidharthnayyar* Jan 02, 2013 2 Replies 2131 Views 0 Likes. Then you get the best of both worlds, performance vs protection. Converting SHR-2 Volume to SHR-1 I have a DS920+ that I am now only using for a HomeBridge server, File Backup for 2 users, and as a shared folder for 2 users. When I attempt to use the menu for changing the RAID type from SHR-1 to SHR-2, it tells me to install more drives but all drive bays are occupied and used for my SHR-1 volume. This storage mechanism allows users to build a flexible storage solution with optimized performance and capacity. If you don’t plan to use to use zoo of differently sized drives there is no benefit in shr2. I calculated under RAID5 It was about 5. Of course - I did not read this before I actually started my conversion. in the future I will have to go through the process of changing from SHR1 to SHR2 or Raid 1 to Raid 6. 10 port 59062 connected to 10. But then you also have the option of marking a disk as a 'hot spare' which basically accomplishes the same thing but in a different way. All files you save onto a SHR / RAID 5 is striped / spanned across ALL of your drives in the SHR or RAID 5 volume. Let's discuss the options: Synology Hybrid RAID (SHR): Pros: 7+1 spare in SHR or 8 and no spare in SHR2 I’m a happy user - great sleeper btw - of Synology 3-2-1 Backup Strategy and NAS in SHR-2, simply because a NAS SHR-2 Hi guys, I now own a synology 420+ nas with 2 16TB iron wolf hard drives (woo!) I’m planning on using the NAS to work with large files. Whilst it matters not whether you choose RAID1 over SHR1 on a two bay NAS, if you want to upgrade to a 4 bay or larger NAS in future, adding extra drives will be a lot simpler with SHR1 (add extra drive, the system handles the RAID migration for you), than it would with RAID1 (backup data and manually recreate). They offer different levels of redundancy and flexibility for managing data, making them popular choices for organizations and individuals looking to store large amounts of data securely. Jun 25, 2024 · SHR (Synology Hybrid RAID) and RAID are both data storage technologies commonly used in Synology NAS devices. Two SHR-1 pools uses two drives for redundancy (one per pool). Jul 6, 2016 · SHR and SHR-2. RAID? Also, at the moment - is there any sort of consensus re: IronWolf vs. Synology SHR actually splits into SHR1 and SHR2 which means 1 drives or 2 drive redundancy. So. SHR indeed is faster, the more spindles you have Since you have a 920+, I'd run in SHR. Also, BTRFS is awesome. Will give you the freedom to expand disks down the line. Once you start to add (or upgrade to) new larger drives, then, as I understand it, SHR will create a new RAID on the larger drives once you have enough of them for the required redundancy, i. If that is too high for the use case, use SHR2. Recommended for beginner users. No, still SHR-2, because you are future-proofing at no cost to you. Sep 21, 2023 · Synologyには独自のSHR（Synology Hybrid RAID）というRAIDがあり、このSHRについてなんとなくでも知っているかどうかで将来的なNASの使い勝手に大きな影響が出てきます。この記事では、基本的な「RAIDって何？」というところからSHRについて分かりやすく解説します。 Apr 30, 2024 · Migrating from SHR (Synology Hybrid RAID) to SHR-2 on a Synology NAS is a process that enhances your data redundancy, protecting against the failure of two drives instead of just one. SHR-2 8tb available = 8tb redundant makes perfect sense. And it will not be a part of a multiple drive RAID in future. If you want to talk more about Synology, do not hestitate to contact me. Jan 26, 2012 · i know how shr works I had already mail from synology. This started as we grew tired of the lack of Moderator involvement in the /r/Synology community, so we decided to take things into our own hands. I think deciding between SHR2 and raid6 is basically as simple as deciding when you want your extra space to show up when you increase drive sizes. SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. Hope this helps. Oct 02, 2022 Report; Hello, Im just installing my second drive on my new synology NAS. With an SHR RAID, regardless of the mixing of the drives, in terms of redundancy vs Capacity, you will only lose 1x the largest drive. I can confirm that is the case, synology have a raid calculator where you add some drives and see what they give you. What would protect my data Aug 30, 2022 · RAID 6 vs SHR2? Omg how do we choose where to begin?. Aug 28, 2023 · Por otro lado, el SHR ofrece más espacio de almacenamiento. ทำ Raid 5 หรือ 6 ซึ่งผมเข้าใจว่าสองตัวนี้ตัวเวลาเสียข้อมูลไม่หาย