Sorting is probably enough to guarantee that snapshots or subvolumes which depend on previous ones are handled first. You may replace the directories that you want to exclude with subvolumes. For management flexibility, one. Data integrity protection. you don’t need to be filesystem-agnostic), would Btrfs snapshots be better for this same use-case? chousuke. Then in "/mnt" you should see your "@" and "@home. jacobhutson @jacobhutson*. See the Systemd-nspawn#Use Btrfs subvolume as container root and Systemd-nspawn#Use temporary Btrfs snapshot of container articles. These commands are more or less equivalent: btrfs fi defrag -czstd foo. Environment. , and Docker has been running for a while so I checked the status of the BTRFS volume. Take the steps below for NAS data recovery from QNAP, Synology, Lacie, Iodata, Buffalo, DLink, Seagate, Western Digital, and more. 5K views 2 years ago Synology Tutorials. Enable SSH service on the NAS server. Click Remove. This tutorial will show you how to set up and configure Synology NAS Snapshots. 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. 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. Note: You can press and hold Ctrl or Shift to select multiple items. Ask a question or start a discussion now. Main features: Data protection features, including snapshot, replication, and point-in-time recovery. HD6500. For each shared folder, edit its settings and change the volume from the ext4 volume to the new btrfs volume. Data deduplication is only supported on Synology SSDs and specific Synology NAS models ; The Btrfs file system is available on specific Synology NAS models only ; A storage pool must be comprised of drives of the same type. g. 1 and i 'm trying to take benefit of deduplication or snapshot but for deduplication doesn't work at all !!I do have 2 Synology devices with Btfrs, so time to get things working. Adjusted the notification mechanism for bad sectors. Whether for work or play, Synology offers a wide range of network-attached storage (NAS) choices for every occasion. The snapshot exists in the real root of the filesystem, which is not what you have mounted in /. A minimum of 4 drives is required. The thing is I don't fully understand what the advantages are of the 3rd scenario compared to the 2nd scenario. While BTRFS itself will behave that way there is no guarantee that Synology will too. Supports SSD compatibility check on XS and FS series models. Hyper Backup supports both the EXT4 and the Btrfs file system, but the format of the backup data is not readable. The Pin all Btrfs metadata to SSD cache feature is designed to improve the performance of operations that rewrite files periodically, such as mass deletions of old data, operations in Active Backup, Hyper Backup, and snapshots. Btrfs supports advanced storage technologies that meet the needs of modern business: • Advanced snapshot technology provides schedulable and near-instantaneous data protection of shared. The snapshot replication wizard only lists local btrfs volumes, so it doesn't show the USB drive (which I mkfs. Snapshot Replication is an expert of data backup and recovery with the point-in-time copy mechanism. 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. (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. You will see a confirmation message. Click Remove. Copy everything from Volume1 to Volume2. The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. If you create a shared folder on a Btrfs volume, you can limit how much storage space it can use. 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. Both Synology and QNAP give users the option of using Ext4. There is only 36. Keep your data on-site. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. 25. Models. A replication task for a LUN can be executed every 15 minutes. Establish a Strong Storage Foundation with Btrfs DS420+ features a Btrfs file system optimized by Synology to offer youRecommended for general use. You can create one-to-many/extended replications for a shared folder to at most 3 different destinations. You can create one-to-many/extended replications for a shared folder to at most 3 different destinations. 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. The shared folder must be located on a Btrfs volume. I set AB to keep snapshots, default setting on DSM6 (3-1-7-4-12-3). You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. BTRFs snapshots do not impact on the performance of the filesystem as they do not take up a lot of disc space. 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. 3. DS420+ comes with two built-in M. Snapshot Manager for VMware/Windows: Application-consistent snapshots; Synology High Availability (SHA): Ensures the reliability of LUN and iSCSI services. When an SMB client issues a request to copy duplicate data (via FSCTL_SRV_COPYCHUNK), this module maps the request to a Btrfs clone range IOCTL, instead of performing reads and writes required by a traditional copy. FreeNAS Mini, and Synology for a few months and the snapshot feature is very important at my workplace and I'd really like to know whether it's not just half-baked in DSM 6. Only virtual machines created on Btrfs volumes support the snapshot feature. Added new btrfs volume. If you changed multiple times a file in between 2 snapshots , you will still only have 2 "versions" of the file. The FS2017 is the ideal storage solution for operating load-critical virtual machines. tmp; mv -f foo. That's not true. If it doesn't, then the issue is the Synology patches to btrfs. Was letting it do its thing but it was taking depressingly long amount of time. I copied from my /volume1 to /volume2. