Synology NAS FS3400 Manual

Hardware Installation Guide
Synology NAS FS3400

Table of Contents
Chapter 1: Before You Start
Package Contents 3
Synology FS3400 at a Glance 4
Hardware Specication 5
Optional Accessories 6
Safety Instructions 8
Chapter 2: Hardware Setup
Tools and Parts for Component Installation 9
Install Drives 9
Install Memory Modules 11
Install PCle Add-in Cards 13
Install and Remove Rail Kits 15
Expansion Unit Deployment and Topology 17
Start up Your Synology NAS 20
LED Indicator Table 22
Chapter 3: System Maintenance
Replace System Fan 23
Replace Power Supply Unit (PSU) 25
Initial Troubleshooting Guide 25
Chapter 4: Install DSM on Synology NAS
Install DSM with Web Assistant 26
Learn More 26
Synology_HIG_FS3400_20190325
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Synology NAS FS3400 is an enterprise server consisting of both system hardware and the software operating
system, DiskStation Manager (DSM). This manual will guide you through all conguration aspects of your
FS3400, including the hardware components, setup procedures, system maintenance, and initial troubleshooting
instructions.
Note: All images below are for illustrative purposes only, and may di󰀨er from the actual product.
Package Contents
Main unit x 1 AC power cord x 2
Screws for 2.5” drives x 100
Before You Start 1
Chapter
3
3

4Chapter 1: Before You Start
Synology FS3400 at a Glance
81110
15 1614
13
12
9
17
No. Article Name Location Description
1 Power Button and Indicator
Front
1. Press to power on your FS3400.
2. To power o󰀨 the FS3400, press and hold until you hear a beep sound
and the Power LED starts blinking.
2 Status Indicator Displays the status of the system. For more information, see "LED
Indicator Table".
3 Alert Indicator Displays warnings regarding fan or temperature. For more information,
see "LED Indicator Table".
4 Beep O󰀨 Button Press to deactivate the beeping sound that is emitted when a malfunction
occurs.
5 Drive Status Indicator Displays the status of drives. For more information, see "LED Indicator
Table".
6 Drive Tray Install drives (hard disk drives or solid state drives) here.
7 Rail Kit Release Tab Push in and hold to release your FS3400 from the rail kit lock.1
8 Power Port
Back
Connect power cords here.
9 PSU Indicator and Beep O󰀨
Button
1. Displays the status of the power supply unit (PSU). For more
information, see "LED Indicator Table".
2. Press to deactivate the beeping sound that is emitted when a
malfunction occurs.
10 PSU Fan Disposes of excess heat and cools the PSU.
11 Console Port This port is reserved for manufacturing use only.
12 PCI Express Expansion Slot Supports one PCIe x8 add-on network interface card.
13 SAS OUT Port Connect Synology Expansion Unit to the SAS OUT port on the right side.2
14 1GbE LAN Port Connect RJ-45 network cables here.
15 10GBase-T LAN Port Connect RJ-45 network cables here.
16 USB 3.0 Port Connect external drives, USB printers, or other USB devices to your
FS3400 here.
17 RESET Button
1. Press and hold until you hear a beep sound to restore the default IP
address, DNS server, and password 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 FS3400 to “Not
Installed” status so that DiskStation Manager (DSM) can be reinstalled.
1For more information about the rail kit installation, please refer to the Quick Installation Guide that comes with the rail kit.
2For more information about Synology Expansion Unit supported by your Synology NAS, please visit www.synology.com.

