Synology DS1621XS+ |
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PERFORMANCE:
| Specs | Measure | DS1621xs+ |
|---|---|---|
| 10GbE iSCSI Random IOPS 4KB | Read IOPS/Write IOPS | 169967 / 74646 |
| 1GbE Web Server PHP Response Efficiency | Responses per second | 64731 |
| Aggregated 10GbE SMB Random IOPS 4KB | Read IOPS/Write IOPS | 132622 / 75114 |
| Aggregated 10GbE SMB Sequential Throughput 64KB | Read MBs/Write MBs | 3128 / 1890 |
| Aggregated 10GbE SMB Sequential Throughput via Encrypted Shared Folder 64KB | Read MBs/Write MBs | 2685 / 994 |
| SSD Cache 10GbE iSCSI random access 4KB | Read IOPS/Write IOPS | 113957 / 84015 |
| SSD Cache 10GbE SMB random access 4KB | Read IOPS/Write IOPS | 117203 / 84454 |
| Specs | DS1621xs+ |
Specification:
| Specs | Value |
|---|---|
| CPU-Model | Intel Xeon D-1527 |
| CPU Architecture | 64-bit |
| CPU Frequency | 4-core 2.2 (base) / 2.7 (turbo) GHz |
| Hardware Encryption Engine (AES-NI) | |
| System-memory | 8 GB DDR4 ECC SODIMM |
| Memory Module Pre-installed | 8 GB (8 GB x 1) |
| Total Memory Slots | 2 |
| Maximum Memory Capacity | 32 GB (16 GB x 2) |
| Notes | The specifications vary depending on system configuration and memory size. |
| Drive Bays | 6 |
| Maximum Drive Bays with Expansion Unit | 16 (DX517 x 2) |
| M2-slots | 2 (NVMe) |
| Maximum Single Volume Size* |
|
| Hot Swappable Drive | |
| RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
| RJ-45 10GbE LAN Port | 1 |
| USB 3.0 Port | 3 |
| eSATA Port | 2 |
| PCIe Expansion | 1 x Gen3 x8 slot (x8 link) |
| Internal Drives |
|
| External Drives |
|
| Size (Height x Width x Depth) | 166 mm x 282 mm x 243 mm |
| Weight | 5.3 kg |
| System Fan | 92 mm x 92 mm x 2 pcs |
| Fan Speed Mode |
|
| Easy Replacement System Fan | |
| Brightness Adjustable Front LED Indicators | |
| Power Recovery | |
| Noise Level* | 25.2 dB(A) |
| Scheduled Power On / Off | |
| Wake on LAN / WAN | |
| Power Supply Unit / Adapter | 250 W |
| AC Input Power Voltage | 100 V to 240 V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power-Consumption |
62.85 W (Access) 34.26 W (HDD Hibernation) |
| British Thermal Unit |
214.45 BTU/hr (Access) 116.89 BTU/hr (HDD Hibernation) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
| Relative Humidity | 5% to 95% RH |
| Certification |
|
| Warranty | 5 Years |
| Environment | RoHS Compliant |
| Packaging Content |
|
| Optional Accessories |
|
| Maximum Internal Volume Number | 256 |
| Maximum iSCSI Target Number | 256 |
| Maximum iSCSI LUN | 512 |
| iSCSI LUN Clone/Snapshot, Windows ODX | |
| SSD Read / Write Cache (White Paper) | |
| SSD TRIM | |
| RAID Group | |
| Supported RAID Type |
|
| RAID Migration |
|
| Volume Expansion with Larger HDDs |
|
| Volume Expansion by Adding a HDD |
|
| Global Hot Spare Supported RAID Type |
|
| File Protocol | CIFS/AFP/NFS/FTP/WebDAV |
| Maximum Concurrent CIFS/AFP/FTP Connections | 2,000 |
| Windows Access Control List (ACL) Integration | |
| NFS Kerberos Authentication | |
| Maximum Local User Accounts | 16,000 |
| Maximum Local Groups | 512 |
| Maximum Shared Folder | 512 |
| Maximum Shared Folder Sync Tasks | 32 |
| Synology High Availability | |
| Log Center | |
| Syslog Events per Second | 1,500 |
| VMware vSphere 6 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 |
|
| 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 |
| Antivirus by McAfee (Trial) | |
| Central Management System | |
| Synology Chat | |
| Maximum Users | 2,900 |
| Document Viewer | |
| Download Station | |
| Maximum Concurrent Download Tasks | 80 |
| exFAT Access (Optional) | |
| Synology MailPlus / MailPlus Server | |
| Free Email Accounts | 5 (Licenses required for additional accounts) |
| Maximum Number of Concurrent Users | 450 |
| Maximum Server Performance | 3,363,000 emails per day, approx. 102GB |
| Media Server | |
| DLNA Compliance | |
| Moments | |
| Facial Recognition | |
| Subject Recognition | |
| Auto Color & Rotate | |
| Moments Select | |
| Snapshot Replication | |
| Maximum Snapshots per Shared Folder | 1,024 |
| Maximum of System Snapshots | 65,536 |
| Surveillance Station | |
| Maximum IP cam (Licenses required) | 75 (including 2 Free License) (See All Supported IP Cameras) |
| Total FPS (H.264) |
2250 FPS @ 720p (1280x720) 1050 FPS @ 1080p (1920x1080) 600 FPS @ 3M (2048x1536) 400 FPS @ 5M (2591x1944) 280 FPS @ 4K (3840x2160) |
| Total FPS (H.265) |
2250 FPS @ 720p (1280x720) 2250 FPS @ 1080p (1920x1080) 1125 FPS @ 3M (2048x1536) 700 FPS @ 5M (2591x1944) 490 FPS @ 4K (3840x2160) |
| Synology Drive | |
| Recommended Number of Hosted Files | 3,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) |
| Recommended Number of Concurrent Sync Clients | 900 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
| Synology Office | |
| Video Station | |
| Virtual Machine Manager | |
| Recommended Virtual Machine Instances | 8 (Learn more) |
| VPN Server | |
| Maximum Connections | 40 |
| Specs | Value |
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