Synology btrfs vs shr SHR is quick to use and a financially viable Jun 6, 2024 · Synology differs from QNAP in data storage and management because the former works with the latest BTRFS with additional support for EXT4 devices, while the latter only supports EXT4. May 25, 2022 · Synology NAS-Systeme bieten generell zwei Dateisysteme an: ext4 und Btrfs. This can create some kind of lock-in to the vendor. Only consider hotspare with SHR2 because your constantly protected from upto 2 drives constantly ,, if 1 disk fails it isn't that critical because you have 1 level of redundancy remaining (bad block repair and btrfs self heal <if Checksum is enabled on all share folders< still works) keep cold spare or just buy one when a disk fails as you still have 1 disk redundancy remaining (goto control En el caso de los servidores NAS de Synology, tenemos la posibilidad de configurar EXT4 o Btrfs, de hecho, en el asistente de configuración de los volúmenes podremos elegir entre uno y otro sin ningún problema. Feb 6, 2018 · Synology Hybrid RAID or SHR, has been around for quite a while now, and though it has not make the big impact that Synology NAS’ Btrfs file system has, it is still an increasing popular choice for many when it comes to protecting their hardware and their data in a Hard Drive enclosure. May 12, 2023 · As mentioned above, when picking between Btrfs vs Ext4 for Synology NAS devices, most users should pick Btrfs for the data integrity benefits that it provides. BTRFS is my choice. BTRFS vs. RAID, including SHR, doesn't synchronize files¹ – it synchronizes disk blocks. synology. Luckily, DSM is on its own partition on every drive, and separate from the storage pools/volumes. RAID5) a while ago. Dec 10, 2023 · Based on the diagram below, Synology has implemented the layers in between the file systems and disks to ensure that Synology has full control to achieve the highest stability. How does Synology's Hybrid RAID (SHR) compare? Is it SHR+BTRFS? Is it like Unraid, but with all the BTRFS advantages, and none of the BTRFS risks? I have a large media server. Also, it seems just “moving” the shared folders from ext4 to btrfs doesn’t enable the advanced Btrfs options such as checksums, compression, etc. 2. For an example of this, I created a VM and made a btrfs volume across three 5GB disks: Aug 17, 2023 · Introduction to SHR and SHR2. May 25, 2023 · Synology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. SHR indeed is faster, the more spindles you have Since you have a 920+, I'd run in SHR. And it will not be a part of a multiple drive RAID in future. Make sure to enable snapshots to protect vs unwanted deletion and cryptoware. 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? See full list on kb. But they might expose different functionality in their GUI to manage the file system. If you would keep EXT4 in my situation please give a vote down. I do a lot of photo/video editing and will Feb 24, 2022 · SHR vs. I have deleted it and created SHR with btrfs. Capacity vs. Please keep in mind that not all Synology devices support Btrfs, so you should purchase one that does, but this is not an option with QNAP. com Let's break this down, SHR uses standard Linux raid (mdraid) on top of Linux Logical Volume Management (lvm2). Other options are Unraid (plus recommended plugins) or OMV+SnapRaid+Portainer+UnifedFS. ระบบการจัดเก็บข้อมูลแบบเดิมอาจมีข้อผิดพลาดที่ไม่สามารถตรวจพบ ซึ่งทำให้มีการส่งข้อมูลที่เสียหายไปยังแอปพลิเค Sep 13, 2018 · SHR is a well-proven system at this point. I'll make a decision based on the majority. With SHR or SHR-2 as your RAID configuration, Unused space refers to storage capacity which may be usable by expanding the RAID array. According to Synology RAID Calculator I should have 37. 3. How does Synol Jun 25, 2023 · No. They are all using the same file system right, BTRFS. Mostly that’s ok for people but when you don’t you get to the end of setup wondering when you get to configure RAID. That's only for standard raid. The entirety of the disk is therefore subject to RAID mirroring – not just file contents and metadata but the filesystem structures as well (as those are just "data" as far as the disk knows); the resync process will just discard whatever upfront formatting you've done and will copy the existing Ext4 Nov 7, 2022 · Apr 20, 2023 - If you have already set up SHR on a Synology NAS server, please remove the SHR storage space before you proceed to create a high-availability cluster with Resolution On the same Synology NAS To create a non-SHR volume on the same Synology NAS and move the data from