Make sure that you have enough drives to create a RAID 6 storage pool: 1. In the BTRFS mode, snapshots are taken using the BTRFS file system. Select a time range no shorter than a week by specifying the start and end date. So if for example I have recently added or changed a lot of data the size. People bash btrfs, but Synology has been using it as their main filesystem in their low. Your data in safe hands with Btrfs 1. At Synology, we are committed to product innovation and quality. You will have to ask them if and when it deletes snapshots. Balance the pro and contra: +BTRFS: Snapshot replication, probably only needed if you need the uptime and flexibility in business applications and sent the snapshots to other NAS. It appears that HyperBackup makes a btrfs snapshot of each share, backs up from that snapshot, and then removes it upon completion. Btrfs is a modern file system designed to safeguard data integrity through metadata mirroring, file self-healing, and fast snapshot replication. The snapshot exists in the real root of the filesystem, which is not what you have mounted in /. Download Datasheet. Here are two useful commands for you to contemplate: sudo btrfs qgroup show /volume1 sudo btrfs subvolume list /volume1. arch_maniac. You can see the number of snapshots taken within the selected time. We also provide useful information about Btrfs or EXT4 for Synology NAS devices and how to recover lost data from Synology NAS Raid drives. Read and follow the instructions on the pop-up window. Synology DiskStation Manager (DSM), the operating system that powers the DS223, leverages the self-healing Btrfs file system to protect your data from corruption while providing the option to roll back accidental or malicious changes, thanks to the snapshot technology. HD-series. FS-series. The Btrfs file system cannot repair the damaged data. The copy app is if you regularly load/unload photos or anything else transient so it. FS-series. To check the space consumption of snapshots: 1. The original data is read from the layer where the file currently exists, and only the modified blocks are written. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. 2 SSD slots that support Synology SSD Cache technology, allowing you to reduce random I/O response time 20 times compared with spinning drives without occupying front drive bays. Table of Contents show. When mounting the external device these mount options are honored. Creating a 1 PB volume. Btrfs is a copy-on-write (CoW) filesystem for Linux aimed at implementing advanced features while focusing on fault tolerance, self-healing properties, and easy administration. ; In the Set Replication Schedule page, select Immutable snapshots and set Protection period. A BTRFS subvolume is a part of filesystem with its own independent file/directory hierarchy and inode number namespace. On some systems they do take up a minuscule amount of space for storing file references. Btrfs allows you to take a snapshot before starting the backup, and by copying the data from the snapshot instead of the current data that has. Note: You can press and hold Ctrl or Shift to select multiple items. Click Delete to confirm the removal. However, Synology offers Btrfs as well, which is incredibly important as it can fix corruption from bit-rot automatically. If more than one snapshot version exists within a time range, only the earliest one will be kept. In rare cases you might want to delete files from snapshots. Unfortunately this inhibited the use of snapshot & replication. 8. Also, the speed issue depends on usage. Snapshot replication takes things a step further and allows you to replicate a folder with snapshots to a different Synology NAS (or locally). Open the Snapshot Replication. If the Btrfs filesystem is used on a Synology NAS, and the filesystem is mounted to a Linux server with NFS, is it possible to create a Btrfs snapshot from the Linux server at the command line? I'd like to automate a process of creating a snapshot, processing, and deploying changes. 2: Buy a cheap second Synology NAS like the Synology DiskStation DS216j. snapshot 0 is a pseudo-snapshot that is your root subvolume. As we can see on the image, there is a list of all available snapshot points. On Synology its per share folder so not sure if that is any different (Synology has a 256 snapshot limit per share folder). You can create snapshots almost instantly, and initially they consume virtually no additional disk space. