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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SSD Read / Write Cache (White Paper) |
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SSD TRIM |
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Supported RAID Type |
- Synology Hybrid RAID
- Basic
- JBOD
- RAID 0
- RAID 1
- RAID 5
- RAID 6
- RAID 10
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RAID Migration |
- Basic to RAID 1
- Basic to RAID 5
- RAID 1 to RAID 5
- RAID 5 to RAID 6
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Volume Expansion with Larger HDDs |
- Synology Hybrid RAID
- RAID 1
- RAID 5
- RAID 6
- RAID 10
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Volume Expansion by Adding a HDD |
- Synology Hybrid RAID
- JBOD
- RAID 5
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Global Hot Spare Supported RAID Type |
- Synology Hybrid RAID
- RAID 1
- RAID 5
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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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File Protocol |
SMB/AFP/NFS/FTP/WebDAV
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Maximum Concurrent SMB/AFP/FTP Connections |
500
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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 |
2,048
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Maximum Local Groups |
256
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Maximum Shared Folder |
512
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Maximum Shared Folder Sync Tasks |
8
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Maximum Hybrid Share Folders |
10
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Folder and Package Backup |
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Entire System Backup |
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Notes |
Full-system backup requires DSM 7.2 or later.
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Synology High Availability |
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Syslog Events per Second |
800
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Networking 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 |
- Google Chrome
- Firefox
- Microsoft Edge
- Safari
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Supported Language |
English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
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Notes |
For an updated list of supported browser versions, check the DSM Technical Specifications.
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Antivirus by McAfee (Trial) |
Antivirus by McAfee (Trial)
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Maximum Number of Concurrent Users |
100
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Notes |
- Measured with simulated users, each with an average record of 20,000 messages, emojis, or stickers. The required server response time is below ten seconds.
- When applicable, systems are tested configured with maximum memory and set to allow the maximum number of connections.
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Document Viewer |
Document Viewer
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Download Station |
Download Station
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Maximum Concurrent Download Tasks |
80
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Maximum iSCSI Target Number |
128
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Maximum LUN |
256
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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 |
1,024
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Maximum of System Snapshots |
65,536
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Maximum IP cam (Licenses required) |
40 (including 2 Free License) (see all supported IP cameras)
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Total FPS (H.264) |
1200 FPS @ 720p (1280x720) 800 FPS @ 1080p (1920x1080) 350 FPS @ 3M (2048x1536) 280 FPS @ 5M (2591x1944) 170 FPS @ 4K (3840x2160)
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Total FPS (H.265) |
1200 FPS @ 720p (1280x720) 1200 FPS @ 1080p (1920x1080) 600 FPS @ 3M (2048x1536) 480 FPS @ 5M (2591x1944) 200 FPS @ 4K (3840x2160)
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Notes |
- Maximum IP cameras and FPS figures are tested with the device fully populated with drives and under a continuous recording setup.
- Actual system capabilities may differ depending on system configuration, drive performance, number of features enabled, and if additional workloads are present.
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Recommended Number of Concurrent Sync Clients |
350 (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 |
5,000,000 (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.
- Utilizing SSD cache can significantly improve performance.
- Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
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Maximum Users |
200
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Notes |
- Multiple files were opened for testing and each file was edited by 30 users simultaneously.
- 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 |
40
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