Synology DiskStation DS918+ Manual
Synology DiskStation DS918+
Hardware Installation Guide
2
Table of Contents
Chapter 1: Before You Start
Package Contents 3
Synology DiskStation at a Glance 4
Safety Instructions 5
Chapter 2: Hardware Setup
Tools and Parts for Drive Installation 6
Install Drives 6
Start Up Your DiskStation 8
Add a Memory Module to DiskStation 8
Add a M.2 NVMe SSD to DiskStation 10
Chapter 3: Install DSM on DiskStation
Install DSM with Web Assistant 11
Learn More 11
Appendix A: Specications
Appendix B: LED Indicator Table
Synology_QIG_DS918+_20170614
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Chapter
Thank you for purchasing this Synology product! Before setting up your new DiskStation, please check the
package contents to verify that you have received the items below. Also, make sure to read the safety instructions
carefully to avoid harming yourself or damaging your DiskStation.
Package Contents
Main unit x 1 AC power cord x 1
AC power adapter x 1
Screws for 2.5” hard drives x 18 Hard drive tray key x 2 RJ-45 LAN cable x 2
Before You Start
4Chapter 1: Before You Start
Synology DiskStation at a Glance
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9
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No. Article Name Location Description
1 Status Indicator
Front Panel
Displays the status of the system. For more information, see "Appendix B:
LED Indicator Table".
2 Disk Indicator Displays the status of the installed drive. For more information, see
"Appendix B: LED Indicator Table".
3 Drive Tray Lock Lock or unlock drive trays.
4 USB 3.0 Port Connect external drives or other USB devices to the DiskStation here.
5 Power Button
1. Press to power on the DiskStation.
2. To power off the DiskStation, press and hold until you hear a beep
sound and the Power LED starts blinking.
6 LAN Port
Back Panel
Connect network cables here.
7 RESET Button
1. Press and hold until you hear a beep sound to restore the default IP
address, DNS server, and passwords for the admin account.
2. Press and hold until you hear a beep sound, then press and hold
again until you hear three beep sounds to return the DiskStation to
“Not installed” status so that DiskStation Manager (DSM) can be
reinstalled.
8 eSATA Port Connect external SATA drives or Synology Expansion Unit1to the
DiskStation here.
9 Power Port Connect the AC power adapter here.
10 Fan Disposes of excess heat and cools the system. If the fan malfunctions,
the DiskStation will emit a beeping sound.
11 Kensington Security Slot Attach a Kensington security lock here.
12 USB 3.0 Port Connect external drives or other USB devices to the DiskStation here.
1For more information about Synology Expansion Unit supported by your DiskStation, please visit www.synology.com.
5Chapter 1: Before You Start
Safety Instructions
Keep away from direct sunlight and away from chemicals. Make sure the environment does not
experience abrupt changes in temperature or humidity.
Place the product right side up at all times.
Do not place near any liquids.
Before cleaning, unplug the power cord. Wipe with damp paper towels. Do not use chemical or
aerosol cleaners.
To prevent the unit from falling over, do not place on carts or any unstable surfaces.
The power cord must plug in to the correct supply voltage. Make sure that the supplied AC voltage is
correct and stable.
To remove all electrical current from the device, ensure that all power cords are disconnected from
the power source.
Risk of explosion if battery is replaced with an incorrect type. Dispose of used batteries appropriately.
6
2
Chapter
Tools and Parts for Drive Installation
• A screwdriver (only for 2.5" drives)
• At least one 3.5” or 2.5” SATA drive (please visit www.synology.com for compatible drive models.)
Warning: If you install a drive that contains data, the system will format the drive and erase all existing data. Please
back up any important data before installation.
Install Drives
1 Pull out the drive bay which you are installing the drive into.
2 Load drives in the drive trays.
• For 3.5” drives: Remove the fastening panels from the sides of the drive tray. Place the drive in the drive
tray. Then insert the fastening panels to secure the drive in place.
Hardware Setup
7Chapter 2: Hardware Setup
• For 2.5” drives: Remove the fastening panels from the sides of the drive tray and store them in a safe
place. Place the drive in the blue area (shown below) of the drive tray. Turn the tray upside down and tighten
the screws to secure the drive in place.
3 Insert the drive tray into the empty drive bay and push it back until you hear a click when the tray is locked into
place.