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Note: You can press and hold Ctrl or Shift to select multiple items. Hello, We have two synology (uk1 and uk2) which were both on DSM 5. waiting for the next scheduled replication to take a new snapshot. Thinking that we can purchase an RS815 and replicate the backups to that. Find it under Download Center > your model > Documents > Product Specifications . Select a shared folder and click Snapshot > Calculate Size. Finally found the solution: under "Storage Manager" > "Global Settings" the "Space Reclamation Schedule" was set to a small time window (outside my current day/time). Depending on the functions supported by your Synology NAS, Snapshot Replication helps you accomplish the following tasks: Take and manage snapshots of shared folders and. Thinking that we can purchase an RS815 and replicate the backups to that. Any snapshot protection only gets you so far in case things go really bad (but with the raid setup to protect against disk failures and btrfs snapshots that might be very helpfull to protect nicely against a ransomware attack, that is still a good start). FS-series. Using the synology btrfs does not report the "invalid tlv" and is a bit noiser but seems to work the same as default Ubuntu version. Cloning an entire shared folder is quick and easy with Btrfs. Select Immutable snapshots and set Protection period. File system scrubbing: This function checks the volumes in the Btrfs file system. (I did not down vote your comment about snapshots or encryption even thought Synology does let you use snapshots with encryption) No if your thinking of restoring individual files from the encrypted file (can't work because the encrypted files are on top of btrfs as like another filesystem due to the way Synology implemented it)Btrfs: We recommend selecting this file system because it supports advanced features, including shared folder snapshots and replication, shared folder quota, and advanced data integrity protection. Creating a 1 PB volume. Reply more reply. The advanced Btrfs file system helps safeguard data against corruption through file self-healing and allows for the reversal of unintentional or malicious changes through fast snapshot technology. Unless you're in the directory where the snapshot resides, then you can just specify the snapshot name. BTRFS & Snapshots on Synology Question Hello, Could someone please answer me a question in regards to BTRFS on synology? Lets say I have a a shared folder crated in. Main features: Data protection features, including snapshot, replication, and point-in-time recovery. Thinking that we can purchase an RS815 and replicate the backups to that. Modifying existing files: Updating an existing file in a container is a copy-on-write operation (redirect-on-write is the Btrfs terminology). The shared folder must be located on a Btrfs volume. With btrfs snapshots, assuming I'd taken a recent snapshot, restoring that much data would have been a matter of seconds. It functions just like the -d option does for creating a regular directory: # useradd --btrfs-subvolume-home student2 Create subvolume '/home/student2'. Make sure checksum is enabled on all share folders, if not you effectively have a J type nas no filesystem level data protection (btrfs checksum off works same as ext4 but with snapshot support but no data verification or self heal)I want to add an external USB btrfs volume for Time Machine backups, but I have not discovered how. I am looking into BTRFS (seems like snapshot is the biggest benefit). 0. For each shared folder, edit its settings and change the volume from the ext4 volume to the new btrfs volume. tmp; mv -f foo. Shared folders located in volumes using the Btrfs file system LUNs created as Standard LUNs with storage acceleration or Advanced LUNs Snapshot Replication has defined. This article will show you how to create a Btrfs volume and work with Btrfs snapshots on your Synology NAS. I myself am using synology since 2016. Another key difference is that Synology offers users the ability to use Ext4 or Btrfs, while QNAP is limited to Ext4 at this point. FS-series. Hyper Backup supports both the EXT4 and the Btrfs file system, but the format of the backup data is not readable. Two FS3017 units have the speed and scalability to effectively analyze winemaking data and provide high-performance IOPS optimized for virtualization environments. Backup important data. BTRFS snapshots are by default on: /volume1/@sharesnap/ [folder] / [timestamp] Timestamp look like this: GMT-07-2018. If it still doesn't work after waiting for a while, you can try to delete the Synology snapshots directly. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. The Synology DiskStation Manager (DSM) operating system that powers DS423+ uses the advanced Btrfs file system, which safeguards your data against corruption and allows for the reversal of any unintended or malicious changes through the use of snapshot technology. It works on my Windows, Linux VM, and iPhone. Freeing up volume space by deleting snapshots. Funkce Snapshot Replication (dostupná u modelů Synology NAS podporujících Btrfs) obsahuje možnost pořídit snímky na požádání nebo nastavit pravidla plánování a uchovávání. In the storage manager I see the values "Reported 6. So, likely it will work. Click Remove. 