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Hardware Specifications CPU CPU Model Intel Pentium D1508 CPU Architecture 64-bit CPU Frequency Dual Core 2.2 GHz 2.2 (base) / 2.6 (turbo) GHz Hardware Encryption Engine (AES-NI) Memory System Memory 8 GB DDR4 ECC SO-DIMM Memory Module Pre-installed 8GB (1 x 8GB) Total Memory Slots 2 Memory Expandable up to 32 GB (16 GB x 2) Storage Drive Bays 6 Maximum Drive Bays with Expansion Unit 30 Compatible Drive Type* - 3.5" SATA HDD
- 2.5" SATA HDD
- 2.5" SATA SSD
Maximum Internal Raw Capacity 60 TB (10 TB drive x 6) (Capacity may vary by RAID types) Maximum Raw Capacity with Expansion Units 300 TB (10 TB drive x 30) (Capacity may vary by RAID types) Maximum Single Volume Size - 200 TB (32GB RAM required, for RAID 5 or RAID 6 groups only)
- 108 TB
Hot Swappable Drive Notes - "Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
- The maximum single volume size is not directly related to the maximum raw capacity.
- Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB or 200TB if upgraded to 32GB RAM or more.
External Ports RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) USB 3.0 Port 3 Expansion Port 2 PCIe PCIe Expansion 1 x Gen3 x8 slot (x8 link) Add-in-card support M2D17 - Dual M.2 SSD adapter card for SSD cache Notes DS3018xs with M2D17 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported. File System Internal Drives - Btrfs
- EXT4
External Drives - Btrfs
- EXT4
- EXT3
- FAT
- NTFS
- HFS+
- exFAT*
Notes exFAT Access is purchased separately in Package Center. Appearance Size (Height x Width x Depth) 166 mm x 282 mm x 243 mm Weight 5.2 kg Others System Fan 92 mm x 92 mm x 2 pcs Fan Speed Mode - Full-Speed Mode
- Cool Mode
- Quiet Mode
Easy Replacement System Fan Wireless Support (dongle) Brightness adjustable front LED indicators Power Recovery Noise Level* 25.5 dB(A) Scheduled Power On/Off Wake on LAN/WAN Power Supply Unit / Adapter 250W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption* 126.89 W (Access)
56.92 W (HDD Hibernation)British Thermal Unit 433.27 BTU/hr (Access)
194.35 BTU/hr (HDD Hibernation)Environment Temperature Operating Temperature 5°C to 40°C (40°F to 104°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Certification - FCC Class B
- CE Class B
- BSMI Class B
Warranty 5 Years Notes - Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
- Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications Storage Management Maximum Internal Volume Number 1024 Maximum iSCSI Target Number 64 Maximum iSCSI LUN 512 iSCSI LUN Clone/Snapshot, Windows ODX RAID Group Supported RAID Type - RAID F1
- 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 - RAID F1
- RAID 1
- RAID 5
- RAID 6
Volume Expansion by Adding a HDD - RAID F1
- RAID 5
- RAID 6
- JBOD
Global Hot Spare Supported RAID Type - RAID F1
- RAID 1
- RAID 5
- RAID 6
- RAID 10
SSD Support SSD Read/Write Cache SSD TRIM File Sharing Capacity Maximum Local User Accounts 16000 Maximum Local Groups 512 Maximum Shared Folder 512 Maximum Shared Folder Sync Tasks 16 Maximum Concurrent CIFS/AFP/FTP Connections 2000 Windows Access Control List (ACL) Integration NFS Kerberos Authentication High Availability Manager Log Center Syslog Events per Second 1500 Virtualization VMware vSphere 6 with VAAI Windows Server 2012 Windows Server 2012 R2 Citrix Ready OpenStack Add-on Packages Antivirus by McAfee (Trial) Central Management System Chat Maximum Users 2000 Notes - The number of concurrent HTTP connections for Chat was configured to the maximum.
- CPU and RAM usage were both under 80% when the number of maximum users was reached.
- For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server Maximum Number of Concurrently Connected Devices 2000 Maximum Number of Concurrently Connected Devices (with RAM expansion) 8000 Maximum Number of Synced Files (btrfs) 1,000,000 / single file reaction time 640 ms Maximum Number of Synced Files (ext4) 1,000,000 / single file reaction time 387 ms Notes - The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
- File reaction time refers to the preparation time required for other devices to start downloading a 1KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
- Non-encrypted shared folders were used during the aforementioned testing.
Document Viewer Download Station Maximum Concurrent Download Tasks 80 exFAT Access (optional) MailPlus / MailPlus Server Free Email Accounts 5 Recommended MailPlus Client Number Up to 200 (Btrfs) / 200 (EXT4) Maximum Server Performance 1,616,000 (Btrfs) / 1,782,000 (EXT4) emails per day, approx. 49.31 GB (Btrfs) / 54.38 GB (EXT4) Notes - The CPU and RAM usages were both under 80% when testing recommended client numbers.
- For tested models with expandable memory, the maximum amount of RAM was installed.
- Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units 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).
Media Server DLNA Compliance Office Maximum Users 400 Maximum Simultaneous Editing Users 80 Notes - CPU and RAM usage were both under 80% when the number of maximum users was reached.
- 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
PetaSpace Snapshot Replication Maximum Snapshots per Shared Folder 1024 Maximum Snapshots of all Shared Folder 65536 Surveillance Station Maximum IP cam (Licenses required) 75 (including 2 Free License) Total FPS (H.264)* 2250 FPS @ 720p (1280x720)
1050 FPS @ 1080p (1920×1080)
600 FPS @ 3M (2048x1536)
450 FPS @ 5M (2591x1944)
320 FPS @ 4K (3840x2160)Total FPS (MJPEG)* 600 FPS @ 720p (1280x720)
360 FPS @ 1080p (1920×1080)
240 FPS @ 3M (2048x1536)
192 FPS @ 5M (2591x1944)Total FPS (H.265)* 2250 FPS @ 720p (1280x720)
2250 FPS @ 1080p (1920×1080)
1125 FPS @ 3M (2048x1536)
600 FPS @ 5M (2591x1944)
500 FPS @ 4K (3840x2160)Notes Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera. Video Station Video Transcoding Group 1 - Type 1 Maximum Transcoding Channel Number 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1 VPN Server Maximum Connections 30 Environment & Packaging Environment RoHS Compliant Packaging Content - Main Unit X 1
- Accessory Pack X 1
- AC Power Cord X 1
- RJ-45 LAN Cable X 2
- Quick Installation Guide X 1
Optional Accessories - Surveillance Device License Pack
- 16GB DDR4 ECC SO-DIMM
- Expansion Unit: DX1215 X 2
- VS360HD
- VS960HD
- Synology Ethernet Adapter E10G15-F1
- Synology Ethernet Adapter E10G17-F2
- Synology M2D17 M.2 SSD adapter card
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