Skip to content

Synology DS1817+ 8-bay NAS Reviewed

The much anticipated, long awaited launch of the DiskStation DS1817+ from Synology has finally happened. The upgrade to Synology’s 5 and 8-bay DiskStation, which was first launched back in 2011, the DS1817+ is another 8-bay NAS system, but it’s much more comprehensive than previous models. It has been specifically designed to centralize storage.

Synology DiskStation DS1817+

In the center of this DiskStation is a Quad-core 2.4 GHz CPU that has an AES-NI hardware encryption engine, as well up to 16 GB in dual channel DDR RAM. These two components should make it possible for this NAS system to work well in environments that have high demand and us upwards of 1,179 MB/s in sequential reads. This NAS system can store a whopping 80TB on a single system using eight 10TB drives. This can be increased too, to a total of 180TB via an expansion unit, which is really quite remarkable. In addition to all of this, the DS1817+ also boasts four 1GbE LAN ports.

Of all the features this NAS devise offers, the most versatile one is the PCle Gen2 x 8 slot, which gives users the ability to install the dual M.2 SSD adapter card for use in high IOPS system caches, thus increasing the overall performance of the NAS. You also have the ability to install a 10GbE NIC in to the PCle slot for even better data transfers, if you would like.

Just like all of the NAS solutions that Synology offers, the DS1817+ is managed by DiskStation Manager (DSM). This DSM is currently in the 6.1 version, and it is a very powerful and highly comprehensive operating system. It offers a tremendous amount of ways to manage your DiskStation with ease. It includes a File Station, a file management tool that is truly easy to use and comes complete with a seamless drag-and-drop operation, as well as advanced search tools and filtering tools. It also offers Surveillance Station, which is a web-based application that manages IP cameras. A Cloud Station server is also available and offers a very comprehensive way to sync data from various platforms on a Synology NAS.

Backed by a 3-year warranty, the DiskStation DS1817+ is proving to live up to its much anticipated expectations.

DiskStation DS1817+ Design

The DS1817+ from Synology has a design that is very similar to the design of the DS1517+, which is evident upon looking at it, as both NAS systems have a plastic enclosure that is matte black in color. It offers 8 drive bays, all of which have a drive lock and status indicator, and can all easily be accessed by simply pressing on the lower portion of the tray and then pulling the handle out towards you.

On the top of the DS1817+, you will find a status and alert indicator, which lets you know the status of the NAS, as well as any warnings related to the fan or the temperature. On the right side is the both the power button and the LAN indicator. The LAN indicator shows the network connection status. Along the bottom right of the front panel is the USB 3.0 port. This gives you the ability to connect your external devices to the NAS, including your hard drives, a USB printer, and more.

The Synology logo on the side of the DS1817+ doubles as ventilation. The RAM is accessed through the bottom of the NAS; all you have to do is remove the screws to pop open the bottom of the panel.

On the back of the NAS, you’ll find two fans, which take up most of the space on the back panel. If one of the fans should stop operating properly, you will be alerted with a loud peeping sound. On the right of the system fans is a PCle expansion, and on the left is a power port. Just remove the screw and pull open the cover to access the PCle slot.

A Kensington Security Slot is located on the bottom of the back panel. An eSATA port, four LAN ports, three USB 3.0 ports, a reset button and a second eSATA port are also located along the back panel.

DS1817+ Features

The Synology DiskStation DS1817+ boasts a number of features. Some of the most notable features that this NAS offers include:

  • A 64 bit CPU architecture;
  • An Intel Atom C2538 CPU model;
  • Quad Core 2.4 GHz CPU frequency;
  • A Hardware Encryption Engine;
  • 2/8GB DDR3 system memory;
  • A 2GB memory module, which is pre-installed;
  • 2 memory slots;
  • Memory that can be expanded by up to 16Gb (2  x 8GB);
  • 8 storage drive bays; and
  • A total of 18 drive bays if the expansion unit is used.


Synology DiskStation Manager (DSM) is a Linux based software package. This is the foundation of DiskStation, which combines basic functions of file share, storage and backup. DSM offers an intuitive experience that offers a reliable storage solution with hardy features, including:

  • Stable security, which means that you don’t have to worry about any attacks because the physical host is always intact.
  • Extensive DSM features, including Mail Server, Cloud Station and other advanced storage features.