25. Maximum number of snapshots per system: Memory exceeding or equivalent to 2 GB (factory-installed): 65,536. You should be able to. I believe ext4 is faster than btrfs generally speaking, but it of course matters what and how you will be using the file system whether than difference is significant. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Synology Backup SuiteHardware-Assisted Data Transfer: Data transferring can be done quickly on your Synology NAS without taking up the resource of the hosts when copying data on VMware ESXi and Microsoft Hyper-V hosts. corruption through file self-healing and allows for the reversal of unintentional or malicious changes through fast snapshot technology. Delete the 4tb drive. Click Snapshot > Snapshot List. Ok after 4 days of trying to figure this out I think I finally got it! I ran the command: btrfs filesystem reclaim-space -S /volume1 -r It took a little while to run, and afterwards nothing looked different. touch foo. It took a long time to write the data but it was pretty easy overall. Now you can use the Active backup for business. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing. Subvolume sizes don’t have to be cumulative. 993×870 102 KB. features of Synology DSM, built on the advanced Btrfs file system. Your data in safe hands with Btrfs 1. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Drive and snapshots use BTRFS so will be space. You can confirm that by looking how much of the shared data is used by snapshots before and after defragmentation (see btrfs filesystem du -s /path. The table below shows the Synology NAS models supporting the Btrfs file system: Series. Snapshots can further build on data protection in btrfs by providing historical data. Storage Manager Btrfs. Data deduplication requires you to Enable usage detail analysis for the Btrfs volume. Select a time range no shorter than a week by specifying the start and end date. Btrfs: Next Generation Storage Efficiency FS6400 introduces the Btrfs file system, bringing the most advanced storage technologies to meet the management needs of modern businesses: • Advanced snapshot technology provides schedulable, near-instantaneous data protection of shared folders and iSCSI LUNs. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. That's not true. Click Remove. In Btrfs, a snapshot is a copy of an entire subvolume taken at a given point in time. Select the LUN of which you want to take snapshots. A. You can go to Active backup for business => File server => Add server. One other thing if you are backing up to a NAS, CIFS/SMB while works, and is the easiest to setup, is the slowest option for Veeam Repo's, so if you can present your Synology repo as ISCSI target, you should get better performance over SMB targets. In any case, you will be presented with the same window. But why then claim support of btrfs? Snapshots, and send/receive are part of btrfs. If the system detects any data inconsistent with the checksum, it will attempt to use a backup to repair the data, and it will record the file path at Log Center. First create a volume using BTRFS, this is the new default, so you may have to create some space on drives and then create it. Make a new Storage Pool on the one drive. Spice (1) flag Report. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. Go to Snapshot Replication > Snapshots > Shared Folder or LUN. p. , Snapshot Replication or Synology Drive) because the backed up or synchronized data may also be corrupted. sudo btrfs filesystem defrag -yvr /volume1. My understanding is that rebuilding that kind of loss from SnapRAID would be a long process if it were even possible at all --. Snapshot Replication is an expert of data backup and recovery with the point-in-time copy mechanism. Select one or more snapshots you wish to remove, and click Remove. Click Delete to confirm the removal. BTRFS has better snapshot support, and all your linux distros+GRUB can be one one encrypted BTRFS partition (on separate subvolumes). Click Remove. Without earlier snapshots, blocks might only be deleted after compression, but if snapshots hold blocks they will be preserved and their compressed data will be stored ADDITIONALLY. 25. FS6400, FS3600, FS3410, FS3400, FS3017, FS2500, FS2017, FS1018. Two G. On certain Synology NAS models and under specific conditions, this file system also allows you to create a Btrfs volume of up to 1 PB in size . ago. Follow the steps in 1 to 4 of Replicate snapshot to a remote Synology NAS over the network. tmp; mv -f foo. If the replication source fails, shared folders or LUNs on the replication destination can be read and written to continue to. Using a synology nas they offer either ext4 or btrfs as the file system choice, and I was basically told by them ext4 is faster. It is possible to send btrfs snapshots to an. Btrfs（B-tree file system : バター エフエス、またはB木 『ビーツリー』 エフエスと読む ）はLinux向けのコピーオンライトのファイルシステムで、オラクルによって2007年に発表されGNU General Public License (GPL) の元で公開されている 。 