Synology DS1621+ Manual

Synology NAS DS1621+

Hardware Installation Guide

Table of Contents

Chapter 1: Before You Start

Package Contents 3

Synology DS1621+ at a Glance 4

LED Indicator Table 5

Hardware Specication 6

Optional Accessories 7

Spare Parts 8

Safety Instructions 9

Chapter 2: Hardware Setup

Tools and Parts for Component Installation 10

Install Drives 10

Start Up Your Synology NAS 12

Add a Memory Module to Synology NAS 13

Add an M.2 NVMe SSD to Synology NAS 15

Add a Network Interface Card 16

Chapter 3: System Maintenance

Replace System Fan 17

Initial Troubleshooting Guide 20

Chapter 4: Install DSM on Synology NAS

Install DSM with Web Assistant 21

Learn More 21

Synology_HIG_DS1621+_20200622

Thank you for purchasing this Synology product! Before setting up your new Synology NAS, 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 Synology NAS.

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 1

RJ-45 LAN cable x 2

Hard drive tray key x 2

Screws for 2.5" drives x 28

Before You Start 1

Chapter

4Chapter 1: Before You Start

Synology DS1621+ at a Glance

No. Article Name Location Description

1 Status Indicator

Front

Displays the status of the system. For more information, see

"LED Indicator Table".

2 Alert Indicator Displays warnings regarding fan or temperature. For more

information, see "LED Indicator Table".

3 Power Button

1. Press to power on your Synology NAS.

2. To power o󰀨 your Synology NAS, press and hold until you

hear a beep sound and the Power LED starts blinking.

4 LAN Indicator Displays the status of the network connection. For more

information, see "LED Indicator Table".

5 Drive Status Indicator Displays the status of each drive. For more information, see

"LED Indicator Table".

6 Drive Tray Install drives (hard disk drives or solid state drives) here.

7 USB 3.0 Port Connect external drives or other USB devices to the Synology

NAS here.

8 Drive Tray Lock Lock or unlock drive trays.

9 Power Port

Rear

Connect power cord here.

10 Fan Disposes of excess heat and cools the system. If the fan

malfunctions, the Synology NAS will emit a beeping sound.

11 PCI Express

Expansion Slot Supports one PCIe x8 slots (x4 link) add-on card.

12 Kensington Security Slot Attach a Kensington security lock here.

13 USB 3.0 Port Connect external drives or other USB devices to the Synology

NAS here.

14 LAN Port Connect RJ-45 network cable here.

15 RESET Button

1. Press and hold until you hear a beep sound to restore

the IP address, DNS server, and password for the admin

account to default.

2. Press and hold until you hear a beep, then press and hold

again until you hear three beeps to return the Synology

NAS to "Not Installed" status so that DiskStation Manager

(DSM) can be reinstalled.

16 eSATA Port Connect Synology Expansion Unit1to the Synology NAS here.

11910

713 14 15 16

1For more information about Synology Expansion Unit supported by your Synology NAS, please visit www.synology.com.

5Chapter 1: Before You Start

LED Indicator Table

LED Indicator Color Status Description

STATUS

Green Static Volume normal

Orange Blinking

Volume degraded/Volume crashed

Volume not created

DSM not installed

O󰀨 HDD hibernation

Disk Status Indicator

(on tray)

Green

Static Drive ready and idle

Blinking Accessing drive

Orange Static Drive error/Port disabled1

O󰀨 No internal drive

Power

Blue

Static Powered on

Blinking Booting up/Shutting down

O󰀨 Powered o󰀨

ALERT

Orange Blinking Fan failure/Over temperature

O󰀨 System normal

Front LAN

Green

Static Network connected

Blinking Network active

O󰀨 No network

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 connection

Orange 100 Mbps connection

O󰀨 10 Mbps connection/No network

Note: Model specications are subject to change without notice. Please refer to www.synology.com for the latest information.

1Please try to restart your Synology NAS or re-insert the drives, then run the HDD/SSD manufacturer's diagnostic tool to check the health status

of the drives. If you can sign in to DSM, please run the built-in S.M.A.R.T. test to scan the drives. If the problem remains unresolved, please

contact Synology Technical Support for help.

6Chapter 1: Before You Start

Item DS1621+

Compatible Drive Type • 3.5"/2.5" SATA x 6

• M.2 2280 NVMe SSD x 2

Maximum Internal Raw Capacity • 96 TB (6 x 16 TB HDD)

• 256 TB with 2 x DX517 (expansion unit)

External Port • USB 3.0 x 3

• eSATA x 2

LAN Port 1GbE (RJ-45) x 4

PCIe Slot Gen3 x8 slot (x4 link) x 1

Size (H x W x D) (mm) 166 x 282 x 243

Weight (kg) 5.1

Supported Client • Windows 7 onwards

• macOS 10.12 onwards

File System • Internal: Btrfs, ext4

• External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT1

Supported RAID Type • Basic • JBOD • RAID 0 • RAID 1

• RAID 5 • RAID 6 • RAID 10

Agency Certication • FCC Class B • CE Class B • BSMI Class B

• EAC • VCCI • CCC • RCM • RoHS Compliant

HDD Hibernation Yes

Scheduled Power On/O󰀨 Yes

Wake on LAN Yes

Language Localization

Environment Requirement

• Line voltage: 100 V to 240 V AC

• Frequency: 50/60 Hz

• Operating Temperature: 32 to 104˚F (0 to 40˚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.

Hardware Specication

7Chapter 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

D4ES01-4G 4GB DDR4 ECC Unbu󰀨ered

SODIMM

D4ES01-8G 8GB DDR4 ECC Unbu󰀨ered

SODIMM

D4ECSO-2666-16G 16GB DDR4 ECC Unbu󰀨ered

SODIMM

• PCIe Add-in Card

Model Name Picture Description

E10G17-F2 Dual-port, 10GbE SFP+

network interface card

E10G18-T1 Single-port, 10GbE RJ-45

network interface card

E10G18-T2 Dual-port, 10GbE RJ-45

network interface card

• Expansion Unit

Model Name Picture Description

DX517 5-bay

2.5"/3.5" SATA expansion

Note: Your Synology NAS supports up to two expansion units.

8Chapter 1: Before You Start

Spare Parts

Visit www.synology.com/products/spare_parts if you need to replace system fans, disk trays, or power supply

units.

Model Name Picture Description

Disk Tray (Type D6) 3.5"/2.5" Drive Tray With Lock

Fan 92*25_3 System Fan 92*92*25 mm

PSU 250W_5 PSU 250W 24p+12p+8p

9Chapter 1: Before You Start

Safety Instructions

Keep away from direct sunlight and 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 electric 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 following tools and parts before setting up your Synology NAS:

• A screwdriver (only for 2.5" drives)

• At least one 3.5" or 2.5" SATA drive (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.

Install Drives

1 Press the lower part of the hard drive tray to unlock the handle.

2 Pull out the hard drive tray handle as shown below to remove the hard drive tray.

3 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 2

Chapter

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