You can create one-to-many/extended replications for a shared folder to at most 3 different destinations. Click Calculate Now to start calculating. But snapshots make it hard. Restore your data from using backup tasks or snapshots. Choose "NAS Recovery" from the software's menu when it opens. ago. If the btrfs background process is currently running a scrub operation you should be able to check on it with the following command: btrfs scrub status /dev/mapper/<device>. Find it under Download Center > your model > Documents > Product Specifications . jacobhutson @jacobhutson*. 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. QNAP uses ext4 and OverlayFS technology, providing high-efficiency volume and block-based iSCSI LUN snapshots to well protect important data. You have to mount the real root volume somewhere and use that path to reference the snapshot. FS-series. Click Remove. I always create a snapshot afterwards of the target folder on the NAS, so its safe for Randomware or unwanted changes. Now you can use the Active backup for business. Using BTRFS as a single disk EXT4 replacement is perfectly fine without any issues, and that's how DSM is using it. FS6400, FS3600, FS3410, FS3400, FS3017, FS2500, FS2017, FS1018. In the storage manager I see the values "Reported 6. Select one or more snapshots you wish to remove, and click Remove. Freeing up volume space by deleting snapshots. Keep your data on-site. drive does not encrypt". My understanding is that rebuilding that kind of loss from SnapRAID would be a long process if it were even possible at all --. If you have a snapshot of a volume where the files are encrypted, solve the ransomware attack and activate the snapshot before the ransomware occurred. Models. Simply select one and click Browse. But why then claim support of btrfs? Snapshots, and send/receive are part of btrfs. Select one or more snapshots you wish to remove, and click Remove. For the large deletion of data BTRFS snapshots would be the solution. Both Btrfs and ZFS offer built-in RAID support, but their implementations differ. I have good understanding of BTRFS, snapshots, etc. More importantly, BTRFS includes native checksumming of all stored data. 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. A Btrfs snapshot is a subvolume that shares its data (and metadata) with some other subvolume, using Btrfs' copy-on-write capabilities, and modifications to a snapshot are not visible in the original subvolume. Ability to create large volumes of up to 1 PB 1. You can correlate two lists together to get sizes of each subvolume/snapshot. This will copy whole shares (and snapshots) to another disk as a whole instead of copying microscopic files. You can set it up with an intelligent retention policy, or just 2 weeks. the VMS is an extra added bonus, if have add RAM to support a few VM's. Recommended for general use. Btrfs: advanced file system for data protection. In case you lose your data, Snapshots instantly restores these. Data in a readonly snapshot will be treated as CoW (Copy on Write) and that's what will eat your space. 2; Follow the wizard to finish. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. When activated, Snapshots automatically replicates the shared folder as often as every five. That will do. Select one or more snapshots you wish to remove, and click Remove. With its compact 1U form factor and powerful Synology DiskStation Manager (DSM) operating system, the 4-bay Synology RackStation RS422+ is an affordable all-in-one solution for small businesses and homelab owners looking to meet their daily data management, sharing, synchronization, and backup needs. 2. Mount your btrfs root (by not specifying a subvolume, e. We upgraded uk1 and uk2 to DSM 6. To check the space consumption of snapshots: 1. Freeing up volume space by deleting snapshots. Select one or more snapshots you wish to remove, and click Remove. The shared folder must be located on a Btrfs volume. Main features: Data protection features, including snapshot, replication, and point-in-time recovery. I'm sure the Synology DSM OS does something in the background but I. You have the /@ subvolume mounted in /, so there is no such file with that name. 444144] BTRFS info (device sdb1): enabling auto syno reclaim space. If using Btrfs, you should create Snapshots for all your shares! That way, the ransomware cannot modify the original data and you are still able to revert to an older version easily. The snapshot replication wizard only lists local btrfs volumes, so it doesn't show the USB drive (which I mkfs. What would be the optimal number of snapshots to retain for each period, such that both frequency of retention (recent history) and length of. RAID etc is not managed. Freeing up volume space by deleting snapshots. First there is the local snapshot replication, but if it is critical