Synology DS3018xs Review


Synology unveiled its first 6-bay NAS, the DS3018xs, at Cebit in March 2017. It supports the optional dual M.2 SSD adapter card or 10GbE NIC for high-IOPS system cache and ultra-fast data transmission respectively. It can support up to 30 drives when used with two DX1215 expansion units. The DS3018xs sports a much newer dual-core 2.2GHz Celeron D1508 CPU. The XS series comes with 5-year warranty and advance hardware replacement through Synology Replacement Service (SRS).

Earlier this year, Synology also released the DS1817+ and DS1517+ which uses the 2.4GHz Atom C2538. Prosumers looking for a NAS might be tied between the DS1817+ and DS3018xs. Does their price difference warrant for the CPU, warranty duration and product replacement support? Compared to the DS1817+, the DS3018xs seems to be an energy guzzler.


DS3018xs DS1817+
Processor Intel Pentium D3018
Dual Core 2.2 GHz (2.6 GHz turbo)
Intel Atom C2538
Quad Core 2.4 GHz
Memory 8GB ECC
(Expandable to 32GB ECC)
2GB (1 x 2GB)/8GB (2 x 4GB)
(Expandable to 16GB)
Encryption Yes (AES-NI)
Storage 6 x 3.5"/2.5" SATA II/III; Hot Swappable
Maximum of 30 drives with DX1215
8 x 3.5"/2.5" SATA II/III; Hot Swappable
Maximum of 18 drives with DX517
Capacity Up to 72TB (6 x 12TB)
Up to 360TB with DX1215 expansion unit
(18 x 12TB)
Up to 96TB (8 x 12TB)
Up to 216TB with DX517 expansion unit
(18 x 12TB)
Networking 4 x 1GbE
Supports Link Aggregation/Failover
Connectors 3 x USB3.0
2 x Infiniband
4 x USB3.0
2 x eSATA
PCIe 1 x Gen3 x8 slot (x8 link)
Supporting SSD adapter card or Network Interface Card
1 x Gen2 x8 slot (x4 link)
Supporting SSD adapter card or Network Interface Card
Dimensions (mm) 166 x 282 x 243166 x 343 x 243
Warranty 5-year 3-year
(Optional 2-year extended warranty available)
SRS Yes No
Weight 5.2 kg 6.0 kg
Power Consumption126.89 W (Access)
56.92 W (HDD Hibernation)
61.5 W (Access)
31.6 W (HDD Hibernation)
System Fan 2 x 92mm 2 x 120mm
Noise Level25.5 dB(A) 22.2 dB(A)
SRPS$1,968 (8GB) S$1,450 (8GB)


2 thoughts on “Synology DS3018xs Review

  • December 31, 2017 at 7:04 pm

    Excellent pros / cons analysis of these two prosumer NAS. I much prefer the idea of having a Celeron / Xeon-D processor with ECC memory for my data (it used to be branded Xeon-D). But I don’t need ultimate CPU speed for my usage. And the extra 2 bays, lower at idle power consumption and lower price tip me towards the DS1817+.

  • January 3, 2018 at 10:58 am

    Thanks for the comment! I am still trying to figure out the workloads suitable for the DS3018xs. At the moment, virtual machine manager runs pretty well on this NAS!

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