แต่ผมเห็นเทคโนโลยีของ Synology คือ SHR , SHR-2 อันนี้เวลาเสียมันเสียได้ An SHR2 can increase availability (or better reduces the risk of a non-availability). Could some similar pvresize/mdadm magic be leveraged to grow a 2-disk SHR array to a 3-disk SHR array where the 3-rd disk is SMALLER than disk 1, assuming that there is enough empty space on 1+2? For example 8+8 SHR can't be 8+8+4, because the first was an 8 so Synology made the first partition too large. , SHR-2), the new storage will be available after you add drives or expand existing ones. This took 24 hours. SHR will let you lose one disk and be able to recreate the volume, SHR2 will let you lose two disks. To find out if your Synology NAS supports SHR, refer to the device's Datasheet. RAID 10 is also a concern, albeit secondary to performance and available storage. SHR2 check smart logs make sure you don't have 2 more disks worth of problems and just replace the disk (backup is recommend but shouldn't be needed) with upgrading to a larger disks in SHR2 check smart on each disks for problems and just pull a disk hot and replace it and pick repair (if some disks have problems on smart replace them first Aug 13, 2013 · When you look at the Synology calculator you have a choice between SHR (RAID5) and SHR2 (RAID6). I'm running DSM 7. Nov 23, 2017 · I am using all 3 Synology DS 2416RP NAS …I wanted to test RAID 10 (10 HDD) vs RAID 6 (10 HDD). Use SHR for 4 HDDs in the Synology. other drives for Synology Jun 19, 2019 · Synology Hybrib Raid có 2 loại là SHR-1 và SHR-2, Sự khác biệt giữa 2 SHR này là gì? Synology Hybrid Raid 1 (SHR 1 hoặc SHR) Điều kiện: Có thể chạy số lượng ổ cứng là 1 HDD nhưng không có cơ chế dự phòng sẽ bị mất dữ liệu nếu ổ HDD bị lỗi hoặc hư. Q1. Likewise for parity bits. The process involves upgrading your existing SHR volume to SHR-2, which requires additional disk space. " If you're using SHR you have nearly all the advantages of a regular RAID-5 (SHR-1 with one disk for parity) or RAID-6 array (SHR-2 with two disks for parity) with the added flexibility of being able to swap in different-sized drives as long as the new drives are not smaller than the one you replace. Rebuild time can take so long with HDD sizes these days the primary concern is a 2nd disk failing during rebuild; I've seen it happen in a datacenter. This also avoids the btrfs native raid write hole problems. SHR2 is usually more appropriate for more drives. i. I used the RAID Calculator Tool and got this as a comparison for SHR vs SHR-2 but I am not sure how having only 1 disk redundacy system would work when i have more than 8TB of data. It is a Linux-based RAID system that helps in quicker storage deployment and is easier to set up than traditional RAID drives. SHR-2 to find the best balance between performance and s Feb 27, 2012 · I have a Synology NAS ds211j with DSM 4. SHR is much more flexible than Raid-6 when it comes to disk replacement time. SHR gives you the ability protect your data from 1 lost hard drive and SHR-2 protects you from two. Then calculate capacity of RAID 6 of 12x2TB, and add the capacity of a RAID 6 of 4x1TB. Why would I need hyper backup? Both machines are configured with SHR-1 but I wanted to convert the 920+ to use SHR-2 so that I can use 2 of my drives for protection. SHR2 -is- raid6, with a bit of extra flexibility if you ever want to use larger drives. Disk 2----> 3TB Toshiba, file system JBOD My question is, Do I need to alter the 6TB's file system to JBOD in order to use it completely? Is SHR using any disk space to perform backup operations? Should I just leave it as it is? Jun 15, 2020 · I just bought a Synology NAS with 4 drives. With all disks of the same size SHR-2 behaves exactly like RAID-6, but for future upgrades you only need 4 disks of the larger size, instead all of them. SHR2 is an extension to LVM/mdadm. Before You Start Requirements: A hot spare drive can protect a storage pool when the following criteria are met: The RAID type of the storage pool must support drive fault tolerance (i. SHR is quick to use and a financially viable Nov 1, 2013 · If you just jam in the 6 other drives, yes, you would be stuck with SHR-1. 