Synology Knowledge Center

28 results

1 Jul 2024 - Get to know each Synology's product introduction, highlighted features, and specifications.

Tutorial & FAQ > DiskStation Manager

Why does my Synology device sign me out when I sign in to another Synology device?

9 Feb 2021 - Rule 1: Redirect the external port 5000 (or 5001) to port 5000 (or 5001) of DS1819+. Refer to the examples below: DS1819+: andrew1819.synology.me DS918+: andrew918.synology.me You can now connect to DS1819+ and DS918+ using different URLs...

DS1819+ | Product Manual

1 Sep 2021 - This guide will walk you through the process of how to set up a Synology product from scratch.

Download

Tutorial & FAQ > DiskStation Manager

Which Synology NAS models support SSD cache?

7 May 2025 - DS1621xs+, DS1621+, DVA3221 20-series RS820RP+, RS820+, DS1520+, DS920+, DS720+, DS420+, DS620slim 19-series RS1619xs+, RS1219+, DS2419+II, DS2419+, DS1819 RS2423+ 22-series RS822RP+, RS822+, DS2422+ 21-series RS2821RP+, RS2421RP+, RS2421+, RS1221(RP)+ 20-series RS820(RP)+ 19-series DS2419+II, DS2419+, DS1819...

SSD Cache

Tutorial & FAQ > DiskStation Manager

Why is there a startup delay after a memory upgrade?

17 May 2023 - Below are the models that may encounter startup delays: Series Models 21-series DVA3221 20-series RS820(RP)+ 19-series DS2419+, DS1819+, DVA3219 18-series...

DSM Startup Issue

Tutorial & FAQ > DiskStation Manager

Which Synology NAS supports LED brightness adjustment?

25 May 2023 - DS1522+, DVA1622 21-series DS1821+, DS1621xs+, DS1621+, DVA3221 20-series DS1520+, DS920+, DS720+, DS620slim, DS420+, DS420j, DS220+, DS220j 19-series DS1819...

LED

Tutorial & FAQ > DiskStation Manager

Are there any requirements for installing or expanding system memory capacity?

25 Oct 2022 - CPU platform: Denverton Applied models RS2818RP+, RS2418+, RS2418RP+, DS2419+II, DS2419+, DS1819+, DS1618+, DVA3221, DVA3219 Requirements These models...

Compatibility

Tutorial & FAQ > DiskStation Manager

Can I create a high-availability cluster with two different Synology NAS servers?

31 Jul 2024 - 7.0.1 DS2422+, DS2419+ DSM 7.0.1 DS2419+II, DS2419+ DSM 6.2.4 DS2419+II, DS2415+ DSM 6.2.4 DS2419+, DS2415+ DSM 6.2.2 DS2415+, DS2413+ DSM 5.2 DS1821+, DS1819 + DSM 6.2.3 DS1819+, DS1817+ DSM 6.2.2 DS1817+, DS1815+ DSM 6.1.1 DS1815+, DS1813+ DSM 5.2 DS1815+, DS1812+ DSM 5.2 DS1813+, DS1812+ DSM 5.2 DS1621+, DS1618...

Synology High Availability

Tutorial & FAQ > DiskStation Manager

How many Hybrid Share folders can I mount on my Synology NAS?

25 May 2023 - RS822RP+, RS822+, RS820RP+, RS820+, RS818RP+, RS818+, RS815RP+, RS815+, RS814RP+, RS814+, RS422+, DS2422+, DS2419+II, DS2419+, DS2415+, DS2413+, DS1821+, DS1819...

Hybrid Share

Tutorial & FAQ > DiskStation Manager

Which Synology NAS models support the Btrfs file system?

25 May 2023 - DS1621+, DVA3221 20-series RS820RP+, RS820+, DS1520+, DS920+, DS720+, DS420+, DS220+, DS620slim 19-series RS1619xs+, RS1219+, RS819, DS2419+II, DS2419+, DS1819...

Btrfs

Tutorial & FAQ > DiskStation Manager

How do I recognize a hibernating Synology NAS via the LED indicators?