the SHR-volume to the newly created volume SHR is just Synology's name for mdadm RAID, as found on Linux systems everywhere. RAID for Synology Devices. Nov 1, 2022 · Logic tells me that so many folks out there are using both BTRFS on RAID type setups, be it RAID 5/6 or SHR 1/2, without issue and for years, and on the other hand, caution nags at me that those who express an opinion to the contrary about the use of BTRFS on RAID that I should take heed. Will give you the freedom to expand disks down the line. But ZFS has the benefit of repairing file corruption - important for my photos. SHR is a major benefit of Synology. Synology maintains a list of compatible devices that they have tested and verified to work with their products. EXT4 on Synology NAS Device. 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. Two SHR-1 pools uses two drives for redundancy (one per pool). If I should keep BTRFS on my DS920+, or you would keep BTRFS in my situation, can I have a vote up. Aug 12, 2023 · Synology recommends BTRFS to deliver its SHR data protection solution, but BTRFS has a reputation for an untrusted RAID5 and 6 implementation. You will have to backup, recreate, restore. e. The Btrfs file system on Synology also offers the benefits of Btrfs RAID, including automatic corruption detection and correction. If I was considering as a main advantage of the Synology models over QNAP models that in Synology you have SHR, which could be pretty useful if you mix disks of different capacities and/or not follow a standard RAID disposition. I love SHR, and SHR 2 especially. 3 GB for system and 8. If your DSM version is 7. the volume will fail). Jan 27, 2016 · Hi all, I bought a DS415+ and am in the process of configuring it. Apr 25, 2017 · The Synology Btrfs should not be confused with SHR as Btrfs is more of a file system (that allows replication and/or “shadow copies” within the Synology NAS). With shr type raids there will be one "raid" with the smallest capacity over all disks, and then more "raids" with the next largest capacity that fits all remaining larger drives and so on. P. Synology forum discussion about 32-bit ext3 limits. Jan 2, 2020 · Synology uses this to their advantage, using a number of standard Linux tools, including Device Mapper RAID rather than btrfs RAID. But dm-integrity blows ass for performance and has a poor detection rate, so Synology, from what I understand, hacked it to detect failures using btrfs checksums, but only repair them with Jun 9, 2019 · Your second test case (copy to 1019+ without SSD cache via 1GbE) shows that most people can use BTRFS on HDD without worries, as most people use 1GbE network. Aug 19, 2021 · It has nothing to do with Netger vs Synology vs Buffalo, per se. 1, certain rackmount models can no longer create ext4 volumes, but existing ext4 volumes remain fully functional. Both NAS and Aug 12, 2023 · Synology recommends BTRFS to deliver its SHR data protection solution, but BTRFS has a reputation for an untrusted RAID5 and 6 implementation. 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: The fix for your Synology isn't to complicated to do With roll your own you can use Btrfs in RAID1 allows mixed size disks btrfs RAID1 isn't like your traditional raid1 where it needs to be same size disks, btrfs RAID1 means 1 copy onto 2 disks with most free disk space available (you can do some odd disk mixes like 15tb with 5 5 3 2TB disks to get your 2 copy's ) According to the Synology calculator, This leaves me with 7TB on a SHR setup. I will be using this mostly for my small business, but will also be using this partially for personal/home storage. 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. In OPs case SHR will do: a "raid 5" over 6 disks with 4tb each = usable 5x 4tb = 20tb, plus Hi! Come and join us at Synology Community. RAID6 in 1819+ Hey all - currently have a DS1819+ with (8) 4TB WD Red disks in "RAID6" on EXT4 filesystem. With unraid you'd possibly use zfs snapshot replication. Data deduplication can only run when the volume status is Healthy. You'd be better off with one pool, with shr-1 for more space or shr-2 for more protection. 1, use the Btrfs (Peta Volume) file system instead. May 6, 2022 · Both Synology and QNAP give users the option of using Ext4. I’d use btrfs and would keep backing up like you are planning. Btrfs je moderní souborový systém vyvinutý několika společnostmi, který nyní podporují vybrané modely Synology NAS. Once you‘ve added enough disks for redundancy, all extra disks just add storage space without being used for redundancy. sudo apt update; sudo apt install btrfs-progs. For more information and supported models, refer to this article. 