5Chapter 1: Before You Start
Hardware Specication
Item FS3400
Internal Drive 2.5" SAS drive (SSD and HDD) or SATA SSD x 24
Maximum Internal Raw
Capacity 184.32 TB (7.68 TB drive x 24)
External Device Port • USB 3.0 x 2
• SAS OUT x 1
LAN Port • 1GbE (RJ-45) x 4
• 10GBase-T (RJ-45) x 2
PCIe Slot Gen3 x8 slot (x8 link) x 1
Size (H x W x D) (mm) • 88 x 482 x 724 (Including rack mount kits)
• 88 x 430.5 x 692 (Not including rack mount kits)
Weight (kg) 14.9
Supported Client • Windows 7 onward
• Mac OS X 10.10 onward
File System • Internal: Btrfs, ext4
• External: Btrfs, ext4, ext3, FAT, NTFS, HFS+, exFAT1
Supported RAID Type • Basic • JBOD • RAID 0 • RAID 1
• RAID 5 • RAID 6 • RAID 10 • Synology RAID F1
Agency Certication • FCC Class A • CE Class A • BSMI Class A
HDD Hibernation Yes
Scheduled Power On/O󰀨 Yes
Wake on LAN Yes
Language Localization
Environment Requirement
• Line voltage: 100V to 240V AC
• Frequency: 50 / 60Hz
• Operating Temperature: 32 to 95˚F (0 to 35˚C)
• Storage Temperature: -5 to 140˚F (-20 to 60˚C)
• Relative Humidity: 5% to 95% RH
Note: Model specications are subject to change without notice. Please refer to www.synology.com for the latest information.
1Support for exFAT can be enabled by purchasing and downloading exFAT Access in Package Center.

6Chapter 1: Before You Start
Optional Accessories
With Synology accessories, you can customize your Synology NAS to t di󰀨erent business environments without
worrying about compatibility and stability. Visit www.synology.com/compatibility for more information.
• Memory Module
Model Name Picture Description
D4RD-2666-16G 16GB DDR4-2666 ECC
Registered DIMM
D4RD-2666-32G 32GB DDR4-2666 ECC
Registered DIMM
• PCIe Add-in Card
Model Name Picture Description
E10G18-T2 Dual-port, 10GbE RJ-45
Network Interface Card
E10G18-T1 Single-port, 10GbE RJ-45
Network Interface Card
E10G17-F2 Dual-port, 10GbE SFP+ Network
Interface Card

7Chapter 1: Before You Start
• Expansion Unit
Model Name Picture Description
RX1217sas
2U 12-bay Rackmount type
expansion unit, compatible with
3.5”/2.5” SAS/SATA drives
RX2417sas
2U 24-bay Rackmount type
expansion unit, compatible with
2.5” SAS/SATA drives
• Rail Kit
Model Name Picture Description
RKS1317 Sliding rails
• Spare Part
Model Name Picture Description
Disk Tray (Type R1) 2.5" Drive Tray
FAN 80*80*32_6 System Fan Module
PSU 500W-RP
Module_2 Redundant PSU Module
PSU 500W-RP SET_2 Redundant PSU Set (Cage x 1, PSU
Module x 2)

8Chapter 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.

Tools and Parts for Component Installation
Please prepare the tools and parts below before setting up your Synology NAS:
• A Screwdriver
• At least one 2.5” SSD (SAS/SATA) or HDD (SAS only) (please visit www.synology.com/compatibility 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.
• Rail mounting kit (please see the Optional Accessories section to nd out the suitable rail kit for cabinet
installation)
Warning: We suggest mounting your Synology NAS on a cabinet before installing any drives since the heavy weight
will increase the installation di󰀩culty.
Install Drives
Please follow the steps below for drive installation:
1 Open the drive tray.
a Find the small button located on the bottom side of the drive tray handle. Press the button down, and the
drive tray handle will pop out.
b Pull the drive tray handle out as illustrated above.
2 Place the drive in the drive tray. Tighten screws into the four spots indicated below to secure the drive.
Hardware Setup
9
2
Chapter

10 Chapter 2: Hardware Setup
3 Insert the loaded drive tray into the empty drive bay.
Note: Make sure the tray is pushed in all the way. Otherwise, the drive might not be able to function properly.
4 Push the handle inward to secure the drive tray.
5 Push the switch on the drive tray handle to the bottom to lock the drive tray.
6 Repeat the steps above to assemble the other drives you have prepared.
7 Drives are numbered as shown below.
Note: We suggest installing drives of the same size to optimize drive capacity usage when creating RAID volumes.