4 Repeat the steps above to assemble the other drives you have prepared.
5 Drives are numbered as shown below:
1234
1234
Note: If you want to create a RAID volume, we recommend that all installed drives are of the same size to make the
best use of drive capacity.
8Chapter 2: Hardware Setup
Start Up Your DiskStation
1 Use the LAN cable to connect the DiskStation to your switch, router, or hub.
2 Connect the AC adapter to the power port of the DiskStation. Connect one end of the AC power cord to the AC
power adapter, and the other to the power outlet.
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2
3 Press the power button.
Congratulations! Your DiskStation is now online and detectable from a network computer.
Add a Memory Module to DiskStation
The optional Synology memory module is designed for DiskStation memory expansion. Follow the steps below to
install, check, or remove a memory module on your DiskStation.
To install a memory module:
1 Shut down your DiskStation. Disconnect all cables connected to your DiskStation to prevent any possible
damages.
2 The memory slots are located inside your DiskStation.
3 Remove the four drive trays and you will see a pre-installed memory module and an empty slot for memory
expansion.
Important:
1. When you remove the drive trays, you expose sensitive internal components. Avoid touching anything other than
the memory assembly when you remove or add a memory module.
2. Do not remove the pre-installed memory module to prevent voiding product warranty.
4 Insert the new memory module into the empty slot:
a Align the notch on the gold contacts of the memory module with the notch on the empty slot. Insert the
memory module into the slot. Make sure the module is properly inserted.
b Push down on the memory module with moderate pressure until you hear a click. If you nd the module
difcult be pushed down, push outwards the lever with your ngers as shown below.
9Chapter 2: Hardware Setup
Important: Hold the memory module by its edge, and do not touch the gold contacts.
Note: Synology will not provide complete product warranty or technical support if a non-Synology memory module is
used for memory upgrade.
5 Insert the four drive trays back into the drive bays.
6 Reconnect the cables you removed in step 1, and then press and hold the power button to turn on your
DiskStation.
To make sure DiskStation recognizes the new memory capacity:
1 Install DiskStation Manager (DSM). Please see the next chapter for more information.
2 Log into DSM as admin or a user belonging to the administrators group.
3 Check Total Physical Memory in Control Panel > Info Center.
If your DiskStation does not recognize the memory or does not start up successfully, please make sure that the
memory module is installed correctly.
To remove the memory module:
1 Shut down your DiskStation. Disconnect all cables connected to your DiskStation to prevent any possible
damages.
2 Remove the four drive trays and you will see the installed module to be removed.
3 Pull the levers on both sides of the memory module outwards. The memory module will be released from the
slot.
4 Hold the memory module by its notches and remove it from the slot.
5 Insert the drive trays back into the drive bays.
6 Reconnect the cables removed in step 1. Now you may turn on your DiskStation.
10 Chapter 2: Hardware Setup
Add a M.2 NVMe SSD to DiskStation
You may install up to two M.2 NVMe 2280 SSDs to your DiskStation for creating SSD cache volume. Follow the
steps below for SSD module installation / removal.
To install a M.2 NVMe SSD module:
1 Shut down your DiskStation. Disconnect all cables connected to your DiskStation to prevent any possible
damages.
2 The SSD slots are located at the bottom of your DiskStation.
3 Remove the two lids protecting the modules to be installed. You will see two empty slots, numbered as below.
1
2
Important: Hold the SSD module by its edge, and do not touch the gold contacts.
4 Start from the rst slot. Insert your SSD module into the empty slot:
a Align the notch on the gold contacts of the SSD module with the notch on the empty slot. Insert the module
into the slot. Make sure the module is properly inserted.
b Push outwards the lever with your nger, as shown below. While holding the lever, push down the SSD
module, and then release the lever to secure the SSD module. Put the lids back in their places.
5 Reconnect the cables you removed in step 1, and then press and hold the power button to turn on your
DiskStation.
6 Repeat the steps above to install the other SSD module into the second slot, if needed.
To remove the M.2 NVMe SSD module:
1 Shut down your DiskStation. Disconnect all cables connected to your DiskStation to prevent any possible
damages.
2 Push outwards the lever with your nger. The module will pop up and be released from the slot.
3 Hold the SSD module and remove it from the slot. Put the lids back in their places.
4 Reconnect the cables removed in step 1. Now you may turn on your DiskStation.
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