data, you might want to do two things: Snapshot Remote Replication. The FS2017 is the ideal storage solution for operating load-critical virtual machines. Then you delete synology-specific subvolumes that didn't contain any data in my case. 0. Launch the EaseUS Data Recovery Wizard, choose a NAS server, and begin the recovery process. The drives within a storage pool must be of the same type. 2 and above versions support instant snapshot and restoration; Maximum number of concurrent LUN backup tasks: 1;. . You can replicate with btrfs to another Synology NAS that also has btrfs and Snapshot replication loaded. A place to answer all your Synology questions. Also, the speed issue depends on usage. File System ของคุณจะต้องเป็น Btrfs. Apparently some adjustments still need to be made so that using the btrfs storage driver also works on the Btrfs filesystem on a Synology NAS. Main features: Data protection features, including snapshot, replication, and point-in-time recovery. • Back up your Synology NAS: Hyper Backup offers a wide range of destinations for backups of your NAS, including on-premises and cloud. Then should the main unit fa. 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 loss or accidental modifications to the original data. Snapshots also let users recover their own deleted or modified files in shared folders on their own. But. 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. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. To check the space consumption of snapshots: 1. selecting the shared folder/LUN and clicking Action > Sync to run the replication task right away. Open the Snapshot Replication. 8. Click the upper right icon of the ext4 volume you want to remove. Spunkie 23 September 2021 23:59 13. Btrfs Snapshots Ransomware proof? Let's say I have a Synology Diskstation with DSM 6. Ext4 for Synology NAS devices, most users should pick Btrfs for the data integrity benefits that it provides. Enter the password of your DSM account and click Submit to confirm the removal of the volume. Select Remove. 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. b. tmp; setfattr -n btrfs. Snapshot Manager for VMware/Windows: Application-consistent snapshots; Synology High Availability (SHA): Ensures the reliability of LUN and iSCSI services. Follow the steps in 6 to 8 of Replicate snapshot to a remote Synology NAS over the network. The chart below displays the difference in terms of hard drive space reserved for redundancy. To take a shared folder snapshot, the file system of the data volume must be Btrfs. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Sign in to the source and destination servers with an administrator account. . It works on my Windows, Linux VM, and iPhone. 8. Click Snapshot > Snapshot List. 3: Buy a much more expensive Synology DiskStation DS216+ (double the price!): this one supports BTRFS and therefore snapshot replication. Sự cải tiến này giúp NAS thực hiện nhiệm vụ lưu trữ và bảo vệ dữ. Read and follow the instructions on the pop-up window. Procházet a obnovovat snímky můžete pomocí Snapshot Replication, File Station, Průzkumníku souborů Windows nebo jiných souborových protokolů. From documentation, the requirement for Active Backup for Business is Btrfs. 51 dB(A); Temperature: 24. Hi, my NAS runs the BTRFS file system. HD-series. • 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". HD6500. key. FS6400, FS3600, FS3410, FS3400, FS3017, FS2500, FS2017, FS1018. Follow the steps in 1 to 4 of Replicate snapshot to a remote Synology NAS over the network. exFAT is best option for USB drives. Mar 28, 2017. Snapshots also let users recover their own deleted or modified files in shared folders on their own. At this point I have my 4x2TB and 1x10TB in slots. Btrfs is the recommended file system to use in most scenarios. arch_maniac. 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. The table below shows the Synology NAS models supporting the Btrfs file system: Series. 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. 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). You have the /@ subvolume mounted in /, so there is no such file with that name. Synology Drive Server; Snapshot Replication 5; Notes: To change your existing RAID type to RAID 6, refer to the requirements in this article. 2: Buy a cheap second Synology NAS like the Synology DiskStation DS216j. Launch Storage Manager. For we works great for File Server (SMB mostly). Reclaiming Snapshot Space in BTRFS. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. 