DSM Specifications
|
Maximum Single Volume Size*
|
108 TB
|
Maximum Internal Volume Number
|
64
|
SSD Read / Write Cache
|
SSD TRIM
|
Supported RAID Type
|
-
Synology Hybrid RAID
-
Basic
-
JBOD
-
RAID 0
-
RAID 1
-
RAID 5
-
RAID 6
-
RAID 10
|
RAID Migration
|
-
Basic to RAID 1
-
Basic to RAID 5
-
RAID 1 to RAID 5
-
RAID 5 to RAID 6
|
Volume Expansion with Larger HDDs
|
-
Synology Hybrid RAID
-
RAID 1
-
RAID 5
-
RAID 6
-
RAID 10
|
Volume Expansion by Adding a HDD
|
-
Synology Hybrid RAID
-
JBOD
-
RAID 5
-
RAID 6 (with Expansion Unit)
|
Global Hot Spare Supported RAID Type
|
-
Synology Hybrid RAID
-
RAID 1
-
RAID 5
-
RAID 6 (with Expansion Unit)
-
RAID 10 (with Expansion Unit)
|
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.
-
Each internal volume (may consist of multiple drives) is expandable up to 108TB.
|
File Protocol
|
SMB/AFP/NFS/FTP/WebDAV
|
Maximum Concurrent SMB/AFP/FTP Connections
|
500
|
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion)
|
2,000
|
Windows Access Control List (ACL) Integration
|
NFS Kerberos Authentication
|
Notes
|
-
Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
-
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.
|
Maximum Local User Accounts
|
2,048
|
Maximum Local Groups
|
256
|
Maximum Shared Folder
|
512
|
Maximum Shared Folder Sync Tasks
|
16
|
Maximum Hybrid Share Folders
|
10
|
Synology High Availability
|
Syslog Events per Second
|
800
|
Virtualization
|
Virtualization
|
VMware vSphere with VAAI
|
Windows Server 2016
|
Windows Server 2019
|
Citrix Ready
|
OpenStack
|
Networking Protocols
|
SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
|
Supported Browsers
|
-
Google Chrome
-
Firefox
-
Microsoft Edge
-
Safari
|
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
|
Notes
|
For an updated list of supported browser versions, check the
.
|
Add-on Packages
|
Antivirus by McAfee (Trial)
|
Antivirus by McAfee (Trial)
|
Maximum Number of Concurrent Users
|
150
|
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.
|
Document Viewer
|
Document Viewer
|
Download Station
|
Download Station
|
Download Station
|
Maximum Concurrent Download Tasks
|
80
|
Maximum iSCSI Target Number
|
128
|
Maximum LUN
|
256
|
LUN Clone/Snapshot, Windows ODX
|
Free Email Accounts
|
5
|
Maximum Number of Concurrent Users
|
150
|
Maximum Server Performance
|
1,484,000 emails per day, approx. 45GB
|
Notes
|
-
Models with more than 4 bays were installed with two SSDs for SSD cache.
-
For tested models with expandable memory, the maximum amount of RAM was installed.
-
The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
-
Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
|
DLNA Compliance
|
Facial Recognition
|
Maximum Snapshots per Shared Folder
|
1,024
|
Maximum of System Snapshots
|
65,536
|
Maximum IP cam
|
40 (including 2 Free License)
|
Total FPS (H.264)
|
1200 FPS @ 720p (1280x720)
800 FPS @ 1080p (1920x1080)
350 FPS @ 3M (2048x1536)
280 FPS @ 5M (2591x1944)
170 FPS @ 4K (3840x2160)
|
Total FPS (H.265)
|
1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
480 FPS @ 5M (2591x1944)
200 FPS @ 4K (3840x2160)
|
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.
|
Recommended Number of Concurrent Sync Clients
|
550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
|
Recommended Number of Hosted Files
|
50,000,000 (applies to files indexed or hosted by
. For file access through other standard protocols, refer to the File Services section above)
|
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.
-
For tested models with expandable memory, the maximum amount of RAM was installed.
-
Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
|
Maximum Users
|
1,800
|
Notes
|
-
Multiple files were opened for testing and each file was edited by 30 users simultaneously.
-
For tested models with expandable memory, the maximum amount of RAM was installed.
-
Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
|
Recommended Virtual Machine Instances
|
8
|
Recommended Virtual DSM Number
|
8 (including 1 Free License)
|
Notes
|
The specifications vary depending on system configuration and memory size.
|
Maximum Connections
|
40
|