4. I am not a heavy user I only sometimes use big files most my files are important PDF, DOC so yes. Mar 14, 2020 · You might be confusing the file system (BtrFS) with the disk configuration (RAID and SHR). Data deduplication is only supported on Synology SSDs and Btrfs volumes. SHR and regular RAID options work exactly the same way, but the difference is that you can mix a different size drives on the Synology RAID. And 2 drive SHR is basically raid 1 anyway. So that left me wondering: FreeNAS and ZPools or Synology and SHR. And given that you want to mix disk sizes, it's the obvious option. For Synology NAS, you create your RAIDs (1,5,6,10 SHR-1, SHR-2). com/2019/10/04/synology-hybrid-raid-explained-why-it-is-awesome/Synology Hybrid RAID or SHR, Flexible deployment Combine drives of different capacities to create arrays that take full advantage of each drive's available storage with Synology Hybrid RAID (SHR). In Netgear's GUI you can do Balance, Defrag and Scrub operation Synology almost everywhere uses > 1024, but not for the website calculator > 1000 the disks been selected should be in manufacture sold format 1000, but the result part of the Synology raid calculator should be in 1024 to not confuse the user when they looking at dsm (most users are computer novices and don't really understand why 10% of space is going puff) 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. I was leaning towards Synology and SHR for its ability to dynamically add more drives and gain some of the benefits of larger drives before all the drives are larger. btrfs filesystem, SHR-1 vs. The ext4 vs btrfs religious debate is one I will leave to the zealots. Dec 18, 2017 · Synology might choose to use BtrFS or MD for their RAID when BtrFS is used for the FS, I’m not sure which they use. If you could make a speedtest of a BTRFS on HDD via 10GbE without SSD cache, it will show the BRTFS on HDD limits. I am a home-user, and my NAS contains backups of my computers and personal media files. It shares many of the features and functionality of the Synology counterpart, but whereas the Synology DSM software hides all the technical information and restricts actions to a more stable and controlled environment, QNAP and QTS given you the technical information far more readily. Synology went the caching route and lets you mount cache devices onto a block device This is part II of my previous Synology DS1819+ Setup A-Z where I wanted to try a Raid 10 config vs. Dec 24, 2023 · Btrfs supports this feature as of DSM 7. There is literally zero reason to specify RAID5 over SHR. Since that update, the system can lo longer reboot. This list is known as the "Synology Products Compatibility List". RAID 1; RAID 5; RAID 6; RAID 10; RAID F1; Synology Hybrid RAID (SHR/SHR-2) with more than one drive; Limitations: The file self-healing feature is not available for the following conditions: I would consider Synology+SHR the best option if you want to mix drive sizes, don't need huge CPU/RAM, and have enough drive bays. A blog tested the 4 different combinations (EXT4 vs. SHR also supports Synology created functions for keeping your Jun 11, 2023 · The File self-healing feature is only available for shared folders located on a Btrfs volume using the following RAID types: 1. I use SHR-1 and I plan to switch to SHR-2 if I would ever buy a DX513 and expand over 6 drives. Aug 30, 2022 · This is a big thing for me. Have to create new shared-folder on Btrfs, and then probably manually copy/move data back into it. Which Synology NAS models support the Btrfs file system? The next-generation Btrfs file system brings these tools to Synology NAS servers, allowing businesses and organizations to reduce maintenance overhead and efficiently store their data. 4 drive raid 5 is faster than 4 drive SHR (I don't remember by how much, DYOR). I really like the idea of snapshots, so now I'm wondering if I'm wasting my time setting it up as SHR, and should instead be installing DSM 6 beta so I can use Btrfs going forward. i. Oct 6, 2021 · In this regard, both QNAP and Synology options are equal, as they are equally compatible with HDD and SSD. SHR can be considered a "idiot-proof" RAID for Synology NAS especially if you cannot convince yourself to use RAID 5 (on SSDs), RAID 6 or RAID 10 and then add 1 or 2 hot spares. You need to create a storage pool consisting entirely of Synology SSDs and then create at least one Btrfs volume. Aug 25, 2023 · I have 4x3TB disks. Is it normal? Where is the other 