Btrfsはサン・マイクロシステムズのZFSファイルシステムの影響を受け. . 8. Robust Data Protection with Btrfs DS1821+ supports a Btrfs file system optimized by Synology to offer both high reliability and high performance. However I see two things (a big one and a small one) in this video that could throw new users off the track: The big one: BTRFS doesn't have checksums, it has the option to have checksums, at least in the Synology integration. Meanwhile, creating the snapshots is no longer a problem for me, but now I would like to delete them again after 5 days. The following steps will help mitigate the impact or will help you respond to the ransomware disaster: Gather information about the ransomware attack. ripmilla - August 24, 2021. . 78GB of allocated metadata, which seems somewhat odd (too much allocated metadata). Jan 19, 2021 - Details Synology adopts Linux RAID instead of Btrfs RAID to ensure the RAID implementation is most stable and suitable for business use. Make sure that you have enough drives to create a RAID 6 storage pool: 1. Go to the Volume page. I set AB to keep snapshots, default setting on DSM6 (3-1-7-4-12-3). To take a shared folder snapshot, the file system of the data volume must be Btrfs. การทำ Snapshot Replication บน Synology เพื่อป้องกัน Ransomware. I recommend the new format for the snapshots alone (great against ransomware) and bit. Snapshots feature was not available on the old HFS4 File system. 4. My DS716+ has a hard limit of 1024 snapshots per shared folder. selecting the shared folder/LUN and clicking Action > Sync to run the replication task right away. Responses (1-2) Sorted by. The table below shows the Synology NAS models supporting the Btrfs file system: Series. Note: You can press and hold Ctrl or Shift to select multiple items. jessfraz reopened this. What you're missing here is that Synology's own page tells you to replicate data offsite which is the other half of what Snapshot Replication does. User quotas for each shared folder. 25. Snapshots for Shared Folder (and also VMware NFS. This is a great solution to quick backups that uses the btrfs and is a win. What this boils down to is this: btrfs is not an ideal FS for. Thanks for providing your logs. 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. If nothing changes , no new version is ever created. 3: Buy a much more expensive Synology DiskStation DS216+ (double the price!): this one supports BTRFS and therefore snapshot replication. Snapshots are readonly unless they are mounted as a share folder -#snapshots visibility I usually recommend turning it off unless you need it when browsing the snapshots via dsm file station (antivirus software won't understand that #snapshots isn't a folder and can end up scanning every single snapshot that will have mostly identical data), on windows pc. The drives within a storage pool must be of the same type. R. Written Instructions: Subscribe for more tech related tutor. It guarantees consistency of the whole tree at the time the snapshot was taken, which is great for point-in-time restores of a whole folder. BTRFS uses CoW (Copy on Write), so the size of snapshots depends on how much of your data changes and how frequently it does so. - you cannot use the BTRFS snapshot folder (a cool feature of Synology BTRFS options) while the encrypted share is mounted; thus you cannot easily browse files of prior snapshots, and therefore much of the convenience of snapshots is reduced, forcing you to unmount an encrypted share before accessing any snapshotsSnapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Data integrity protection. Replication is what you use to get your snapshots and the data to another Synology. The drives within a storage pool must be of the same type. several hours after HyperBackup session was ended , sudo btrfs sub list -td /volume1 showed 126 snapshots in 'deleted' state (almost no extra disk space was used). We set the shared folder so there's a snapshot taken once every day using the new capabilities of Btrfs. Snapshot Replication leverages the modern Btrfs file system to create point-in-time copies of shared folders and LUNs that can be replicated to other Synology NAS and rapidly restored in case of data. All other blocks are shared between both snapshots. Hyper Backup supports both the EXT4 and the Btrfs file system, but the format of the backup data is not readable. You should be able to suspend the scrub command with btrfs scrub cancel /dev/mapper/<device>. Your data in safe hands with Btrfs 1. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. As mentioned above, when picking between Btrfs vs. In the same testing environment, file transfer via Samba with the ext4-using QNAP NAS is 61. Cloud Station does use Btrfs snapshots which makes it actually usable on newer models. To check the space consumption of snapshots: 1. exFAT is best option for USB drives. Btrfs is the recommended file system to use in most scenarios. The BTRFs filesystem is supported by Synology on all of their NAS devices. Click Snapshot > Snapshot List. I am running a Synology NAS (BTRFS, NAS type: RS2416+) I have a shared folder I wanted to migrate to another appliance, and I would like to move all snapshots that have been running (some to a year back) via Synology's Snapshot and Replication app. Freeing up volume space by deleting snapshots. Do the following according to your DSM version: Go to the Storage page. User quotas for each shared folder. Full-Featured Operating System RS422+ runs the Synology DSM operating system, offering dependable storage, efficient productivity solutions, extensive backup options, and solid security. Select one or more snapshots you wish to remove, and click Remove. This delivers users the most advanced storage technology with features such as file self-healing, data consistency, and shared folder snapshots. If the replication source fails, shared folders or LUNs on the replication destination can be read and written to continue to. Snapshot Replication is an expert of data backup and recovery with the point-in-time copy mechanism. Spunkie 23 September 2021 23:59 13. 2. Others: 256. If you have multiple Synology NAS, you can use Snapshot Replication to replicate data. Reformat drive 1 to btrfs. Click Set Time Grid under the Space Reclamation Schedule section. Procházet a obnovovat snímky můžete pomocí Snapshot Replication, File Station, Průzkumníku souborů Windows nebo jiných souborových protokolů. So any operation starting a new transaction will block until the rescan and the transaction completes. Resolution. If you don't need snapshotting or subvolumes, but need performnance, then go LUKS + XFS or F2FS (for SSDs) route. However, there are circumstances (whether you’re using Synology Surveillance Station or simply need an extremely performant system) where Ext4 is the right selection. Go to the Volume page. Back to the original question: I originally made all my array drives. 1 Answer. pnutjam • 9 mo. Ability to create large volumes of up to 1 PB 1. Verify the user with getent passwd student2, and it will appear normal. 204. However, each shared. BTRFS is the single best feature of a Synology! This video goes over the top 5 features. Main features: Data protection features, including snapshot, replication, and point-in-time recovery. Moreover the “guestmount is missing”. After extracting the downloaded file, follow the steps in the README file and execute sudo . Synology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. , and Docker has been running for a while so I checked the status of the BTRFS volume. HD6500. Models. More importantly, BTRFS includes native checksumming of all stored data. 51 dB(A); Temperature: 24. 0 slot for an optional 10GbE add-in network interface card, or an M2D18 M. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. User quotas for each shared folder. Data integrity protection. You will see a confirmation message. If you create a shared folder on a Btrfs volume, you can limit how much storage space it can use. Is Btrfs. Nice video and a much-deserved push for BTRFS. This is a tutorial on how to set up Synology Snapshots to ensure that your data is never lost, even if your files change! This allows you to revert back to p. Select Remove. DSM 7 Series. For those that prefer, here is a video review of the snapshot replication process: As i understand, you have a Shared Folder in your synology nas which is then mapped on your client pc's (smb share). Snapshots also let users recover their own deleted or modified files in shared folders on their own. But the second you move to btrfs on LVM you lose a large portion of the supposed benefits. Establish a Strong Storage Foundation with Btrfs DS420+ features a Btrfs file system optimized by Synology to offer youRecommended for general use. [ OK ] Started SNMP Daemon. Go to the Volume page. The snapshot benefits with Synology/BTRFS is that they are created instantly (near zero CPU load) and they occupy very little space as compared to old-fashioned snapshot technology. g. HyperBackup to remote NAS and/or C2. A. Added the snapshot calculator to provide a graphical. The following diagram explains the concept where Synology implements the "Device Mapper" and "RAID" layers to replace. Snapshots on the Btrfs File System. After removing all active snapshots from the UI and uninstalling the Snapshot Replication app, the folder ought to be able to be deleted. Btrfs supports advanced storage technologies that meet the needs of modern business: • Advanced snapshot technology provides schedulable andImplementing the BTRFS file system in Synology NAS RAID volumes brings multiple benefits to its users, including: BTRFS Snapshots: It offers a powerful snapshot feature, which creates point-in-time read. Block-level data protection. First mount your partitition containing the btrfs filesystem to e. "Btrfs has greater I/O latency. Hyper Backup supports both the EXT4 and the Btrfs file system, but the format of the backup data is not readable. 