Surveillance Station 8.1 beta

Surveillance Station has been updated to 8.1 beta and provides even more reliability and convenience. It can now integrate with POS and Intercom cameras to provide a complete retail surveillance solution. As a result, you have a truly powerful central management platform to work with. On top of that, the Surveillance Station also offers support for GPU decoding, as well as HTML5, which proves to offer far greater performance and compatibility.

The Surveillance Station offers some pretty robust features; however, some of the most notable of these features include:

  • Home and Away modes for different recording behaviours;
  • POS integration for stores to align transactions with their corresponding video;
  • You have the ability to set I/O modules with different cameras, which lets you keep track of which camera triggers an event;
  • Bandwidth control, which means you’ll significantly reduce your network speeds when you’re running archiving tasks;
  • An easy-to-use interface to playback archive recordings;
  • Remote recording archiving resolves storage challenges with remote offices; and
  • Intercom camera integration giving you access to a wider range of feature rich cameras to include in your surveillance solution.

The Home and Away modes offer different notification settings and recording scheduling when you are at home and when you are away. This leads to reduce recording storage and eliminates those annoying notifications you receive while you are home. It also eliminates the feeling that you are constantly being watched while you are home. The home mode can be activated by simply setting up a schedule or by clicking on the control panel. It can also be enabled by “Geofence” on your DS Cam app. Talk about convenience.

Virtual Machine Manager beta

With Virtual Machine Manager, you will open up a world of possibilities. You will have the option to set up and run a variety of virtual machines, such as Windows, Linux, or Virtual DSM. With Virtual Machine Manager, you’ll be able to do all of this on just one Synology NAS. On top of that, you will be able to test out a new software version in a safe environment, secure the machines of your users, and even boost the flexibility of your server! The Virtual Disk Manager offers a reliable storage solution, which is packed with some impressive features.

While the Virtual Machine Manager offers a wealth of impressive features, some of the most notable highlights include:

  • It supports both Windows and Linux operating systems;
  • It allocates hardware resources, including CPU, RAM, computing power, storage space and network interfaces for each virtual machine you are working with;
  • Allows you to take snapshots for VMs as often as every 5 minutes;
  • Offers Live Migration from one Synology NAS to another, which helps to minimize the downtime of your system; and
  • Offers a multi-tenant environment so you can create several different isolated virtual machines for different departments or subsidiary businesses

With Virtual DSM, you won’t have to compromise your storage solutions. In fact, it will only help to enhance your storage, thanks to the robust features that it offers. That, combined with super stable security, and the Virtual Machine Manager is really an impressive piece of technology.


The Synology DiskStation DS1817+ was configured as follows:

  • RAM – 8GB
  • HDD #1 – Samsung 850 EVO 250GB SSD
  • HDD #2 – Samsung 850 EVO 250GB SSD

Samsung 850 EVO 250GB SSDs as our test drive

Hdparm was used to see how the unit performed with buffered and cached disk read speeds under RAID1 using the Btrfs filesystem:


Timing cached reads:   3770 MB in  2.00 seconds = 1885.57 MB/sec

Timing buffered disk reads: 1554 MB in  3.00 seconds = 517.83 MB/sec

Next up was connecting an Apple iMac to the NAS via a SMB share and running our favourite benchmark app:

Disk Speed Test under macOS Sierra (10.12.5)

Finding no problems saturating the gigabit link on the iMac, we moved our attention over to NAS to NAS performance. Over a single gigabit link our peaks were within expectations:

File copy from a QNAP TS-563

The Synology DS1817+ comes with 4 network ports and supports link aggregation. We enabled this for 3 of the ports and used Adaptive Load Balancing as that offers the best compatibility with most non-enterprise (e.g. SOHO) switches. Despite this not providing the full capabilities of link aggregation, we still achieved good results:

Using Adaptive Load Balancing

Finally, simulating 3 users simultaneously copying and writing to the DS1817+ showed some promising results in a shared environment:

Performance with concurrent usage

Final Thoughts

Overall, the Synology DiskStation DS1817+ is an excellent NAS system. It offers up to 80TB of storage on a single system, though that can be expanded to 180TB of storage with an expansion unit. We found that this system was very well designed, very easy to use and offered a wealth of features and powerful storage, making the DS1817+ an excellent option if you are looking to increase your storage needs.

If you are a small to medium enterprise or just a data hungry home user, we highly recommend you include the DS1817+ in your consideration basket for your next storage solution.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.