400GB? Oct 30, 2024 · Synology vs UniFi NAS – Hardware / Range / Value for Money. With the implementation of BTRFS, Synology gets an edge with added data protection features and recovery advantages. I will try to clarify it. 1 to 7. Dec 12, 2016 · I had a readonly SSD cache on my rs815+ using raid 5 and btrfs. Synology NAS devices are popular for home and small business storage solutions, and the choice between Btrfs and Ext4 can significantly impact their performance and capabilities: Ease of Use and Management: 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. . UniFi’s UNAS Pro is positioned as an affordable 7-bay rackmount solution, with a focus on simplicity and integration into the broader UniFi ecosystem. Now that you can't mount corrupted BTRFS SHR, you can run the below, non destructive command, which will let you get the data from your corrupted SHR drives to your local backup folder. Even with SHR, if your NAS dies you could take the drives out and access your data using a PC (instructions focus heavily on Linux as the OS; unclear if a Windows or Mac system with EXT4 or BTRFS file system support could do this as well). Here's a step-by-step guide to setting up an SHR on your Synology NAS: Requirements: A Synology NAS device. At least one hard drive (though two are recommended for redundancy). Sorry for the late reply, I forgot to say that you need to make sure you chose synology hybrid raid (SHR) originally, if you chose raid0, raid1 or any of the standard ones you will literally have to delete everything and start again or create a separate volume and storage pool and migrate stuff first. If you throw in 4x 8TB drives, SHR is going to create a RAID-5 group with those drives and that's all. " 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. SHR allows you to use two-drives and when you do, it’s basically RAID 1, but most of the time, SHR is used for mixed-size drives in a RAID 5 like configuration. 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. While it is recommended by Synology that you use the products on this list, you are not required to do so. I'm considering migrating my DS415+ from EXT4 SHR-2 (4-disks) to Btrfs. EXT4 Jul 6, 2016 · What is the difference between SHR and RAID? Synology Hybrid RAID or SHR, has been around for quite a while now, and though it has not make the big impact that Synology NAS’ Btrfs file system has, it is still an increasing popular choice for many when it comes to protecting their hardware and their data in a Hard Drive enclosure. 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). RAID, you’re generally comparing SHR vs. A continuación, os vamos a explicar brevemente las principales características de EXT4 y de Btrfs. Synology also offers snapshot replication between synologies. The hardware offered by both Synology and UniFi reflects their differing approaches to the NAS market. If this level of redundancy is not essential for your use case and your data is being regularly backed up both locally and in the cloud, you might reconsider whether SHR-2 is necessary. The option that you select will determine the type of RAID configuration you’ll use on your device, and while you can change it in the future (or “upgrade” from SHR to SHR2), selecting the correct option initially is important. It's not a proprietary disk layout. SHR is quick to use and a financially viable Apr 26, 2021 · Defrag to improve Synology BTRFS performance - Mike Tabor Defrag Synology NAS using BTRFS file system to optimize and improve performance. In the Linux storage world, this is totally possible to do because Linux is flexible, and foot-shooting is allowed. Here's a link to How Btrfs protects your data . The issues with btrfs are when you get outside of the file system capabilities and into the lvm and raid. 2TB available but only 7. If this is your situation, unfortunately there is no direct conversion path supported by Synology. Synology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. SHR is quick to use and a financially viable Feb 8, 2018 · Likewise, QNAP has spent years refining their NAS operating system with QNAP Turbo Station, or QTS. Synology supports traditional RAID and SHR systems, however, in terms of RAID configuration, Synology NAS is better. If Synology was using btrfs RAID, we’d see a btrfs volume on all these disks. Is there any difference between using SHR & Basic for the single drive? Does it matter? Q2. During the transition, I want to switch to btrfs. Once I changed to SHR and btrfs system says I have 8. EXT4, SHR2 vs. However, Synology offers Btrfs as well, which