49-17. Hi, running ubuntu/precise with 3. In the rsync mode, snapshots are taken using rsync and hard links, and common files are shared between the snapshots to save disk space. The price-performance ratio in this storage dimension is perfect. Step 2. On the destination server, go to Snapshot Replication > Replication > Shared. However these changes are very minimal. Hi! Come and join us at Synology Community. 2. When the conditions specified in the Environment section are met, you can create a volume that is larger than 200 TB and up to 1 PB. Virtual DSM must be created on DSM 6. Share. Select Remove. Select a time range no shorter than a week by specifying the start and end date. The retention time may be caused by the Synology snapshots and Btrfs file systems because they allow files and folders to existing on the hard disk somewhere to be restored. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. • Advanced snapshot technology provides schedulable and near-instantaneous data protection for shared folders and LUNs • File and folder-level data restoration enables recovery of specific files or folders • Flexible storage quota system helps admins manage available spaceIn Snapshot Replication (so this is only on Btrfs systems) there's an Advanced setting for each Shared Folder that says "Make snapshot visible". In theory, files can be restored with: snapper -c config-name -v undochange SNAPSHOT_ID. On a quarterly basis we rotate an. Enable SSH service on the NAS server. Connect to the NAS server remotely. Snapshots also let users recover their own deleted or modified files in shared folders on their own. hexamer23 • 4 yr. key. I'm trying to build my own little backup script, I want to use BTRFS snapshots and keep them for a while. QNAP uses ext4 and OverlayFS technology, providing high-efficiency volume and block-based iSCSI LUN snapshots to well protect important data. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Learn more about Btrfs. . A Replication is a mechanism used to sync snapshots of shared folders or LUNs between the sources and destinations. See moreBTRFS Snapshots are a feature that every single Synology user should be using. The Synology DiskStation Manager (DSM) operating system that powers DS423+ uses the advanced Btrfs file system, which safeguards your data against corruption and allows for. The issues with it are completely mitigated. FS6400, FS3600, FS3410, FS3400, FS2500. Click OK to finish. If you are looking for a network-attached storage device to act as a network backup or just want a simple NAS to do basic tasks such as media and protecting the data on your other devices, I recommend. 0 and v4. [ 19. 2 TB of data. Snapshot Replication provides the convenience of replicating snapshots to multiple remote Synology NAS and only replicates altered data blocks to reduce bandwidth and time consumption. Go to Storage > Global Settings. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. That's an example of a fast mechanism for a ransomware, using the drive to make the data inaccessible instantly. 0. Click Snapshot > Snapshot List. If you rely on BTRFS snapshots you might sometimes find yourself in the situation where you have accidentally created a handful of very large files with the intention to remove them very soon. 2) My reason for external USB btrfs: NAS Time Machine backups are unreliable, as I have learned several times after getting the benign-sounding message. If, for example, most your data writes are file add (like storing your camera roll, your movie collection,etc), btrfs snapshots will use virtually no extra space. 0. Visit Stack ExchangeHowever, btrfs subvolume snapshot does exclude subvolumes which are contained in the target subvolume (it creates empty directories in the snapshot), so. 1 or above to support the snapshot feature. This article is part of a series of articles that takes a closer look at Btrfs. Bitrot protection is somewhat mitigated by btrfs, not the raid config. AB & Replication are not that hard. 2. You will see a confirmation message. HD6500. 1, Btrfs sẽ được Synology ứng dụng trên NAS. RAID scrubbing: This function can repair any detected data inconsistencies on storage pools that. Removed volume. Sign in to the source and destination servers with an administrator account.