DSM Specifications |
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Maximum Single Volume Size
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- 1 PB (64 GB memory required, for RAID 6 groups only)
- 200 TB (32 GB memory required)
- 108 TB
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Maximum Internal Volume Number
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256
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SSD Read/Write Cache (Determining cache size)
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SSD TRIM
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RAID Group
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Supported RAID Type
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- RAID F1
- Basic
- JBOD
- RAID 0
- RAID 1
- RAID 5
- RAID 6
- RAID 10
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RAID Migration
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- 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
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- RAID F1
- RAID 1
- RAID 5
- RAID 6
- RAID 10
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Volume Expansion by Adding a HDD
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Global Hot Spare Supported RAID Type
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- RAID F1
- RAID 1
- RAID 5
- RAID 6
- RAID 10
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Notes
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- Volumes over 108 TB require 32 GB of memory or more.
- Actual maximum storage pool and volume sizes vary depending on drives used, the number of drive bays available, and the RAID configuration.
- 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.
- When Peta Volume is enabled, validated services and packages are required. Please refer to this article for more information on limitations.
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Internal Drives
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External Drives
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- Btrfs
- ext4
- ext3
- FAT32
- NTFS
- HFS+
- exFAT
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File Protocol
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Maximum Number of SMB Connections (FSCT-Based)
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2,700
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Windows Access Control List (ACL) Integration
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NFS Kerberos Authentication
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Notes
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- Connection value of this model is tested with Synology SATA SSD fully populated and up to four 10GbE network ports
- Models with expandable memory are tested with the maximum supported quantity installed.
- SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration:
- Test workload: HomeFolder scenario provided by the FSCT tool
- Test duration: 600 seconds
- Domain controller & FSCT controller: Windows Server 2022
- FSCT clients: 8 × Windows 10 machines
- SMB feature: Directory leasing enabled
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Maximum Local User Accounts
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10,240
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Maximum Local Groups
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512
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Maximum Shared Folder
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512
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Maximum Shared Folder Sync Tasks
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32
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Hybrid Share Folder Number
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30
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Folder and Package Backup
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Entire System Backup
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Notes
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Full-system backup requires DSM 7.2 or later.
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Synology High Availability
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Syslog Events per Second
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3,000
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Virtualization |
Virtualization
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VMware vSphere
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ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5
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Microsoft Hyper-V
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Windows Server 2022, Windows Server 2019, Windows Server 2016
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Citrix XenServer
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XenServer 8, Citrix Hypervisor 8.2 LTSR CU1
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OpenStack
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Cinder
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Supported Protocols
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SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
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Supported Browsers
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Supported Language
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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
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For an updated list of supported browser versions, check the DSM Technical Specifications.
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Synology AI Console |
Synology AI Console
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Synology AI Console
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Third-Party AI Model Integration
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Maximum De-Identification Rate
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2,700 words per second
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Notes
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- De-identification performance measurement: Filters for Credit Card Numbers, IBAN, Individual Taxpayer Identification Number, SSN, and Names applied to a 4,355-word English text.
- To enable de-identification, your device must have at least 8 GB of memory and Container Manager installed.
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Suggested Users
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600
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Notes
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- 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.
- Models with expandable memory are tested with the maximum supported quantity installed.
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Maximum iSCSI Target Number
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256
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Maximum LUN
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512
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LUN Clone/Snapshot, Windows ODX
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Free Email Accounts
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5 (Additional accounts require purchase of licenses)
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Suggested Users
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5,800
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Notes
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- The suggested maximum number of users is based on the following workload: 20% of users with a 20,000 item mailbox randomly performing actions and receiving 240 emails per day, and 80% of users receiving 20 emails per day. Learn more
- Models with SSD support are tested with a single SSD volume.
- Models with expandable memory are tested with the maximum supported quantity installed. Learn more about memory requirements.
- Operating in high-availability mode will incur additional overhead.
- Features enabled during evaluation: anti-spam, anti-virus, DNSBL, greylist, content scanning, and full-text search (English).
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Maximum Snapshots per Shared Folder
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1,024
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Maximum of System Snapshots
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65,536
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Default Licenses
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2 (Additional cameras require purchase of licenses)
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Suggested Maximum IP Cameras and Total FPS (H.264)
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- 1080p: 160 channels, 3840 FPS
- 3M: 160 channels, 1600 FPS
- 5M: 120 channels, 1200 FPS
- 4K: 80 channels, 800 FPS
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Suggested Maximum IP Cameras and Total FPS (H.265)
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- 1080p: 200 channels, 6000 FPS
- 3M: 160 channels, 2800 FPS
- 5M: 160 channels, 1600 FPS
- 4K: 120 channels, 1200 FPS
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Notes
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- Surveillance Station 9.1.3 or above is required to support the maximum IP cameras and FPS figures listed.
- 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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Suggested Users
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5,000
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Maximum Number of Hosted Files
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50,000,000 (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
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- The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more
- Models with SSD support are tested with a single SSD volume.
- Models with expandable memory are tested with the maximum supported quantity installed.
- 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
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4,800
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Notes
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- The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more
- Models with SSD support are tested with a single SSD volume.
- Models with expandable memory are tested with the maximum supported quantity installed.
- Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
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Recommended Virtual Machine Instances
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24 (Learn more)
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Recommended Virtual DSM Number (Licenses required)
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24 (including 1 Free License)
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Notes
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The specifications vary depending on system configuration and memory size.
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Maximum Connections
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32
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