40. From searching I learned that: Raid 5 = SHR and Raid 6 = SHR2. Is there any difference between using SHR & Basic for the single drive? Does it matter? Q2. I actually did have 4 disks if the same size (4x4TB) and consequently picked SHR-2. Provides data redundancy if the volume is composed of two or more drives. Aug 28, 2023 · Im Gegensatz dazu bietet der SHR mehr Speicherplatz. The download i that SHR is implmented in a way thats considered not best practise (RAID ontop of LVM), which might make data recovery hard if SHR has fromed some complex LVM/RAID configs underthehood. If your disks are all same size — you will end up with a angle RAID6 anyway. The biggest benefits of using SHR is the ability to mix different size drives and still benefit from drive redundancy. SHR2 would use 2 disks as failover devices instead of just one. RAID6 in 1819+ Hey all - currently have a DS1819+ with (8) 4TB WD Red disks in "RAID6" on EXT4 filesystem. I currently have 3x6tb and plan on adding a shucked 12 to give me 18tb usable with 6 tb of dead space and then I have the option to swap one of my 6tb's with another 12tb which should free up that dead 6tb. SHR is a modified version of RAID5, SHR2 is a modified version of RAID6. What would protect my data DS1522+, 32GB, 4x12TB SHR with 2TB nvme read cache, 2. I want to run it solely as a minio S3 server. @adrianyong4136, I looked around on forums searching for SHR/SHR2 failures, but couldn’t find any references. Also SHR levels are simpler to chose - there are only 2 SHR 1 and SHR 2, while in Classic RAID you have many other levels. SHR1 vs. But my question was also witch one needs Home user with a 4 bay Nas, I'll go with raid 5 (SHR) which is the default option. I could indeed look into changing my backup NAS from SHR1 to SHR2 - it would be painful operation as it is fully populated so I would have to basically start from scratch from stored data point of view but for the moment I have enough space on main NAS to transfer the data to to it while I re-do Backup NAS to SHR-2. Thanks, that’s good to know. (At least that's what BTRFS vs. SHR-2 helps prevent that given the odds are much lower that 2 drives will fail in the same time period. Datenwiederherstellung: SHR vs. SHR is quick to use and a financially viable Feb 6, 2018 · SHR and SHR-2. Your decision to use SHR-2 (Synology Hybrid RAID 2-disk redundancy) is indeed a consideration based on your storage needs and backup strategy. Once you get past a certain amount of drives this becomes less of an issue as you eventually start writing faster than data can come over the gigabit ethernet, even with the write penalty. May 22, 2017 · The difference is 54TB of available space using SHR vs 30TB available space using RAID 10. The volume is a formatted part of that storage pool, so it could be as small as 1 TB if you configured it that way. SHR-2 provide 1 vs. If you select RAID 5 or RAID 6, you will only be able to use the total of all drives based on the smallest-sized hard drive. So don't use raid5/shr + hotspare over raid6/shr2. Even if not, there’s no reason to prefer raid6, you should always choose SHR/SHR2. I added the user@synology:/$ cat /proc/partitions major minor #blocks name 8 0 3907018584 sda 8 1 2490240 sda1 8 2 2097152 sda2 8 5 1948684480 sda5 8 6 1953495952 sda6 8 16 3907018584 sdb 8 17 2490240 sdb1 8 18 2097152 sdb2 8 21 1948684480 sdb5 8 22 1953495952 sdb6 8 32 3907018584 sdc 8 33 2490240 sdc1 8 34 2097152 sdc2 8 37 1948684480 sdc5 8 38 1953495952 If 8tb of space is enough space just go with SHR2 but I would set it up as SHR2 to begin with so your not having to transform into SHR2 (witch be raid6), but do note to have more space in the future you have to replace the 4tb with larger disks you have to replace 4 disks (pull one disk and repair, once last disk is replaced available space Nov 7, 2022 · SHR, on the other hand, allows a storage pool to be expanded as soon as two of the drives are upgraded and can form a redundant storage array. Um WHY? If you've got 6x8 on RAID 6, that's 32Tb of potential storage. Jun 17, 2018 · First of all, you are not forced to use SHR RAID on Synology NAS. Jun 6, 2024 · SHR stands for Synology Hybrid RAID, Synology’s automated RAID management system. Synology Hybrid RAID (SHR) is an automated RAID management system, designed to simplify storage management and meet the needs of new users who are unfamiliar with RAID types. I read on the forum synology that there is also a method called shr and I wondered if I had to use this feature much space I actually available? Oct 9, 2012 · I understand from what I could read so far SHR vs. Hot spare means a drive on and gaining wear for no benefit until a drive fails. Feb 28, 2024 · Yes, it is possible to convert your Synology NAS from SHR-1 (Synology Hybrid RAID 1) to SHR-2 (Synology Hybrid RAID 2) without having to move all the data off the NAS. Whereas in a RAID 5 if you mixed drives, ALL of them will be viewed and RAID’ed as the smallest available drive and you still only have redundancy for a single drive. Shr is almost always the right choice. The discussion between SHR1 and SHR2 is borderline relevant, and relatively cheap. I love Synology technology with SHR1 & SHR2 systems. Will I get more storage space using SHR or using RAID5 (must be one of these two types of RAID only). 