Synology RS2821RP+ Manual

Synology NAS RS2821RP+

Hardware Installation Guide

Table of Contents

Chapter 1: Before You Start

Package Contents 3

Synology RS2821RP+ at a Glance 4

System Modes and LED Indicators 6

Other LED Indicators 8

Hardware Specication 9

Spare Parts 10

Optional Accessories 10

Safety Instructions 11

Chapter 2: Hardware Setup

Tools and Parts for Drive Installation 12

Install Drives 12

Install Memory Modules 14

Install PCle Add-in Cards 17

Install and Remove Rail Kits 18

Expansion Unit Deployment and Topology 20

Start up Your Synology NAS 21

Chapter 3: System Maintenance

Replace System Fan 22

Replace Power Supply Unit (PSU) 23

Chapter 4: Install DSM on Synology NAS

Install DSM with Web Assistant 24

Learn More 24

Synology_HIG_RS2821RP+_20201208

Synology NAS RS2821RP+ 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 RS2821RP+, including the hardware components, setup procedures, and system maintenance.

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 68

Screws for 3.5" drives x 68

Before You Start 1

Chapter

4Chapter 1: Before You Start

Synology RS2821RP+ at a Glance

152 3 4

810

15 1614

911

No. Article Name Location Description

1 POWER Button and

Indicator

Front

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.

2 STATUS Indicator Displays the status of the system. For more information, see

"System Modes and LED Indicators".

3 ALERT Indicator Displays warnings regarding fan or temperature. For more

information, see "Other LED Indicators".

4 Beep O󰀨 Button Press to deactivate the beep that sounds when a malfunction

occurs.

5 DRIVE Status

Indicator

Displays the status of drives. For more information, see "Other

LED Indicators".

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 Synology NAS from the rail kit

lock.1

1For more information about the rail kit installation, please refer to the Quick Installation Guide that comes with the rail kit.

5Chapter 1: Before You Start

No. Article Name Location Description

8 PSU Fan

Back

Disposes of excess heat and cools the PSU.

9 Power Port Connect power cord here.

10 PSU Indicator Displays the status of the power supply unit (PSU). For more

information, see "Other LED Indicators".

11 Console Port This port is used for manufacturing only.

12 PCI Express

Expansion Slot Supports the addition of PCIe network interface cards.

13 1GbE RJ-45 Port Connect RJ-45 network cable here.

14 USB 3.2 Gen 1 Port Connect external drives or other USB devices to the Synology

NAS here.

15 Expansion Port Connect to Synology Expansion Unit2here.

16 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.

2For more information about Synology Expansion Unit supported by your Synology NAS, please visit Synology's o󰀩cial website.

6Chapter 1: Before You Start

System Modes and LED Indicators

System Modes and Denitions

There are 7 system modes in Synology NAS. The System modes and their denitions are as below:

System mode Denition

Powering on Synology NAS is powering on and performing hardware initialization, such as

hardware reset or BIOS initialization.

Shutting down Synology NAS is shutting down as a result of pressing the power button or operation

in DSM.

DSM not ready

DSM is not ready for use. This could either be:

• Synology NAS is powered on, but DSM is not properly installed.

• Synology NAS is currently powering on and initializing services necessary for

DSM to fully function.

• The attached UPS device has insu󰀩cient power; DSM stops all services to

prevent data loss (enters safe mode).

DSM is ready for use DSM is fully functioning and users can sign in.

Hibernation Synology NAS has been idle for a while and is now in Hibernation mode.

Application

Certain packages/services (e.g., USB Copy and Find me service) while in operation

will control the actions of the LED. After the operation is complete, the LED indicator

will return to its normal state.

Powered o󰀨 Synology NAS is powered o󰀨.

Identify System Modes

You can identify the system mode through the POWER and STATUS LED indicators. Please refer to below table

for more details.

System mode

LED Indicator

POWER STATUS

Blue Green Orange

Powering on Blinking O󰀨 O󰀨

Shutting down Blinking Static O󰀨

DSM not ready Static Blinking O󰀨

DSM is ready for use Static Static O󰀨

Hibernation Static O󰀨 O󰀨

Application Static Switching

Powered o󰀨 O󰀨 O󰀨 O󰀨

7Chapter 1: Before You Start

Transitions between System Modes

To better understand the transition between system modes, please refer to below examples:

• Powered on with no DSM installed:

Powered o󰀨 > Powering on > DSM not ready

• Powered on with DSM installed:

Powered o󰀨 > Powering on > DSM not ready > DSM is ready for use

• Enter hibernation then wake up from hibernation:

DSM is ready for use > Hibernation > DSM is ready for use

• Shutdown Synology NAS:

DSM is ready for use > Shutting down > Powered o󰀨

• Power failure with UPS attached:

DSM is ready for use > DSM not ready (due to power failure, DSM enters safe mode) > Shutting down >

Powered o󰀨 > Powering on (power has recovered, DSM will reboot)> DSM not ready > DSM is ready for use

8Chapter 1: Before You Start

Other LED Indicators

LED Indicator Color Status Description

DRIVE status

Green

Static Drive ready and idle

Blinking Accessing drive

Red Static Drive error/Port disabled1

O󰀨 No internal Drive

ALERT

Orange Blinking System error2

O󰀨 System normal

PSU Indicator

Green Static Power supply unit normal

Orange Static Power supply unit fail/No power supply

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 100 Mbps connected

O󰀨 10 Mbps connected/No network

Note:

1 Please 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.

2 If the ALERT LED continuously blinks orange, this indicates there are system errors such as fan failure,

system overheating, or volume degrade. Please sign in to DSM for detailed information.

9Chapter 1: Before You Start

Hardware Specication

Item RS2821RP+

Compatible Drive Type 3.5"/2.5" SATA x 16

Maximum Drive Bays with

Expansion Unit 28 (RX1217/RX1217RP x 1)

External Port

• USB 3.2 Gen 1 x 2

• Inniband x 1

LAN Port • 1GbE RJ-45 x 4

PCIe Slot Gen3 x8 slot (x4 link) x 1

Size (H x W x D) (mm)

• 132.3 x 430.5 x 624.5

• 132.3 x 482 x 656.5 (with server ears)

Weight (kg) 17.1

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 • Synology Hybrid RAID (2-Disk Fault Tolerance)

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

• EAC • VCCI • CCC • RCM • KC • UL • 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 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 Synology's o󰀩cial website for the latest information.

1Support for exFAT can be enabled by purchasing and downloading exFAT Access in Package Center.

10 Chapter 1: Before You Start

Spare Parts

Visit Spare Parts if you need to replace system fans, disk trays, or power supply units.

Model Name Picture Description

Cable MiniSAS_INT_3 Internal MiniSAS Cable

Disk Tray (Type R7) 3.5"/2.5" Drive Tray

FAN 80*80*32_7 System Fan 80*80*32 mm

PSU 550W-RP Module_1 Redundant PSU Module 550W

PSU 550W-RP SET_1 Redundant PSU Set 550W

Optional Accessories

With Synology accessories, you can customize your expansion unit to t di󰀨erent business environments without

worrying about compatibility and stability. Visit Synology Products Compatibility List for more information.

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