11 Chapter 2: Hardware Setup
Install Memory Modules
You must install genuine Synology memory module(s) to ensure system compatibility and reliability. Please install
memory module(s) into the slots as indicated below.
The following table shows the memory conguration for best practice. You must follow the conguration below
when upgrading your memory capacity, otherwise system performance and stability may su󰀨er.
A0 A1 B0 B1 Total Memory
16GB - - - 16GB
32GB - - - 32GB
16GB - 16GB - 32GB
16GB 16GB 16GB - 48GB
16GB 16GB 16GB 16GB 64GB
32GB - 32GB - 64GB
32GB 32GB 32GB - 96GB
32GB 32GB 32GB 32GB 128GB
Follow the steps below to install, check, or remove a memory module on your FS3400.
To install the RAM module:
1 Shut down your FS3400. Disconnect all cables connected to your FS3400 to prevent any possible damage.
2 Remove the screw on the back of FS3400. Pull the rear top cover, and put it aside.
Note: When you remove the rear top cover, you are exposed to sensitive internal components. Avoid touching
anything other than the memory assembly when you remove or add memory.

12 Chapter 2: Hardware Setup
3 Insert the new memory module in the slot:
a Push the retaining clips on the slot out to the sides.
b Align the notch on the gold edge of the module with the notch in the memory slot.
c Push down on the memory module with rm and even pressure. The retaining clips will snap into position as
the module is correctly inserted.
Note: Hold the memory module by its edges, and do not touch the gold connectors.
4 Put back the rear top cover you lifted in step 2.
a Align the hexagons at the side of rear top cover with the slots on the chassis’ edge, and push the rear top
cover back in position.
b Put back and fasten the screw you removed in step 2.

13 Chapter 2: Hardware Setup
To make sure FS3400 recognizes the new memory capacity:
1 Log in to DSM as admin or a user belonging to the administrators group.
2 Check Total Physical Memory in Control Panel > Info Center.
To remove the RAM Module:
1 Follow step 1 and 2 of the To install the RAM module section to shut down your FS3400, disconnect the
cables, and then remove the rear top cover.
2 Cut the cable tie before removing the memory module. (The pre-installed memory module is cable tied to
prevent loosening during delivery.)
Note: Avoid touching any components of the motherboard when you cut the cable tie.
3 Disengage the memory retaining clips by pushing them outwards, and the module will pop out of the slot.
4 Follow step 4 of the To install the RAM module section to put back the top cover.
Install PCle Add-in Cards
FS3400 provides one PCIe x8 slot for optional add-in card expansion, allowing network interface cards to be
installed.
To install the network interface cards:
1 Shut down your FS3400. Disconnect all cables connected to your FS3400 to prevent any possible damages.
2 Open the FS3400 by following step 2 of the To install the RAM module section.
3 Install the network interface card.
a Remove the screw that secures the expansion slot’s cover.
b Lift the expansion slot’s cover.
a
b

14 Chapter 2: Hardware Setup
c Align the card’s connector with the expansion slot, and insert the card into the slot.
c
Note: Make sure the connector is fully inserted. Otherwise, the network interface card might not be able to function
properly.
d Put back and fasten the screw that you removed in step 3-a so as to secure the newly inserted card.
d
4 Repeat step 3 to install the other network interface card for your FS3400.
5 Put back the rear top cover by following step 4 of the To install the RAM module section.

15 Chapter 2: Hardware Setup
Install and Remove Rail Kits
Here we use RKS1317 as an example to illustrate how to install or remove the rail kits. For more information
about the rail kit installation, please refer to the Quick Installation Guide that comes with the rail kit.
To install the rail kit:
1 To install the rail kit to the rack
a Attach the rear end of the rail kit assembly to the rack.
b Slide the front latch outwards and insert the brackets into the rack holes.
2 Extend and pull out the inner rail from the assembly.

16 Chapter 2: Hardware Setup
3 Align the xing holes of the inner rail to the side of the chassis and slide backward to attach the inner rail.
4 With the help of another person, carefully align the inner rail to the outer rail assembly.
5 Push the chassis towards the rack. Use the cage nuts and screws in the rail kit package to secure the chassis
to the rack if necessary.