5 TB of space available in that configuration. New comments cannot be posted and votes cannot be cast. FYI, I have DS212j with 2TB HDD Jun 15, 2020 · I just bought a Synology NAS with 4 drives. Make sure to enable snapshots to protect vs unwanted deletion and cryptoware. 4 drive raid 5 is faster than 4 drive SHR (I don't remember by how much, DYOR). You'd be better off with one pool, with shr-1 for more space or shr-2 for more protection. EDIT: I just added it as a 5th drive. I can only suppose that SHR and SHR2 are a making of Synology with some extra magic in there? Again the same youtuber (HdEozE2gN9I) says that who ever uses Raid 5/6 is stupid. SHR will allow users to handle RAID Synology 知識中心為您提供全方位的技術支援，包含常見問題解答、疑難排解步驟、軟體應用教學，以及您可能需要的所有技術文件。什麼是 Synology Hybrid RAID (SHR)？ I'm always here to help everyone. Récupération de données : SHR vs. Feb 24, 2022 · SHR (Synology Hybrid RAID) is for flexibility. Recuperación de datos: SHR frente a SHR2. 90. If I had 4 drives of 2Tb (unformatted), which is about 1. Archived post. imo, if you have 8 bays, you should do SHR-2 / RAID6 if you do SHR w hot spare, you run the chance of corruption occuring during the RAID rebuild. You can choose to have RAID1 if that is more ensuring. Comparing both these RAID implementation types on Synology NAS's, and why SHR provides significant benefits and provides better value for money from your NAS Apr 6, 2022 · Sorry for this kinds of lame question as I've read SO many posts about how long it takes to convert from SHR to SHR-2. If Synology had hardware raid it wouldn’t be able to do data checksumming and recovery because of the interaction with btrfs checksumming and data recovery using raid parity. SHR is quick to use and a financially viable I realize it is ideal to run some sort of redundancy and am hoping someone can summarize what the best plan of attack is for me? In total I think I need somewhere around 20tb usable disk space for future proofing. This is part II of my previous Synology DS1819+ Setup A-Z where I wanted to try a Raid 10 config vs. I googled around to check which options were better and ended up with BTRFS and SHR-1 (recommended by the Synology wizard), but I read that BTRFS is still unstable when it comes to RAID5 and 6, and SHR-1 is built on top of RAID5 isn't it? Nov 3, 2022 · Synology Hybrid RAID (SHR) is an automated RAID management system, designed to simplify storage management, optimize storage capacity, and meet the needs of new users who are unfamiliar with RAID types. Oct 2, 2022 · Jbod VS SHR vs raid, new drive addition J. I thought that because my drives are using a RAID setup, that would be like my "backup". With other RAID configurations, Unused space indicates space which will not be used, even if the array is expanded. Hi there! We hope you're doing well! We're an unofficial forum for Synology hardware, software news, discussions, and community support. I installed the new HD and the HD is recognized healthy by the storage manager. Nov 25, 2024 · Synology Hybrid RAID vs RAID. The SHR-2 was added as the time difference was not that significant between RAID 10 & RAID 6 (143min vs 151 min). However, it's important to note that this process involves some risk, as any modification to your RAID configuration carries the potential for data loss if something goes wrong. 2. Feb 4, 2022 · New to synology here, and I have a question I hope someone can answer. If one of my drives fail, then my data is on the other drive. My intent was to use SHR2, However upon set-up I seem to have configured it to SHR. 29 Gbits/sec 0 3. 2 things 1. 