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Synology BTRFS Snapshot Replication allows you to send BTRFS snapshots from one Synology NAS to another, at ultra low intervals. Go to Snapshot Replication > Snapshots. I did have a pretty seamless transition to btrfs so it looks like I'm in business. Models. However, empirical testing on multiple mixed-use systems showed a significant. Snapshot support. The FS2017 is the ideal storage solution for operating load-critical virtual machines. Resolution. 1. if your btrfs partition is /dev/sda1, it would be something like "mount /dev/sda1 /mnt". Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Again, you still don't need another machine. Data integrity is better, based on checksum technology; Somewhat better disaster management-BTRFS:For DSM 7. To check the space consumption of snapshots: 1. However, each shared. BTRFS snapshots are by default on: /volume1/@sharesnap/ [folder] / [timestamp] Timestamp look like this: GMT-07-2018. Your data in safe hands with Btrfs 1. Btrfs is the recommended file system to use in most scenarios. 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. Backed up data to USB drives. Supports snapshot features for shared folders in Btrfs volume and LUNs, including schedule, management, browse. Nothing to do with non-"purest"" form. They protect you form ransomware, file corruption, and even dumb deletes, all at. Btrfs: advanced file system for data protection. 8. S. Now you can use the Active backup for business. You will see a confirmation message. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Data deduplication requires you to Enable usage detail analysis for the Btrfs volume. This is what I was wondering. Data protection is about using various options as there are raid for drive failure redundancy, snapshots if you have and can use the btrfs filesystem and the btrfs feature to have bitrot protection enabled for most shares, hyperbackup to a remote nas and into the cloud (backblaze B2), rsync to remote nas for media that is to be accessed on the. drive does not encrypt". A Replication is a mechanism used to sync snapshots of shared folders or LUNs between the sources and destinations. It is different than snapshots. To check the space consumption of snapshots: 1. Drive versions are event-based : whenever there is some change, a version is saved. g. That will do. Select a snapshot and click Edit. Hyper Backup looks after all your local, remote, Rsync, cloud and iSCSI LUN backups from a single console and integrates neatly with Synology’s optional C2 Backup cloud service. The snapshot feature on DSM is specially designed, so replicating snapshots to other Linux-based devices isn't available either. Spice (1) flag Report. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. You can correlate two lists together to get sizes of each subvolume/snapshot. If you don't need snapshotting or subvolumes, but need performnance, then go LUKS + XFS or F2FS (for SSDs) route. the VMS is an extra added bonus, if have add RAM to support a few VM's. As I understand, these are bound to the inode and filesystem, but is. Cloning an entire shared folder is quick and easy with Btrfs. Back to the original question: I originally made all my array drives. Download Datasheet. You can go to Active backup for business => File server => Add server. To use snapshots on your Synology, you must have a copy that supports the BTRFS file system. 8TB", "Used 12. 1 and got the following when removing a container: $ docker rm docker-lloyd-service Error: container_delete: Cannot destroy container docker-lloyd-service: Driver btrfs failed to r. Confer with your team to develop and document an initial understanding of what has occurred based on initial analysis. Thinking that we can purchase an RS815 and replicate the backups to that. Data deduplication is only supported on Synology SSDs and Btrfs volumes. Full-Featured Operating System RS422+ runs the Synology DSM operating system, offering dependable storage, efficient productivity solutions, extensive backup options, and solid security. The snapshot exists in the real root of the filesystem, which is not what you have mounted in /. 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. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. 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. Step 2. Then, use the time grid to specify when you do not want space reclamation to run. 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. Your data in safe hands with Btrfs 1. Btrfs allows for multiple files to share the same on-disk data through the use cloned ranges. Click Snapshot > Snapshot List. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Figure out how to reformat drive 2 to btrfs. . RAID scrubbing: This function can repair any detected data inconsistencies on storage pools that. Ext4 for Synology NAS devices, most users should pick Btrfs for the data integrity benefits that it provides. It is quite easy to make a snapshot in btrfs. jessfraz on Jan 14, 2015. What takes up space is each consecutive data change, that is why snapshots are created instantaneously. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. 1. Click Snapshot > Snapshot List. Reclaiming Snapshot Space in BTRFS. Starting Synology Cron Daemon. Data integrity protection. While RAID 5 and 6 can be compared to RAID Z. I have worked out the following command to get the creation time of the snapshots. With btrfs snapshots, assuming I'd taken a recent snapshot, restoring that much data would have been a matter of seconds. At this point I have my 4x2TB and 1x10TB in slots. The table below shows the Synology NAS models supporting the Btrfs file system: Series. The Btrfs file system is now supported on select Value series NAS. Hyper Backup and rsync can go to non-synology destinations. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. It features smooth data sharing, video streaming, and photo indexing, as well as well-rounded data protection and recovery options. Restore your data from using backup tasks or snapshots. You have the /@ subvolume mounted in /, so there is no such file with that name. This delivers users the most advanced storage technology with features such as file self-healing, data consistency, and shared folder snapshots. Snapshots on the Btrfs File System. 1 and btrfs with a shared folder named "Files". Visit Stack ExchangeHowever, btrfs subvolume snapshot does exclude subvolumes which are contained in the target subvolume (it creates empty directories in the snapshot), so. 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. Data deduplication is only supported on Synology SSDs and Btrfs volumes. Select one or more snapshots you wish to remove, and click Remove. No go on ext4. 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. The Btrfs filesystem supports read-only and writable snapshots of the file. 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). Learn more Btrfs is a copy on write file system. 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. As we can see on the image, there is a list of all available snapshot points. /install. 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. Synology BTRFS Snapshot Replication allows you to send BTRFS snapshots from one Synology NAS. 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. A place to answer all your Synology questions. For DSM 7. 9908. This article is part of a series of articles that takes a closer look at Btrfs. - 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 snapshots 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. One can also specify more than one file. There are definitely drivers for ext4 and btrfs for Windows, but I am always leery of rolling the dice with file systems. Follow the steps in 1 to 4 of Replicate snapshot to a remote Synology NAS over the network. Select Send the initial copy using the storage device and choose a storage device. First list them: cd /your/mount. 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. Snapshots let you save the state of a file system at a particular point in time and recreate it on another machine to simplify data migration. . Don’t use BtrFS for critical work loads. Btrfs: advanced file system for data protection. Users can replicate snapshots taken of shared folders and LUNs from a Synology NAS to another Synology NAS as long as both NAS are using Btrfs file systems. I discovered that there were 147 snapshots!Also a fellow poster in another forum once had a great idea to nest a BTRFS fs into a LUKS container and yet another BTRFS to transfer snapshots to the inner BTRFS and in turn use a snapshot of the outer BTRFS to sync over the internet. Hi, running ubuntu/precise with 3. Optimal retention of Btrfs snapshots. Only works with btrfs. If you're not going to replicate then use snapshots and a backup and enable the recycle bin while you're at it so you have a spread of options. Configure scheduled snapshots and retention settings. Thinking that we can purchase an RS815 and replicate the backups to that. Everything works right up to one thing, LUN increases the size above the set value. Your data in safe hands with Btrfs 1. So, likely it will work. According to your environment and needs, you can choose to replicate shared folders to another Synology NAS or another Btrfs volume on the local Synology NAS. If data are already corrupted, you might not be able to restore the data via an onsite backup solution (e. jessfraz added the area/storage/btrfs label. This is a great solution to quick backups that uses the btrfs and is a win. Virtual DSM must be created on DSM 6. Read and follow the instructions on the pop-up window. ago. Read and follow the instructions on the pop-up window. ; In the Set Replication Schedule page, select Immutable snapshots and set Protection period. The reason Synology btrfs is mostly solid is because they refused to ever use the btrfs raid layer. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. . I've tried to connect it to a ESXi host and the connection works but I never tried to backup a VM. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. You need to create a storage pool consisting entirely of Synology SSDs and then create at least one Btrfs volume. Launch the EaseUS Data Recovery Wizard, choose a NAS server, and begin the recovery process. Click Delete to confirm the removal. A Replication is a mechanism used to sync snapshots of shared folders or LUNs between the sources and destinations. AB & Replication are not that hard. The copy app is if you regularly load/unload photos or anything else transient so it. Ability to create large volumes of up to 1 PB 1. jessfraz mentioned this issue on Jan 6, 2015. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Take immutable snapshots of shared folders and LUNs that cannot be deleted via any method. All versions. From what I can see - the DSM system doesn't use BTRFS based snapshots and replication - it still uses the older way on the ext4 system. Select a shared folder and click Snapshot > Calculate Size. Delete the 4tb drive. What I mean is I don’t replicate snapshots (which wasn’t possible anyway for a long time with 2FA activated on the target box, they fixed that only recently), I just let btrfs do the snapshots on both sides (configurable via. 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. Entire shared folders can be easily and quickly copied as BTRFs are copy-on-write filesystems. From what I can see - the DSM system doesn't use BTRFS based snapshots and replication - it still uses the older way on the ext4 system. Ask a question or start a discussion now. Then you delete synology-specific subvolumes that didn't contain any data in my case. So now, we are with LUNs on top of BTRFS volume. But why then claim support of btrfs? Snapshots, and send/receive are part of btrfs. Use Btrfs subvolumes with systemd-nspawn. You can see the number of snapshots taken within the selected time frame. People bash btrfs, but Synology has been using it as their main filesystem in their low. Creating a 1 PB volume. Timeshift works in two modes: Rsync mode and BTRFS mode. Learn more. run to install the snapshot driver and agent. Backups are done via Borg on this device. Reply more reply. DSM 6 Series. This means that Btrfs snapshots are space efficient with little or no performance overhead. That are many copies of the past years (even an ‘antique’ DS412. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. 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 the limits of the following maximum numbers of retainable snapshots: 1024 snapshots for each shared folder (or 256 on certain Synology NAS models) 256 snapshots for each LUN sudo btrfs filesystem defrag -yvr /volume1. Setting up the Btrfs file system on a Synology NAS offers several very interesting advantages, especially for advanced users and also at the enterprise level:. Click the upper right icon of the ext4 volume you want to remove. How shared folders snapshot works. Select Remove. The defrag option in the GUI made me lose 10TB free space. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. Incremental backups of the NAS. tmp; cp -a foo foo. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. Recommended for general use. Robust Data Protection with Btrfs DS1821+ supports a Btrfs file system optimized by Synology to offer both high reliability and high performance. Was this article helpful?. 1 Answer. The Synology DiskStation Manager (DSM) operating system that powers the DS224+ uses the advanced Btrfs file system, which safeguards your data against corruption and allows for the reversal of unintended or malicious changes through the use of snapshot technology. Go to Snapshot Replication > Snapshots. In addition, to support this idea: Snapshot replication is btrfs send and btrfs receive. This is a big deal. Synology actually makes this part fairly easy. Go to the Volume page. Just let it do its thing. • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder • Live transcoding of up to two concurrent H. jessfraz /project/helpwanted label on Jan 14, 2015. 444144] BTRFS info (device sdb1): enabling auto syno reclaim space. A place to answer all your Synology questions. Mar 28, 2017. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. You must confirm that the source and destination NAS are both using the BTRFS file system to proceed. Freeing up volume space by deleting snapshots. Using BTRFS as a single disk EXT4 replacement is perfectly fine without any issues, and that's how DSM is using it. Hi - I just had the very same problem that deletions would just not reflect in the UI and btrfs usage statistics while du would show much smaller usage. 2) Here's the command the UI uses when you manually start a volume defrag on DSM 6 with BTRFS /sbin/btrfs filesystem defragment -r. Select a shared folder or LUN and click Snapshot > Snapshot List. • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder • Anywhere access with iOS/Android™/ Windows ready mobile apps Optimal Performance and Hardware Design Synology DS418play is a 4-bay network attached storage solution equipped with anBy passing this option when adding a new user, a new Btrfs subvolume will be created. g. Written Instructions: Subscribe for more tech related tutor. Select Send the initial copy using the storage device and choose a storage device. 