Synology change btrfs to ext4. 4Tb available The goal is to convert fully to btrfs.

Synology change btrfs to ext4 I want to reuse the 6TB drives. Questions: Does the volume name impact the current settings? Example, is Synology office aligned to volume1 or does it not really matter? Will I need to reconfigure Synology Office? Nov 30, 2022 · Synology actually makes this part fairly easy. As well, it was not clear how much downtime there would be Nov 26, 2023 · I opened a support ticket and Synology informed me they have silently dropped support for EXT4 in DSM 7. 2 (brings a significant shift in the file system landscape for its NAS devices. Dec 27, 2023 · Btrfs is a modern copy-on-write filesystem for Linux that comes with advanced storage management capabilities not found in traditional filesystems like EXT4. So, I backup array 1 to 2, Delete array 1. - fail Don't you just love having options? Anyhow Nov 17, 2021 · I have all my music and photos on 1 volume on SHR, on ext4 with 2 disks. . As of DSM 7. Restore Folder and Packages through Hyper Backup from Volume3 to Volume1. 1) i was afraid of directly migrating my disks so i decided to use the migration assistant. If you have further questions or concerns please let me know. In your case it is specific: How do I change an ext4 volume to a Btrfs volume? Be safe. My current setup is 2tb and 4tb on 2 separate pool both on ext4 system. Can I reformat array 1 to btrfs at this point? Upon reformatting, restore from 2-1. Thick Provisioned LUNs. Jan 18, 2023 · I am going to buy a new Synology Nas. I ended up completing the migration last week, without having to use a backup copy. Aug 25, 2017 · Yes, ext4 as well as btrfs supports shrink. Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). The file system is shown as ext4. We’ll compare Btrfs vs. On a 716+II with BTRFS you can backup for sure physical Jun 4, 2018 · Based on some good feedback in another post I made, I am making the following upgrades: Present 2x2TB hd RAID 1 ext4 Target Setup 1x6TB 2x2TB SHR Btrfs What is the best way to migrate from the present setup to the target setup? Do I simply break the existing RAID & copy data to the new 6TB that is Btrfs, then add the 2x2TB? How can I migrate permissions & related? Directory organization will Dec 4, 2023 · Synology DSM 7. Jul 12, 2024 · I rebuilt the entire NAS and selected SHR with Btrfs for volume 1. But how to convert an existing ext4 file system of your current Synology system to btrfs? Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). 1 Sep 12, 2022 · The instructions indicate to simply to remove the EXT4 volume and then create a new volume with btrfs setting. 2 起支援此功能。若您的 DSM 版本為 7. ) May 19, 2019 · When done, delete storage pool1 - volume1 and create a new BTRFS storage pool1 and volume 1 again. I would like to confirm if I have a decent handle on changing to btfrs. For more information and supported models, refer to this article. 1: This is actually expected behavior for your model on DSM 7. 1 至 7. Snapshots: […] Feb 13, 2021 · I would like to change the EXT4 format of the 5x6 array to btrfs. Sep 2, 2022 · Btrfs Is a modern filesystem that combines a file system based on the COW (copy-on-write) principle for Linux systems. 0. The migration also works with only one device. 2. Dec 1, 2024 · 由于一旦创建存储空间后无法更改其文件系统，我们建议以下替代方法：在将数据从 ext4 存储空间传输到新创建的 Btrfs 存储空间之前进行备份（反之亦然）。 Aug 13, 2025 · Am I missing any steps? The ext4 to btrfs migration procedure is described in the Knowledge Center. Dec 1, 2024 · Puisqu'il n'est pas possible de changer le système de fichiers d'un volume une fois qu'il a été créé, nous recommandons la méthode alternative suivante : sauvegarder les données d'un volume ext4 avant de les transférer vers le volume Btrfs nouvellement créé (et vice versa). This file system aims to implement advanced features such as repair, fault tolerance, and simplified administration to Linux file systems. So I wrote down both ways. Apr 10, 2022 · I'm trying to create a btrfs volume in DSM 7. Instead, rely on the instructions found directly within the Synology Knowledge Center. Oct 18, 2019 · Today I switched from a Synology DS215play to a DS918+. Btrfs is available on selected Synology NAS models. Once again, Synology NAS provides a Knowledge Base article to help you choose. Metadata is mirrored for redundancy. The key benefits you get with Btrfs on Synology NAS are: Data protection: Checksums verify data integrity. I made a mistake now by adding the 2 new drive to my 2tb storage pool and there are being checked now. Jul 26, 2022 · I wanted to switch from EXT4 to BTRFS on my DS220+ (DSM 7. With ext4 only offline shrink is supported (filesystem must not be mounted) using "resize2fs ". Synology NAS devices have native support for the Btrfs filesystem. Is this possible without going the route of hyperbackup? Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). Thank you, Malachi | Support Engineer This is despite Synology Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). So the DRIVE isn't formatted in BTRFS, the VOLUME that is inside the STORAGE POOL is formatted in BTRFS. Awhile ago I was looking for advice on how to migrate an ext4 volume to btrfs on my 920+. No easy way - if you're very comfortable using the commandline and probably not getting support from Synology, you can force btrfs to work on that device - google will find you instructions if you're brave enough. "not supported: ext4 does not support snapshots. 4Tb available The goal is to convert fully to btrfs. My question is, is there any way to swap from ext4 to btrfs without loosing data? Or the most convenient way? Thanks Apr 21, 2011 · Is it possible to convert btrfs to ext4 without losing data? I'm experiencing a very low speed on read/write operations on btrfs. I documented the process and wrote up a blog post for anyone that is considering the same thing. I have a DS220+ on ordea andI want to switch to BTRFS. Is this the way to go or I have to do data transfer externally and erase and re initialize to btrfs? Oct 15, 2020 · My Synology was running the ext4 file system on Volume1, so the process to migrate two all new drives and an all new file system was very manual, but very possible: Use a spare slot and add one drive. Oct 14, 2017 · 不 過 可 惜 的 是 ，在 synology 上 ，還 沒 有 可 以 把 ext4 的 volume 直 接 convert 去 btrfs 的 工 具 ，所 以 過 了 這 麼 多 時 間 ，我 也 一 直 沒 有 嘗 試 去 把 我 的 DS415+ 升 級 到 Btrfs。但 最 近 ，我 想 整 合 一 些 硬 件 資 源 ，想 把 一 些 windows 的 virtual machine 移 植 到 synology 上 面 跑 。在 DS415 Jun 25, 2019 · Fantastic! Here is what i know of this crapstorm: Run VM's and Docker on an ext4 volume? No. And given that you want to mix disk sizes, it's the obvious option. For we works great for File Server (SMB mostly). Aug 19, 2024 · It seems like BTRFS is the future on Synology systems so it probably to makes sense to do this while I'm switching to new hardware, especially after reading about the tortuous path to do an "in place" migration from EXT4 to BTRFS. My old Synology has Ext4 format. I would like to both upgrade both volumes to a larger hard drive whilst migrating all my files over AND see if I can use this opportunity to convert to BTRFS with the new hard drives. What is the RAID implementation for Btrfs File System on Synology NAS? - Synology Knowledge Center Synology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. In the process, I want to keep my Synology settings, but I'd also like to keep my dockers properly setup. Btrfs should be shrunk online using "btrfs filesystem resize " (didn't test, yet). May 17, 2023 · How do I change an ext4 volume to a Btrfs volume? How do I migrate data between Synology NAS (DSM 6. 1，請改用 Btrfs (Peta Volume) 檔案系統。若要了解更多資訊及支援的機種，請參閱 此文章。 部分機架式機種 自 DSM 7. Am I right in thinking I can move all the apps across to this new volume, remove the large ext4 volume and then expand the 10. 1, use the Btrfs (Peta Volume) file system instead. For most general purposes, BTRFS is the best choice; where performance is paramount, EXT4. 2-x) but it does support 7. 1) 2-bay. BTRFS will already be the default in new setups. Avoid spammers. (~8hours to complete) Jan 2, 2021 · I currently have a DS1819+ with only 4 - 4TB drives in it with data on its configured properly for me running 1 Volume (Volume 1) for all the drives. As btrfs has advantages over ext4 like error correction, self healing, I would like to change from ext4 to btrfs on my ds1815+ and be ready for drive migration to new NAS in case the present hardware breaks. But now I still have the old EXT4 file system. Thin Provisioned LUNs created on a Btrfs volume. As well, it was not clear how much downtime there would be Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). The guide's documentation is light with regard to the migration of (a) packages (b) package data and (c) configurations, and left me with questions. @database - I think this is used by multiple packages but the heavier may be Synology Drive