1 Feb 2021 - RS815(RP)+, RS815, RS814(RP)+, RS814, RS812(RP)+, RS812, RS217, RS214, DS3617xs, DS3615xs, DS3612xs, DS3018xs, DS2419+, DS2415+, DS2413+, DS2015xs, DS1819...

Control Panel Hardware Hibernation HW Specs/Info/Compatibility LED

Tutorial & FAQ > DiskStation Manager

Which Synology NAS models support AI-calculated features on Moments?

19 Jul 2021 - , DS1621+, DVA3221 20 series RS820RP+, RS820+, DS1520+, DS920+, DS720+, DS620slim, DS420+, DS220+ 19 series RS1619xs+, RS1219+, DS2419+II, DS2419+, DS1819...

Moments Multimedia

Tutorial & FAQ > DiskStation Manager

Which Synology NAS models support the face and object recognition feature on Synology Photos?

7 May 2025 - 20 series RS820RP+ 2 , RS820+ 2 , DS1520+, DS920+, DS720+ 2 , DS620slim 2 , DS420+ 2 , DS220+ 2 19 series RS1619xs+, RS1219+ 2 , DS2419+II, DS2419+, DS1819...

Synology Photos

Tutorial & FAQ > DiskStation Manager

How many Shared Folder Sync tasks does Synology Product support?

25 May 2023 - DVA3221 16 RS3617xs, RS3614(RP)xs, RS2821RP+, RS2818RP+, RS2421(RP+), RS2418(RP)+, RS1221(RP)+, DS3615xs, DS2422+, DS2419+II, DS2419+, DS1621+, DS1821+, DS1819...

Shared Folder Sync

Tutorial & FAQ > DiskStation Manager

Does Synology's Web Station support Zend?

6 Jul 2022 - RS814(RP)+, RS812(RP)+, DS2413+, DS1813+, DS1812+, DS1513+, DS1512+, DS713+, DS412+ Denverton RS2818RP+, RS2418(RP)+, RS820(RP)+, DS2419+II, DS2419+, DS1819...

Web Station PHP

Tutorial & FAQ > DiskStation Manager

How do I expand the memory of my Synology server?

31 Mar 2023 - slots, 2-channel memory architecture Memory Channel A0 B0 Total Memory Module size 4 GB 4 GB 8 GB 16 GB 16 GB 32 GB Applied Models DS2419+II, DS2419+, DS1819...

RAM

Tutorial & FAQ > DiskStation Manager

Which Synology NAS model can I use with Synology Expansion Units?

7 May 2025 - , DS2419+, DS2415+, DS2413+, DS2411+, DS2015xs DX1211 DS3612xs, DS3611xs, DS2413+, DS2411+ DX525 DS1825+, DS1525+, DS925+ DX517 DS1823xs+, DS1821+, DS1819...

Expansion Unit

Tutorial & FAQ > DiskStation Manager

Can my Synology NAS convert videos for my device?

16 Aug 2024 - DS2415+, DS1819+, DS1817+, DS1815+, DS1618+, DS1517+, DS1515+, DS415+, DS415play, DS214play, DVA3219 Group 1 - Type 2 RS18016xs+, RS10613xs+, RC18015xs...

Video Station

Tutorial & FAQ > DiskStation Manager

What is the maximum single volume size of my Synology NAS?

7 May 2025 - series : RS820RP+, RS820+, DS1520+, DS920+, DS720+, DS620slim, DS420+, DS420j, DS220+, DS220j, DS120j 19-series : RS1219+, RS819, DS2419+II, DS2419+, DS1819...

Storage Manager

Tutorial & FAQ > DiskStation Manager

How many virtual machines can I run on my Synology NAS?

7 May 2025 - DS2419+II/DS2419+ 32 GB (16 GB x 2) 4 DS2415+ 6 GB (2 GB + 4 GB) 2 DS1825+ 32 GB (16 GB x 2) 8 DS1823xs+ 32 GB (16 GB x 2) 8 DS1821+ 32 GB (16 GB x 2) 8 DS1819...

Virtual Machine Manager

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