17 Chapter 2: Hardware Setup
To remove the rail kit:
1 To remove the chassis from the rack, hold the rail kit release tabs on the ear holders and pull out the chassis
from the rack.
2 With the help of another person, carefully remove the chassis from the rack. Then, slide forwards to remove
the inner rail from the chassis.
Expansion Unit Deployment and Topology
FS3400 supports up to two expansion units connection with RX2417sas (24-bay) and RX1217sas (12-bay),
providing seamless storage expansion whenever needed. This section will guide you through how to connect the
expansion units to your Synology NAS.
To connect RX1217sas/RX2417sas with FS3400:
1 Connect one end of the expansion cable to the SAS OUT port of your FS3400 and the other to the SAS IN port
of RX1217sas/RX2417sas. Make sure the release band (in blue) of the cable faces rightward when plugging
into the FS3400, and that of the cable faces upward when plugging into RX1217sas/RX2417sas; otherwise,
the FS3400 and expansion unit will not be correctly connected.

18 Chapter 2: Hardware Setup
2 Connect one end of the power cord(s) to the power port of RX1217sas/RX2417sas, and the other to the power
outlet(s). RX1217sas/RX2417sas will automatically power on once the power cords are correctly connected.
Note: Your RX1217sas/RX2417sas comes equipped with a redundant power supply system, allowing two power
cords to be connected. The system may be powered on with only one power cord, but we recommend using two
power cords to avoid unexpected power failures.
Important: Do not remove the expansion cable while the host device is still powered on. Doing so may result in data
loss.
3 Press the power button on the front panel to power on your FS3400. The expansion unit ID of RX1217sas/
RX2417sas connected to FS3400 will be displayed in sequence on the back panel.
Note: Even with the Synology NAS and expansion unit(s) powered on, you can still expand with one or more
expansion unit if needed. To do so, repeat above steps to connect the expansion cables and power cords of the other
expansion units. Your expansion units will automatically power on if they are correctly connected, and the expansion
unit ID will be displayed accordingly after a few seconds (if DSM is correctly installed in the Synology NAS server).

19 Chapter 2: Hardware Setup
Start up Your Synology NAS
To start up your FS3400:
1 Connect one end of each power cord to the power ports located on the back of the FS3400 and the other end
to a power outlet.
2 Connect at least one LAN cable to one of the LAN ports and the other end to your switch, router, or hub.
3 Press the power button to turn on the FS3400.
Congratulations! Your Synology NAS is now online and detectable from a network computer.

20 Chapter 2: Hardware Setup
LED Indicator Table
LED Indicator Color Status Description
Power
Blue
Static Powered on
Blinking Booting up / Shutting down
O󰀨 Powered o󰀨
STATUS
Green Static Volume normal
Orange Blinking
Volume degraded / Volume crashed
Volume not created
DSM not installed
O󰀨 HDD hibernation
ALERT
Orange Blinking Fan failure / Over temperature
O󰀨 System normal
Drive Status Indicator
(on tray)
Green
Static Drive ready and idle
Blinking Accessing drive
Red Static Drive error / Port disabled1
O󰀨 No internal drive
PSU Indicator
Green Static Power supply unit normal
O󰀨 Power supply unit o󰀨
Rear 1GbE LAN
(on left side of jack)
Green
Static Network connected
Blinking Network active
O󰀨 No network
Rear 1GbE LAN
(on right side of jack)
Green Static 1 Gbps connected
Orange Static 100 Mbps connected
O󰀨 10 Mbps connected / No network
Rear 10GbE LAN
(on left side of jack)
Green
Static Network connected
Blinking Network active
O󰀨 No network
Rear 10GbE LAN
(on right side of jack)
Green
Static
10 Gbps connected
Orange 1 Gbps connected
O󰀨 No network
Note: This table is applicable to Synology NAS running DSM 6.2.3 and earlier. For DSM 6.2.4 and above, please refer to this article for the latest
information.
1Please try to restart your Synology NAS or re-insert the drive(s), and then run the HDD/SSD manufacturer's diagnostic tool to check the health status of
the drive(s). If you can log into DSM, please run the built-in S.M.A.R.T. test to scan the drive(s). If the problem remains unresolved, please contact Synology
Technical Support for help.