is incredibly important as it can fix corruption from bit-rot automatically. For one thing, the R in "SHR" stands for "RAID. But I assume it is best to do as follows: hyper backup complete system format old HDDs install all 4x HDD in 920 set up one volume btrfs SHR My DS418, with a smattering of 4-12TB CMR drives in BTRFS SHR-1, pegs a 1Gb network connection on reads and writes (~120MB/s). If you’re comparing SHR vs. 0. That worked nicely, until I updated to the very latest DSM 6. QNAP only supports all legacy RAID systems, which must be the same. Synology Hybrid RAID is just an algorithm for arranging multiple RAID groups together to use all of the available space. Being new to NAS, I only recently found out about Btrfs. This post will show you how to defrag your Synology NAS improving sequential reads and IOPS. I guess the only real question now is raid or basic/jbod. Redundancy: SHR-2 provides double redundancy, meaning you can survive two drive failures. What is Btrfs? Btrfs is a modern file system developed by multiple parties and now supported by select Synology NAS models. Use SHR, as it makes changes or upgrades simpler, or in the case of mixed sizes, possible. 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). , SHR-2), the new storage will be available after you add drives or expand existing ones. Also a bit of rsync. การซ่อมแซมตัวเองของไฟล์ Btrfs. Mar 29, 2019 · That being the case, would RAID or SHR be safer? I apologise if I have created confusion on some of the articles. 1. Dec 28, 2020 · Regarding volume choice, considering that you have 3 identical drives, you will not have a different r/w/paratiy setup compared to the conventional RAID5 vs SHR. What is the difference between SHR and RAID? https://nascompares. For arrays with 8+ disks, it's a legitimate choice to use SHR2 (RAID6 behind the scenes) rather than SHR. If you can buy everything at once, TrueNAS ZFS is an ideal solution. I use only synology myself with hyperbackups from one to the other. RAID 5, as it’s the most comparable option. SHR-2 to find the best balance between performance and s One nice option i can see is using a 5 drive and hotspare setup (assuming synology supports hotspare). 2. Plug corrupted SHR BTRFS drives (both at the same time if set as SHR). So as per my post I suspect that a Balance operation is what is required. If you want to expand an SHR with two-drive fault tolerance (i. Oct 18, 2019 · There’s no SHA setting, but there is SHR (Synology Hybrid Raid). How does Synology provide the benefits that If you use SHR-1 and a tyre blows, the trailer (BTRFS) will still function with the 9 other wheels, but you have to replace the tyre as soon as possible, because if another one blows without replacing the first blown tyre, the trailer will lose its load (ie. I can only suppose that SHR and SHR2 are a making of Synology with some extra magic The next-generation Btrfs file system brings these tools to Synology NAS servers, allowing businesses and organizations to reduce maintenance overhead and efficiently store their data. Synology RAID Calculator results are estimates intended to represent new storage pool capacities. Sep 27, 2018 · SHR vs SHR2 and ext4 vs Btrfs. 2 TB a vailable capacity. 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. NAS file system. SHR is an algorithm for creating multiple RAID groups in order to utilize the space most efficiently. RAID 6 vs SHR2? Omg how do we choose where to begin?. I know the migration assistant should not support swapping the drives from old to new DS, but it seems to still work often enough for others. SHR and RAID configuration options. Apr 30, 2024 · Creating a Synology Hybrid RAID (SHR) is a straightforward process, especially if you're familiar with the basics of using a Synology NAS (Network Attached Storage) device. I have a few questions however about this: Q1: If I replace the fault 3TB disk now with a 4TB one now (meaning I am left with 1TB not being allocated), and I add the second 4TB HDD later on, will Synology automatically reclaim the previously 1TB that was unallocated? I think you're misunderstand what exactly SHR is. SHR is quick to use and a financially viable Dec 24, 2023 · Btrfs supports this feature as of DSM 7. I recently purchased a Synology DS1618+ and have three 6TB Seagate Ironwolf Pro drives arriving soon as well. High-capacity storage Optimize your storage for data archives or video management systems (VMS) by creating single volumes that reach up to a Petabyte. The only benefit with SHR will be putting a larger drive in the array and having the benefit of maximizing storage. Ask a question or start a discussion now. Smyslem Btrfs je vypořádat se s potížemi, které se často vyskytují u podnikových úložných systémů, např. From searching I learned that: Raid 5 = SHR and Raid 6 = SHR2. SHR is quick to use and a financially viable Excellent question! What you are describing is called tiered storage (some examples would be AMD Store MI (which is rebranded Enmotus FuzeDrive) and Fusion Drive on MacOS) and no, synology does not support that. As of DSM 7. 