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 loss or accidental modifications to the original data. This article will show you how to create a Btrfs volume and work with Btrfs snapshots on your Synology NAS. The Btrfs file system cannot repair the damaged data. Btrfs on more models. jessfraz reopened this. Series Models; HD-series: HD6500: FS-series: FS6400, FS3600, FS3410, FS3400, FS2500,. Backups are done via Borg on this device. Removed volume. การทำ Snapshot Replication บน Synology เพื่อป้องกัน Ransomware. btrfs subv delete <path and snapshot name>. HD6500. waiting for the next scheduled replication to take a new snapshot. It's great protection against ransomware. Note: You can press and hold Ctrl or Shift to select multiple items. Application consistent: This type of snapshot can only be taken when Synology Storage Console or Synology Snapshot Manager. Here you enter the ip to the nas itself or 127. You will see a confirmation message. It features smooth data sharing, video streaming, and photo indexing, as well as well-rounded data protection and recovery options. Maybe that’s why Synology is currently reluctant to upgrade the Docker. To check the space consumption of snapshots: 1. On Synology its per share folder so not sure if that is any different (Synology has a 256 snapshot limit per share folder). Verify the user with getent passwd student2, and it will appear normal. corruption through file self-healing and allows for the reversal of unintentional or malicious changes through fast snapshot technology. Your data in safe hands with Btrfs 1. Again, you still don't need another machine. Copy drive 1 data to drive 2. Select a shared folder and click Snapshot > Calculate Size. Note: You can press and hold Ctrl or Shift to select multiple items. Resolution. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. where SNAPSHOT_ID is the ID of the snapshot to restore from (and . The copy app is if you regularly load/unload photos or anything else transient so it. So, likely it will work. Make sure that you have enough drives to create a RAID 6 storage pool: 1. btrfs-cleaner is the snapshot removal process. BTRFS is the single best feature of a Synology! This video goes over the top 5 features. It seems the snapshot allows for a warm spare which could allow you to so some work in cases where you had a vpn connection between the two locations. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing. HD-series. When mounting the external device these mount options are honored. Synology DiskStation Manager (DSM), the operating system that powers the DS223, leverages the efficient Btrfs file system to protect your data against data corruption and roll back any accidental or malicious changes thanks to the snapshot technology. With Btrfs you get self healing, snapshots, copy on write, background file system checks, online defragmentation, and much more. g. 04GB of allocated data, yet there is 1. The original data is read from the layer where the file currently exists, and only the modified blocks are written. tmp; mv -f foo. jessfraz on Jan 14, 2015. , Snapshot Replication or Synology Drive) because the backed up or synchronized data may also be corrupted. For DSM 7. Data deduplication can only run when the volume status is Healthy. Hyper Backup supports both the EXT4 and the Btrfs file system, but the format of the backup data is not readable. So your day 1 snapshot will contain the original directory block as well as all unchanged blocks and your current state will contain the new directory block and not the old one. We set the shared folder so there's a snapshot taken once every day using the new capabilities of Btrfs. To get a detailed view of the space consumed by each single snapshot, simply add a "/*" at the end of the syntax above: btrfs filesystem du -s --si -g /volume1/@sharesnap/ [a-z]*/* Gathering the information takes a while. 51 dB(A); Temperature: 24. Confer with your team to develop and document an initial understanding of what has occurred based on initial analysis. Just let it do its thing. Introduction. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. We begun testing BTRFS based "Snapshot and Replication" application rather than our own way of doing things. You can see the number of snapshots taken within. FS6400, FS3600, FS3410, FS3400, FS3017,. Click Snapshot > Snapshot List. Was this article helpful?. In rare cases you might want to delete files from snapshots. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. So only changed blocks from snapshot to snapshot will require additional storage. PAT file. If you format it on another device it will work fine. 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). The source periodically makes snapshots using the built-in. 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. Adjusted the notification mechanism for bad sectors. 0 btrfs-progs library compiled against the Synology kernel, but if the issue is Synology patches, I have no idea what versions of btrfs would. Snapshots for Shared Folder (and also VMware NFS. Only works with btrfs. This article is part of a series of articles that takes a closer look at Btrfs. Delete the 4tb drive. Install the 6tb drive. tmp; setfattr -n btrfs. Go to the Volume page. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. You will have to ask them if and when it deletes snapshots. ago. Don’t use BtrFS for critical work loads. This tutorial will show you how to set up and configure Synology NAS Snapshots. Creating a 1 PB volume. 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 other day I did some housekeeping on my local files (directories renaming and moving) and when I backed up to the NAS the previous files got deleted and re-ordered directory structure with files got transferred again. Starting Syno Data Protection - Btrfs Snapshot Count Sync. 49-17. Click Snapshot > Snapshot List. 2. To check the space consumption of snapshots: 1. Go to Snapshot Replication > Snapshots. 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:. 03. touch foo. So now, we are with LUNs on top of BTRFS volume. Data integrity protection. 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. 2. 51 dB(A); Temperature: 24. There are options for adjusting thresholds, but I just went with the default command. Background noise: 16. Recommended for general use. Learn more. corruption through file self-healing and allows for the reversal of unintentional or malicious changes through fast snapshot technology. 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. Synology actually makes this part fairly easy. Snapshots are made in the source drive and should be turned on no matter if you do further steps. Data integrity protection. 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. Btrfs supports advanced storage technologies that meet the needs of modern business: • Advanced snapshot technology provides schedulable and near-instantaneous data protection of shared. I did have a pretty seamless transition to btrfs so it looks like I'm in business. Btrfs is a bit slower with writes because of its Copy-on-write nature, but just as fast when it comes to reads. Synology simply doesn't use BTRFS with all the features. 0 slot for an optional 10GbE add-in network interface card, or an M2D18 M. Optimal retention of Btrfs snapshots. features of Synology DSM, built on the advanced Btrfs file system. Hyper BackupSynology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. Once a writable snapshot is made, it can be treated as an alternate version of the original file system. Click Snapshot and choose Take a Snapshot. *. This setting only activates a fake "#snapshot" directory on the network share so clients that cannot access snapshots directly can still use them as simple files (which is a very helpful feature I must say). Configuring Snapshots can be easily done for any shared folder. Main features: Data protection features, including snapshot, replication, and point-in-time recovery. Nice effort but too simple to be useful. requires a dedicated block storage device such as a. You will see a confirmation message. Your data in safe hands with Btrfs 1. It is different than snapshots. If it doesn't, then the issue is the Synology patches to btrfs. Click Remove. In the BTRFS mode, snapshots are taken using the BTRFS file system. UUID=uuid /media/user/Backup btrfs noauto,user,compress-force=zstd:6. run to install the snapshot driver and agent. ledufakademy wrote::twisted: hello, i'm testing BTRFS wirh DSM 6. Thinking that we can purchase an RS815 and replicate the backups to that. I set AB to keep snapshots, default setting on DSM6 (3-1-7-4-12-3). jessfraz added the area/storage/btrfs label. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. So to make it more interesting, Synology uses mdraid for raid, then on top of it uses lvm ("pools" you see in the UI), and then on top of lvm it uses either ext4fs or btrfs ("volumes" in UI). The Btrfs file system is now supported on select Value series NAS. Click Delete to confirm the removal. However, empirical testing on multiple mixed-use systems showed a significant. We are assuming it is /dev/sda1. Your data is in safe hands. Learn more. These commands are more or less equivalent: btrfs fi defrag -czstd foo. You will see a confirmation message. You can see the number of snapshots taken within the selected time frame. We will build out a section below on how to configure this. 2 SSD adapter card4 • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder • Synology High Availability (SHA) providing continuousSynology also uses the btrfs snapshots. Follow instructions to set up as BTRFS. 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. HD-series. After extracting the downloaded file, follow the steps in the README file and execute sudo . 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. A continuación, os vamos a explicar brevemente las principales características de EXT4 y de Btrfs. Select Immutable snapshots and set Protection period. ; In the Set Replication Schedule page, select Immutable snapshots and set Protection period. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools. Other then that. 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. To use snapshots on your Synology, you must have a copy that supports the BTRFS file system. Data deduplication is only supported on Synology SSDs and Btrfs volumes. 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. Two G. btrfs 'd from command line) - like it does when trying to set up replication for iSCSI LUNs. Robust Data Protection with Btrfs DS1821+ supports a Btrfs file system optimized by Synology to offer both high reliability and high performance. The other day I did some housekeeping on my local files (directories renaming and moving) and when I backed up to the NAS the previous files got deleted and re-ordered directory structure with files got transferred again. 8. Enter the password of your DSM account and click Submit to confirm the removal of the volume. If you create a shared folder on a Btrfs volume, you can limit how much storage space it can use. Click Remove. However these changes are very minimal. If you have multiple Synology NAS, you can use Snapshot Replication to replicate data. Synology iSCSI storage fully. Thanks for providing your logs. I believe I could get the v4. The defrag option in the GUI made me lose 10TB free space. Hi! Come and join us at Synology Community. Btrfs is the recommended file system to use in most scenarios. 3. 993×870 102 KB. Configure scheduled snapshots and retention settings. File System ของคุณจะต้องเป็น. 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. Btrfs allows for multiple files to share the same on-disk data through the use cloned ranges. Click Remove. snapshot 0 is a pseudo-snapshot that is your root subvolume. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. As mentioned above, when picking between Btrfs vs. Enter the description for this snapshot. -Browse the Synology Snapshot Recovery dates. Conky probably reports the raw-disk usage, which is why, after snapshotting your volume, the reported number did not change. FS-series. Ask a question or start a discussion now. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Click OK to finish. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 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. If it is part of a snapshot, it is not freed. You will see a confirmation message. Click the upper right icon of the ext4 volume you want to remove. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. 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. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. txt The "-f" option sends the subvolume to the destination as a stdout file, i. 204. 1. Step 1. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. Supports snapshot features for shared folders in Btrfs volume and LUNs, including schedule, management, browse. 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. FS6400, FS3600, FS3410, FS3400, FS3017, FS2500, FS2017, FS1018. User quotas for each shared folder. Snapshot Replication (available on Synology NAS models that support Btrfs) includes options to take snapshots on demand or configure schedules and retention policies. 0 indicates that the files are restored to the main volume) and FILENAME is the path to the file to restore. It will copy the data for you and then. We begun testing BTRFS based "Snapshot and Replication" application rather than our own way of doing things. Perhaps, it's a faster processor. With scheduled snapshots, Snapshot Replication will automatically take snapshots at the pre-determined time and frequency, and it will thus lighten your workload to take. You can browse and restore snapshots using Snapshot Replication, File Station, Windows File Explorer, or other file protocols. Btrfs is a copy-on-write filesystem, so creating a clone is instantaneous. 6. A. Make a new Volume with the newer Btrfs file system to get snapshots, self-healing, and better mirroring. I hope this will avoid others the headhaches I suffered!Synology Knowledge Center offers comprehensive support, providing answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need. . /install. In your case the block (s) containing the directory listings have changed. So no more freezing, but now timeshift isn’t showing a size for any of my new snapshots. High-frequency protection with snapshots. Then view and remember the port for remote access open EaseUS Data Recovery Wizard and click "Next". Delete Synology Snapshots and Btrfs. For management flexibility, one. The thing is I don't fully understand what the advantages are of the 3rd scenario compared to the 2nd scenario. Another key difference is that Synology offers users the ability to use Ext4 or Btrfs, while QNAP is limited to Ext4 at this point.