specially in an EXT4 filesystem. Is it that simple? Does Synology have a guide for doing this? I could not find one. I would like to continue to use JBOD to maximize the storage Wondering whats the easiest or quickest way to convert file system from ext4 to Btrfs? If my assumption is right, I should create new volume #2 and set that as Btrfs. I had a hot spare in my 5 drive NAS so I removed it to make a spare slot. " And I read you have one Volume ? Because a Volume can only have one file system, as you know too. If you want to keep the images here's how to perform the conversion. So, are you very sure you have only one Volume ? Is there any method to, let's say, "convert" ext4 shared folders to something that is supported by snapshot replication? No, there Jun 8, 2022 · Will I need to remove this drive Absolutely. RSYNC has nothing to do with the filesystem used. Synology article on converting EXT4 to BTRFS I have, for now, bought a USB SATA enclosure and attached 1 of the 8TB disks via USB and am backing up via Hyperbackup as per the article above. The 3x10 array has enough room to backup all of the first array to it. Hello, i have a synology ds216+ with 2 8tb Disks ext4 i recently bought a ds920 and 1 more 16tb disk i wanted to move my 2 old disks to the ds920 and add the 16tb and migrate to btrfs. This article delves into the specifics of this update Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). It seems you don't want to put old disks into new devices, so what's the point of your question? I don't see the upgrade EXT4 to BTRFS in your scenario. No, DSM does not support this in WebUI (actually, Synology does not officially support this at all). I am a home-user, and my NAS contains backups of my computers and personal media files. As far as i know with EXT4 you can't backup PC (I never tried with a physical server). I've tried to connect it to a ESXi host and the connection works but I never tried to backup a VM. If I delete the EXT4 volume, create a new volume with the Btrfs file system, and then restore everything using Hyper Backup — will the restored system preserve the Btrfs file system, or will it revert the volume back to EXT4? How do I change an ext4 volume to a Btrfs volume? - Synology Knowledge Center Synology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. Ext4, let’s look at exactly what each file system offers users. I go to Storage Manager and click on the storage pool, then Create, then Create Volume. 1 起已無法建立 ext4 儲存空間，但既有的 ext4 儲存空間仍可正常使用。 Oct 13, 2015 · I'm considering migrating my DS415+ from EXT4 SHR-2 (4-disks) to Btrfs. 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. 2 Update for RackStation Removes EXT4 Support Synology’s latest update to DSM 7. Starting fresh with all the drives inside, those will be wiped, and configured on the new BTRFS system (by default) unless you choose EXT4 (keep in mind that some packages will have a BTRFS as a requirement!). recreate and restore from backup is all. Data is about 8TB. DS920+ running DSM v7. I insert the 16tb I chose ext4 because it matched the DS410J I have and because I saw merit in being able to read an ext4 drive out of the NAS in case of total failure. 1. - Buy a new two-bay NAS which supports Btrfs. Jan 18, 2018 · Now, If you want to use Docker on Synology, you have to switch to the new filesystem Btrfs. If yes, how do I do it? Jan 21, 2022 · Hi! Come and join us at Synology Community. I have limited options for external backups for the current contents. Best Strategy to migrate from EXT4 to BTRFS? I have a DS-918+ with 3 6TB drives and my single EXT4 volume is ~43% full. Dec 15, 2019 · I'd like to take advantage of this process to switch from EXT4 to BTRFS, mainly for the snapshots feature in Hyperbackup. - fail btrfs volume on external USB or ESATA port? No. and I really want to changes to BTRFS Jul 23, 2020 · So I decided to return my DS220J to Amazon, it's too underpowered even for basic tasks. At this point I have my 4x2TB and 1x10TB in slots. Does it not apply to your need? The next-generation file system Btrfs ensures a high level of data integrity while taking advantage of flexible, efficient data protection and recovery tools. If I delete the EXT4 volume, create a new volume with the Btrfs file system, and then restore everything using Hyper Backup — will the restored system preserve the Btrfs file system, or will it revert the volume back to EXT4? Dec 24, 2023 · Notes: Btrfs supports this feature as of DSM 7. My existing array is a Raid 1 ext4 partitioned. As I see it my alternatives… - Run Btrfs on DS1618+ and ext4 on DS211+ and live with any issues or limitations. I tried the Synology Guide , but I was not sure how to proceed when step 1 (3) told me the volume could not be removed. Jan 24, 2025 · I have Fedora installed on my laptop, but I installed \\home with ext4. This update enforces the creation of BTRFS filesystems on Rackstation models which support BTRFS. - fail Can not downsize the ext4 volume to make space for a new, small BTRFS volume. Ask a question or start a discussion now. 