1 and 10x 16TB disks with a single Storage Pool (SHR) and started conversion by adding the 10th disk. 4, port 5201 [ 5] local 10. I have a ds720+ running SHR. In particular, I'm trying to understand why the OP got this advice above: You already have an SHR volume without redundancy, ergo you can create a 2nd one. the speed of RAID 10, but i haven't been able to find any good performance benchmarks for read and write operations. Also, if you use SHR-2, you can add in larger sized drives. What is your thinking/need for converting to SHR-2? Unless there are high availability concerns and business critical data, SHR-1 with an external backup should be more than adequate. ) I don't see the use case for any home user doing SHR2, but that is a personal The Synology DS923+ is a popular choice for a NAS, and it's capable of handling various use cases like the ones you've mentioned. 00 sec 392 MBytes 3. 1 volume on each giving a total of 32 TB. See full list on onecomputerguy. SHR2 is similar to RAID 6 in terms of fault tolerance. It will not do much to increase data safety, because most szenarios that apply to a SHR 1 apply as well to a SHR2. Toggle Dropdown Thanks Synology. e. This can create some kind of lock-in to the vendor. SHR is a good option if you plan to upgrade your drives in the future or if you have drives of different sizes. My question relates to the performance difference between raid1 and SHR. When I click onto my storage pool and chose "Change RAID Next time probably SHR2 due to the number of drives, but still SHR. I happen to have a DS920+ with four 4TB drives in SHR, and you can expect to have 10. Find out how to create, expand, and change SHR and SHR-2 storage pools on your Synology NAS. I'd like to retain the 250MB/s writes I'm getting over the network. SHR is quick to use and a financially viable With SHR or SHR-2 as your RAID configuration, Unused space refers to storage capacity which may be usable by expanding the RAID array. I have now got to grips with the Synology RAID calculator a bit more and have decided to spend the next week or so re-configuring the system. 00-1. The only reason to make separate storage pools is if you're using a different type of drive for them (SSD vs spinning, or A/V-optimized vs general-use). Bottom line, use SHR unless you really want dual-redundancy (and if your data is that valuable, make sure you invest in good backups and consider a second NAS for HA). Moderator. It also seems like you need at least 4 disks before setting up a as u/junkfoodvegetarian indicated, the largest drive(s) will be used for protection in a SHR. Aug 7, 2021 · Then the performance hit from SHR2 won’t be noticed as frequently. So if you added 2x16Tb drives and mounted them as volumes without redundancy, you could shift all your data to them, convert your existing drives to an SHR volume, *cross fingers*, move data back to them, add the big drives to the SHR volume and add SHR2. SHR is Synology's hybrid way to mix and match drive capacities while minimizing wasted space. There are open source drivers which will do different capacity RAIDs. What I had expected, was Jun 15, 2020 · Hi! Come and join us at Synology Community. You are making some good arguments for solution I did not think about. La récupération des données après la défaillance d’un seul disque est simple, aussi bien avec SHR qu’avec SHR2. Synology SHR is an automated RAID management system that makes storage volume deployment easier than traditional RAID systems. . SHR2 vs. you can't go from one to the other, so with 4x4TB it probably is slightly overkill to go SHR2, but if you ever look into expanding into a larger unit later and want to transplant your disks (say into an 8-bay) you're going to be stuck using SHR with 8 disks unless you reformat. A mix of disk sizes with SHR2 is borderline impossible. SHR is quick to use and a financially viable Mar 10, 2012 · As you seem undecided on the number and size of disks, I think SHR is good for you :) Generally there is no performance penalty with SHR (vs RAID) for the simple reason that if you have three 3TB disks in SHR, under the hood the system builds just a plain RAID 5 array. This is the same question as wanting to go from 4-disk SHR1 to 3-disk SHR1 - it would require some way to have less free space on the volume and pool. Some Synology NAS models have limited support for SHR. SHR2 verwenden. btrfs filesystem, SHR-1 vs. Hello! I recently bought a DS918+ and I'm quite a beginner where it comes to set up FS and RAID. for SHR2 you won't see any usable space increase until you have at least four larger drives(*), at which point SHR will create a new smaller Synology Hybrid RAID is just an algorithm for arranging multiple RAID groups together to use all of the available space. WD Red vs. vyw mcpcx pejoz dlqkoi jexuullt nlwu mazih uyrcu rlbgo ohhcdg