8TB free. The next-generation Btrfs file system brings these tools to Synology NAS servers, allowing businesses and organizations to reduce maintenance overhead and efficiently store their data. Hot spare means a drive on and gaining wear for no benefit until a drive fails. Data Scrubbing | DSM - Synology Knowledge Center 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. This gives you two-disk redundancy. Sep 9, 2024 · Btrfs vs. When you’re configuring a new Synology NAS, two great options are SHR (Synology Hybrid RAID) and SHR2. On Synology, they don’t use btrfs for anything but the file system, raid is still using md. I got that part from the OP. A place to answer all your Synology questions. I'm not going to back it up to the cloud. Volumes that are set up with Synology drive versioning are slower, but still nearly 100MB/sec. I had RAID5 and ext4 format volume. So the DRIVE isn't formatted in BTRFS, the VOLUME that is inside the STORAGE POOL is formatted in BTRFS. Mar 20, 2023 · You are far from alone in getting SHR-1, one volume in Btrfs (or ext4 if Btrfs is not supported). Data deduplication requires you to Enable usage detail analysis for the Btrfs volume SHR is exactly RAID5, for pools with 3+ disks. 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). SHR is quick to use and a financially viable It does not matter if you use RAID0/1/5/6/10 or SHR. With other RAID configurations, Unused space indicates space which will not be used, even if the array is expanded. 2-8451-6. The blog article is in German, but you can the gist of it by looking at the charts (schreiben = write, lesen = read). However, there are circumstances (whether you’re using Synology Surveillance Station or simply need an extremely performant system) where Ext4 is the right selection. [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. These are very different things. Also, BTRFS is awesome. There have been , and might still be, severe bugs with the raid. Both NAS and DAS utilise RAID as a form of protection if your using a non btrfs support nas (or using btrfs with share folders Checksum off witch unfortunately is the default on Synology when you create share folders) you have no way to validate the data just a data scrub > raid sync can only be performed and hope data hasn't been Having backups in place between two of the same kind is always way easier than using both synology and unraid or any dissimilar products. odolnost proti selhání, správa a ochrana dat. As the + models use software raid, it also seems that SHR is a bit more taxing on the CPU . Not relevant to Synology nas as they use btrfs (single data/dup for metadata) on top of mdadm/LVM raid they did some tweaks to btrfs so it can talk to the raid layer to allow self heal to still be attempted Data scrub works fine (triggers a btrfs scrub first if Checksum is enabled when you create the share folders, raid sync afterwards) Btrfs RAID can be trusted about as far as I could throw Andre the Giant with no arms, so Synology uses mdraid's dm-integrity mode to detect errors instead. Though as a point of note, it is a touch slower than traditional raid. Choosing a legacy filesystem like ext4 over a modern copy-on-write system like btrfs in 2018 because you're afraid of losing data seems like madness to me. I guess most people use DS220+ or similar 2-bay devices w/o SSD cache. S. 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. Daher stellt sich bei vielen die Fragen: Welches ist das richtige Dateisystem für mein NAS? Um das genau beantworten zu können, ist es hilfreich zu wissen, was ein Dateisystem genau ist, welche Dateisysteme es generell gibt und ob sich für den Privatnutzen ein anderes Nov 25, 2024 · Synology Hybrid RAID vs RAID. Q1. 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. This brings up a question, how big is the VOLUME you currently have as EXT4? Is there space to make a new BTRFS volume? If you migrate the shares from one volume to another, you are moving the files from from an EXT volume to a BTRFS volume. jatypdvt kpun snx ylqx isfj angxvm cqt htgni tqvlin hxa