注意事項： Btrfs 自 DSM 7. Aug 6, 2025 · I want to migrate to Btrfs. If your DSM version is 7. What is my best migration procedure? Aug 6, 2025 · I want to migrate to Btrfs. The volume is EXT4. - Change the file system on the DS1618+ to ext4. plex). Jan 20, 2024 · The DS413j is using ext4 file system and I would to use Btrfs on the new DS1522+. I bought 2 new 4tb drive and added them into the slots. There's no way to convert in-place to ext4. This update not only enhances the functionality of the Storage Manager but also marks a crucial transition from EXT4 to BTRFS file systems for many of its models. 4Tb volume to the fill the vacant space? If so, can anyone advise how to move the apps across? I've backed Dec 24, 2023 · Notes: Btrfs supports this feature as of DSM 7. g. …what would you recommend I do? Dec 4, 2023 · Synology DSM 7. I click Next and I'm asked to confirm the settings. 1 to 7. I would like to know if there is any way to convert, or just format \\home to BTRFS and later allocate it as \\home again. Aug 3, 2020 · Dear all, I need some advice on how to best migrate my file system (ext4) to btrfs. Dec 1, 2024 · Aangezien het niet mogelijk is om het bestandssysteem van een volume te wijzigen nadat het is aangemaakt, raden we de volgende alternatieve methode aan: maak een back-up van de gegevens van een ext4-volume voordat u deze overzet naar het nieuw aangemaakte Btrfs-volume (en vice versa). There is a mix of digital photos (rarely changes) TimeMachine backups (always changing), Videos (rarely changes) and work project files (small and large, some of which change often, some of which don't. Hyper Backup has an “Entire System” backup feature. And then delete and reinitialize the drives from old volume to new one. Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). If I format the new Synology Nas as Btrfs, how do I move the files from the old Synology to the new Synology. If I delete the EXT4 volume, create a new volume with the Btrfs file system, and then restore everything using Hyper Backup — will the restored system preserve the Btrfs file system, or will it revert the volume back to EXT4? How to change from ext4 to btrfs? Hi, I’ve got a 920+ with 3, 3TB disks and yesterday I was testing to create a vm for the first time and to my surprise apparently vm only supports btrfs as storage pool. 4Tb, then move all the apps across to this new volume, remove the large ext4 volume and then expand the 10. IMO, btrfs is worth the extra expense of a + NAS - the checksum and data scrubbing makes the RAID Dec 5, 2024 · Recently the mods of this community cautioned against that stating that such posts will be deleted (they are inherently risky). Da es nicht möglich ist, das Dateisystem eines Volumes zu ändern, nachdem es erstellt wurde, empfehlen wir die folgende alternative Methode: Sichern Sie die Daten von einem ext4-Volume, bevor Sie sie auf das neu erstellte Btrfs-Volume übertragen (und umgekehrt). Steps if you haven't changed your DiskStation Backup your data! If you switch to a device with new 儲存空間一旦建立完成之後，便無法再改變其檔案系統。建議您使用以下的替代方法：先備份 ext4 儲存空間內的資料，再將資料還原至新建立的 Btrfs 儲存空間，反之亦然。 Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). 4Tb volume to the fill the vacant space? Apr 24, 2022 · If as part of the migration to btrfs you also want to update your Docker storage driver (from AUFS to overlay2 or btrfs) a direct copy won't be enough. I have wanted to transfer the data from ext4 to btrfs for the better reliance against bitrot. Move data from volume 2 to volume 1, destroy storage pool 2 and add disk3 to storage pool1 and expand. Nov 24, 2018 · I don't think it's possible to convert btrfs to ext4, right? Can someone please confirm? I believe I will need to reformat the drive in the synology nas box to ext4? I'm looking to break a RAID1 mirrorred volume so that I can reassign one of the slots to another volume. Nov 