Synology DiskStation DS918+ 4-Bay NAS Enclosure

Synology DiskStation DS918+, made for a variety of server roles such as backup, file storage, email servers, and domain controllers!

Technical Specifications

  • Intel Celeron J3455 Quad-Core 1.5GHz 2MB CPU
  • 8GB (2 x 4GB) DDR3L Synology SDRAM
  • 4TB (4 x 1TB) SATA III Solid State Drives for Ultra Fast Storage
  • 2 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support)
  • 2 x USB 3.0 Port
  • 1 x eSATA Port

Product Description

  • Form Factor: NAS Tower Server
  • Internal File System Format: EXT4, Btrfs
  • Ports: 2 x RJ-45 1GbE LAN Port (with Link Aggregation / Failover support); 2 x USB 3.0 Port; 1 x eSATA Port
  • Processor: Intel Celeron J3455 Quad-Core 1.5GHz 2MB CPU
  • Memory: 8GB (2 x 4GB) DDR3L Synology SDRAM
  • Storage: 4TB (4 x 1TB) SATA III Solid State Drives for Ultra Fast Storage
  • Power: Single Power Supply
  • Operating System: Synology DSM Software
  • NAS chassis comes in a sealed box.
  • Hard drives and memory upgrades included separately NOT installed, installation required.

Storage (HDD/SSD)

Number Vendor Model. Drive Size Drive Type Serial Number Firmware Version
Drive 1 WDC WD4003FFBX-68MU3NO 4 TB HDD V6GPVNYR 83.00A83
Drive 2 WDC WD4003FFBX-68MU3NO 4 TB HDD V6GPNT9R 83.00A83
Drive 3 Seagate ST8000VN004-3CP101 8 TB HDD WWZ9ANJP SC60
Drive 4 Seagate ST8000VN004-3CP101 8 TB HDD WWZ98CV6 SC60
Cache 1 Micron CT500P3PSSD8 500 GB SSD 234144652BE6 P9CR411
Cache 2 Micron CT500P3PSSD8 500 GB SSD 2341446527E0 P9CR411

Current Configuration

Storage Layout

  • 2x Western Digital Red Pro 4TB (WD4002FFWX)
    • 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache
    • Configuration: RAID 0 (striped)
    • Usable capacity: 7.3TB
    • Current usage: 4.1TB (57% full)
  • 2x Seagate IronWolf 8TB (ST8000VN004)
    • 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache
    • Configuration: RAID 1 (With data protection)
    • Usable capacity: 7.3TB
    • Current usage: TBD

Cache Configuration

  • 2x Crucial P3 Plus 500GB NVMe (CT500P3PSSD8)
    • PCIe Gen4 3D NAND NVMe M.2 SSD
    • NVMe M.2 SSD, up to 5000MB/s
    • Previous: 2x Samsung 970 EVO 250GB (replaced)
    • Total cache: 1TB – upgradable to 4TB
    • Configuration: Read/Write cache

Memory

  • Slot 1: 4GB (factory installed Synology SDRAM)
  • Slot 2: 4GB Timetec DDR3L-1866 (D3NS1866L-4G)
  • Total: 8GB DDR3L – maxed out

This project is for educational and home lab purposes.