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DSM Specifications
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Maximum Single Volume Size |
108 TB |
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Maximum Internal Volume Number |
64 |
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Supported RAID Type |
- Synology Hybrid RAID
- Basic
- JBOD
- RAID 0
- RAID 1
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RAID Migration |
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Volume Expansion with Larger HDDs |
- Synology Hybrid RAID
- RAID 1
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Volume Expansion by Adding a HDD |
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Notes |
- Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
- Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration.
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Internal Drives |
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External Drives |
- Btrfs
- ext4
- ext3
- FAT
- NTFS
- HFS+
- exFAT
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Notes |
Btrfs file system is available from DSM 7.2-64570. |
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File Protocol |
- SMB
- AFP
- NFS
- FTP
- WebDAV
- Rsync
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Maximum Concurrent SMB/AFP/FTP Connections |
100 |
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Windows Access Control List (ACL) Integration |
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NFS Kerberos Authentication |
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Notes |
The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed. |
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Maximum Local User Accounts |
1,024 |
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Maximum Local Groups |
256 |
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Maximum Shared Folder |
256 |
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Maximum Shared Folder Sync Tasks |
4 |
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Data & Folder Backup |
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Syslog Events per Second |
200 |
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Supported Protocols |
SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
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Supported Browsers |
- Chrome
- Firefox
- Edge
- Safari
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Supported Language |
English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, ???????, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Ceský, ???????, ???, ???, ????, ???? |
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Notes |
For an updated list of supported browser versions, check the DSM Technical Specifications. |
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Download Station
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Maximum Concurrent Download Tasks |
80 |
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Maximum iSCSI Target Number |
10 |
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Maximum LUN |
10 |
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LUN Clone/Snapshot, Windows ODX |
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DLNA Compliance |
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Facial Recognition |
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Maximum Snapshots per Shared Folder |
256 |
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Maximum of System Snapshots |
4,096 |
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Notes |
Snapshot Replication is available from DSM 7.2-64570. |
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Default Licenses |
2 (Additional cameras require purchase of licenses) |
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Suggested Maximum IP Cameras and Total FPS (H.264) |
- 1080p: 12 channels, 360 FPS
- 3M: 12 channels, 300 FPS
- 5M: 12 channels, 150 FPS
- 4K: 11 channels, 110 FPS
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Suggested Maximum IP Cameras and Total FPS (H.265) |
- 1080p: 12 channels, 360 FPS
- 3M: 12 channels, 360 FPS
- 5M: 12 channels, 350 FPS
- 4K: 12 channels, 200 FPS
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Notes |
- Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads.
- Use NVR Selector to quickly find a suitable model based on your requirements.
- The number of streams that can be viewed simultaneously is twice the suggested maximum number of cameras. For example, if the suggested maximum number of cameras for a model is 10 under H.264, 1080p, the model can support up to 20 streams of the same specification at the same time.
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Recommended Number of Concurrent Sync Clients |
200 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
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Recommended Number of Hosted Files |
500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) |
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Notes |
- Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
- Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
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Suggested Users |
500 |
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Notes |
- Suggested users is derived from testing in an environment with 60% idle users (each logging in and viewing documents) and 40% active users (each executing random actions at intervals of 20 to 40 seconds) operating within documents, each document having 30 users. Learn more
- Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
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Maximum Connections |
10 |