1: Select Btrfs (Peta Volume) and click Next. But. Next step is replication. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing. Take immutable snapshots of shared folders and LUNs that cannot be deleted via any method. It functions just like the -d option does for creating a regular directory: # useradd --btrfs-subvolume-home student2 Create subvolume '/home/student2'. Infact, its not the amount of time, it was the degradation to performance that made the server almost unusable while it cleaned up. 2. This will defrag using -v for verbose, -r for recursive inclusion of all subfolders, and -y "do syno reclaim space". Verify the user with getent passwd student2, and it will appear normal. 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. Restore from usb backup with hyper backup. Enter the password of your DSM account and click Submit to confirm the removal of the volume. You will see a confirmation message. A Snapshot is a point-in-time copy stored in the same volume used to record the whole data status at the time upon being taken. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. 8 kernel on docker 0. A minimum of 4 drives is required. Thinking that we can purchase an RS815 and replicate the backups to that. การทำ Snapshot Replication บน Synology เพื่อป้องกัน Ransomware. Make sure that you have enough drives to create a RAID 6 storage pool: 1. Resolution. g. Improved the calculating accuracy of SSD cache. Reformat drive 1 to btrfs. Recommended for general use. Just as a note the Synology also adds from xattrb’s to it’s btrfs file system so you will not be able to btrfs-send a subvol… also as a warning all the HARD links are from root of docker image but /urbackup but live in /volume1/urbackup so outside of the docker none of the links will work unless you create a link from /urbackup to. The problems could be caused because the version of btrfs-progs expects a more updated version of the btrfs kernel module. Scale up to 36 drives with Synology RX1217/RX1217RP Complete virtualization solution for Citrix OpenStack Cinder support Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder Redundant power supplies ensure service uptime Backed with Synology’s 5-year limited warranty & SynologyDepends what your running but generally no performance loss isn't an issue. Select a shared folder you wish to remove the snapshots of. Select the ext4 volume you want to remove. e. 2. waiting for the next scheduled replication to take a new snapshot. 2 TB of data. After removing all active snapshots from the UI and uninstalling the Snapshot Replication app, the folder ought to be able to be deleted. Remove the 2tb drive. Freeing up volume space by deleting snapshots. 00. And even then, think twice. Hi, to protect my backups from a windows backup application. 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 the limits of the following maximum numbers of retainable snapshots: 1024 snapshots for each shared folder (or 256 on certain Synology NAS models) 256 snapshots for each LUNSelect Remove. it really isn’t!). You have to mount the real root volume somewhere and use that path to reference the snapshot. You may look at your hard drive, and say to me "but my. That data is in a sub folder inside a Shared Folder now. Recommended for general use. Go to the Volume page. 2 and above: Select Btrfs and click Next. As mentioned above, when picking between Btrfs vs. You will see a confirmation message. Find it under Download Center > your model > Documents > Product Specifications . A BTRFS subvolume is a part of filesystem with its own independent file/directory hierarchy and inode number namespace. The drives within a storage pool must be of the same type. 2 SSD drive slots: Pros • BTRFS filesystem with snapshots available • Supports 4K H. Select Immutable snapshots and set Protection period. 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. You can create snapshots almost instantly, and initially they consume virtually no additional disk space. 8. 2; Follow the wizard to finish. AFAIK in the Synology UI everything is managed in the Snapshot Replication app, even if you don't replicate them. If the replication source fails, shared folders or LUNs on the replication destination can be read and written to continue to. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. Connect to the NAS server remotely. 0 slot for an optional 10GbE add-in network interface card, or an M2D18 M. 6. I would use hyper backup for the offsite solution. FS-series. What this does is add a #snapshot folder to the shared folder that you can access via SMB/CIFS, AFP, FTP, File Station, you name it. Go to the Volume page. (Which was one of the top features we aimed) We kept btrfs and snapshot & replication for the other, less busy volumes up to this point. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. 1. A Replication is a mechanism used to sync snapshots of shared folders or LUNs between the sources and destinations. S.