Synology RS1221RP+ Installation Manual
Synology NAS RS1221RP+
Hardware Installation Guide
Table of Contents
Chapter 1: Before You Start
Package Contents 3
Synology RS1221RP+ at a Glance 4
System Modes and LED Indicators 6
Other LED Indicators 8
Hardware Specication 9
Spare Parts 10
Optional Accessories 10
Safety Instructions 11
Chapter 2: Hardware Setup
Tools and Parts for Component Installation 12
Install Drives 12
Install Memory Modules 14
Install a PCle Add-in Card 17
Mount the Synology NAS to a 4-Post Rack 18
Start up Your Synology NAS 20
Chapter 3: System Maintenance
Replace System Fan 21
Replace Power Supply Unit (PSU) 23
Chapter 4: Install DSM on Synology NAS
Install DSM with Web Assistant 24
Learn More 24
Synology_HIG_RS1221RP+_20200928
2
Chapter
Before You Start
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 dier from the actual product.
Package Contents
Main unit x 1 AC power cord x 2
Screws for 3.5" drives x 36 Screws for 2.5" drives x 36 Drive tray key x 2
1
3
Synology RS1221RP+ at a Glance
1 52 3 4 6
12
10
11
8
7
9
8
13
1514
7
No. Article Name Location Description
1 POWER Indicator
2 Power Button
3 Beep O Button
Front
4 STATUS Indicator
5 ALERT Indicator
6
7 Drive Tray Install drives (hard disk drives or solid state drives) here.
DRIVE Status
Indicator
Displays the power status of your Synology NAS. For more
information, see "System Modes and LED Indicators".
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.
Press to deactivate the beep that sounds when a malfunction
occurs.
Displays the status of the system. For more information, see
"System Modes and LED Indicators".
Displays warnings regarding fan or temperature. For more
information, see "Other LED Indicators".
Displays the status of drive. For more information, see "Other
LED Indicators".
1
For more information about the rail kit installation, please refer to the Quick Installation Guide that comes with the rail kit.
4 Chapter 1: Before You Start
No. Article Name Location Description
8
9
10
11
12
13
14
15
Fan
PCI Express
Expansion Slot
Disposes of excess heat and cools the system. If the fan
malfunctions, the Synology NAS will emit a beeping sound.
Supports the addition of PCIe network interface cards.
1. Press and hold until you hear a beep sound to restore the IP
address, DNS server, and password for the
admin
default.
RESET Button
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
Back
USB 3.2 Gen 1 Port
be reinstalled.
Connect external drives or other USB devices to the Synology
NAS here.
1GbE RJ-45 Port Connect RJ-45 network cable here.
eSATA Port Connect Synology Expansion Unit1 to the Synology NAS here.
Console Port This port is used for manufacturing only.
1. Displays the status of the power supply unit (PSU). For more
PSU Indicator and
Beep O Button
information, see "Other LED Indicators."
2. Press to deactivate the beeping sound that is emitted when a
malfunction occurs.
account to
2
For more information about Synology Expansion Unit supported by your Synology NAS, please visit
5 Chapter 1: Before You Start
www.synology.com
.
System Modes and LED Indicators
System Modes and Denitions
There are 7 system modes in Synology NAS. The System modes and their denitions are as below:
System mode Denition
Powering on
Shutting down
DSM not ready
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
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.
Synology NAS is powering on and performing hardware initialization, such as
hardware reset or BIOS initialization.
Synology NAS is shutting down as a result of pressing the power button or operation
in DSM.
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 insucient power; DSM stops all services to
prevent data loss (enters safe mode).
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.
LED Indicator
System mode
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
POWER STATUS
Green Green Orange
6 Chapter 1: Before You Start
6
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
7 Chapter 1: Before You Start
Other LED Indicators
LED Indicator Color Status Description
Green
DRIVE status Indicator
(on tray)
ALERT
Rear PSU status
Rear 1GbE LAN
(on left side of jack)
Orange Static Drive error/Port disabled
Orange Blinking System error
Green Static Power supply unit normal
Green
Static Drive ready and idle
Blinking Accessing drive
1
O No internal Drive
2
O System normal
O Power supply unit o
Static Network connected
Blinking Network active
O No network
Green
Rear 1GbE LAN
(on right side of jack)
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
ALERT LED
If the
system overheating, or volume degrade. Please sign in to DSM for detailed information.
continuously blinks orange, this indicates there are system errors such as fan failure,
Orange 100 Mbps connected
O 10 Mbps connected/No network
Static
1 Gbps connected
8 Chapter 1: Before You Start
Hardware Specication
Item RS1221RP+
Compatible Drive Type 3.5"/2.5" SATA x 8
External Port
• USB 3.2 Gen 1 x 2
• eSATA x 1
LAN Port 1GbE RJ-45 x 4
PCIe Slot Gen3 x8 slot (x4 link) x 1
• 88 x 430.5 x 398.5
Size (H x W x D) (mm)
• 88 x 482 x 407.5 (with server ears)
Weight (kg) 8.4
• Windows 7 onwards
Supported Client
• macOS 10.12 onwards
• Internal: Btrfs, ext4
File System
• External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT
• Basic • JBOD • RAID 0 • RAID 1
Supported RAID Type
• RAID 5 • RAID 6 • RAID 10
• Synology Hybrid RAID (2-Disk Fault Tolerance)
• FCC Class A • CE Class A • BSMI Class A
Agency Certication
• EAC • VCCI • CCC • RCM • KC • RoHS Compliant
1
HDD Hibernation Yes
Scheduled Power On/O Yes
Wake on LAN Yes
Language Localization
• Line voltage: 100 V to 240 V AC
• Frequency: 50/60 Hz
Environment Requirement
• 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 specications are subject to change without notice. Please refer to
www.synology.com
for the latest information.
1
Support for exFAT can be enabled by purchasing and downloading exFAT Access in Package Center.
9 Chapter 1: Before You Start
9
Spare Parts
www.synology.com/products/spare_parts
Visit
units
Model Name Picture Description
Disk Tray (Type R8) 3.5"/2.5" Drive Tray With Lock
FAN 80*80*25_3 System Fan 80*80*25 mm
PSU 350W-RP Module_1 Redundant PSU Module 350W
if you need to replace system fans, disk trays, or power supply
Optional Accessories
With Synology accessories, you can customize your Synology NAS to t dierent business environments without
worrying about compatibility and stability. Visit
www.synology.com/compatibility
for more information.
10 Chapter 1: Before You Start
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