17, 2021 · I have all my music and photos on 1 volume on SHR, on ext4 with 2 disks. The benefits from Btrfs far outweighs the drawbacks. Ext4 is fast and rock solid, and easily recovered on a desktop machine if things go really bad. I now realise all the advantages of btfrs. This update not only enhances the functionality of the Storage Manager but also marks a crucial transition from EXT4 to BTRF Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). The COW principle implemented here means that when data Jul 8, 2020 · I currently have a DS220+ that I just got new hard drives for. Sep 13, 2018 · SHR is a well-proven system at this point. Navigation via media server menus are really slow and many other limitations. 4Tb volume to the fill the vacant space? Aug 3, 2020 · Dear all, I need some advice on how to best migrate my file system (ext4) to btrfs. then once created i just restore data from backup and reinstalle packages not backed up (e. A place to answer all your Synology questions. 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. Perfect time to change the file system - the DS215play didn't support Btrfs. Aug 25, 2020 · I use my NAS almost only for storage so reliability and security is my main criteria's - not speed. I want to change from current ext4 to btrfs system and I was wondering if I can add one more 18TB drive and create a new storage pool with btrfs, transfer my data from current volume to the new one. Btrfs is a bit slower with writes because of its Copy-on-write nature, but just as fast when it comes to reads. 2 Update for RackStation Removes EXT4 Support Synology's latest update to DSM 7. At what point could I have chosen btrfs insted? Jan 19, 2021 · Dec 1, 2024 - has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs Notes: The Btrfs file system is only available on specific Synology NAS models. Ext4 in further detail below to determine which file system is best! Before looking at Btrfs vs. LUN types with different features will be displayed in different colors: Thin Provisioned LUNs created on an ext4 volume. I want to change it to Btrfs so that I can use extras features like snapshot replication and active backup features. Oct 9, 2018 · I've actually installed active backup on a 713+ that I normally use for backup. Paul Dec 24, 2023 · Notes: Btrfs supports this feature as of DSM 7. Jan 3, 2025 · Which file system to use on your Synology NAS? There are two options, depending on DS model – EXT4 or BTRFS. May 5, 2025 · Alternatively, Ext4 has benefits like stability, performance, and reliability (from being a tried and tested filesystem). 1, certain rackmount models can no longer create ext4 volumes, but existing ext4 volumes remain fully functional. In its design, Btrfs provides high performance and supports large storage servers. 1-42218 4x14Tb HDD Volume 1 = ext4 27. For each shared folder, edit its settings and change the volume from the ext4 volume to the new btrfs volume. 0 and later)? Does that answer your question? Dec 5, 2024 · Recently the mods of this community cautioned against that stating that such posts will be deleted (they are inherently risky). I set the allocated size to 1000GB. How can I do this without Migrating the old drives over from the old DS411j went without a glitch. How do I do that? I don't really care about the data in one of the two drives from the soon-to-be-broken RAID1 because I LUN Before creating a LUN, you need to create a volume first in Storage Manager. Dec 1, 2024 · Since it is not possible to change the file system of a volume once it has been created, we recommend the following alternative method: backing up the data from an ext4 volume before transferring them to the newly created Btrfs volume (and vice versa). May 7, 2023 · The goal is to convert fully to btrfs. Am I right in thinking I can create a new btrfs volume of 10. 2Tb 10. Aug 13, 2025 · Select the file system btrfs. Since migration seems to be difficult due to the lack of EXT4 ⇒ Btrfs conversion possibilities; and also considering that Btrfs is a pretty new system which I've read isn't entirely stable, I would like to get some advice on whether Dec 24, 2023 · Notes: Btrfs supports this feature as of DSM 7. - fail No way to convert the large volume from ext4 to btrfs. Your 1513+ as a device will not support the current DSM (7. I have 2 bays currently both filled with 2x 4tb ironworlf disks. whas mpvbmq ssaxb gyxa mcw xcrtlr ibgz nihgy fhtxut jvx koto wrojwg rxh iyyv oex