Synology kræver kun lidt introduktion, når det kommer til netværksprodukter, især netværkstilsluttet lagring ( NAS ) og overvågningsløsninger. I denne artikel vil vi gennemgå DiskStation DS1621+ 6-bay NAS . På papiret er den perfekt til små virksomheder og entusiaster, der har brug for en fleksibel og robust NAS- løsning. Men er DiskStation DS1621+ en mester i alle brancher og ingen mester? Læs vores anmeldelse for at finde ud af:

Synology DiskStation DS1621+ : Hvem er det godt for?

Synology DiskStation DS1621+ er et glimrende valg til:

• Små virksomheder har brug for en NAS til systemsikkerhedskopiering
• Hjemmebrugere og små virksomheder, der ønsker at bygge deres cloud-lagringstjeneste og ikke har en dedikeret it-afdeling
• Virksomheder, der arbejder sammen om medieprojekter
• Brugere, der ønsker at skabe deres hjemmebaserede multimedielagrings- og streamingplatform
• Virksomheder, der ønsker at hoste webapps, websteder eller webtjenester på deres hardware
• IT-professionelle, der arbejder med flere virtuelle maskiner

Fordele og ulemper

Vi har mange gode ting at sige om Synology DiskStation DS1621+ :

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• Enheden er enkel og robust med nem adgang til hovedkomponenterne
• Softwaremiljøet er modulopbygget, opdateres jævnligt og meget nemt at bruge
• Apps dukker konstant op og gør det muligt at bruge enheden i en lang række scenarier
• AMD-processoren er meget kraftfuld
• Der er understøttelse af SSD-cache

Der er også et par ulemper at overveje:

• Enheden har ingen støvbeskyttelse, hvilket kan være nyttigt i visse scenarier
• Ved fuld hastighed støjer blæserne meget
• Der er ingen 10Gb eller 2,5Gb Ethernet - forbindelse inkluderet

Dom

Som altid med Synology - produkter var DiskStation DS1621+ en fornøjelse at arbejde med. Det er en robust og velbygget NAS -løsning ( Network Attached Storage ), med uden tvivl den bedste tilgængelige software til sådanne løsninger og god hardware. Opsætningen er en leg, og dokumentation er let tilgængelig, hvis du har brug for avanceret konfiguration. Vi anbefaler det til hjemmebrugere, it-professionelle og små virksomheder, der ønsker en tilgængelig og venlig netværkstilsluttet lagringsløsning. Det er et rigtigt mesterværk.

Udpakning af Synology DiskStation DS1621+

DiskStation DS1621+ kommer i en enkel, relativt lille papkasse, men det giver mening, da selve enheden er meget kompakt.

På forsiden er der et klistermærke, der beskriver de vigtigste fordele ved DiskStation DS1621+ og et billede af enheden, mens du på bagsiden har flere tekniske detaljer printet på æsken.

Emballagen til Synology DiskStation DS1621+

Inde i pakken finder du DiskStation DS1621+ , en strømadapter, to højkvalitets LAN - kabler, to plastiknøgler til at låse drevbakkerne, en pakke skruer (til montering af 2,5-tommer lagerdrev i 3,5-tommers drevbåse) , og en hurtig installationsvejledning.

Tilbehøret, der følger med DS1621+

The traditional approach of Synology towards packaging shows that their devices are oriented towards prosumers and professionals. There are no bells and whistles, but the package includes all the accessories needed to get the DiskStation DS1621+ going.

Hardware specifikationer og design

DiskStation DS1621+ er kompakt med en højde på 6,53 tommer (166 mm), en bredde på 11,1 tommer (282 mm) og en dybde på 9,57 tommer (243 mm). Med 11,2 lbs (eller 5,1 kg) er den relativt tung selv uden drev.

Forsiden af ​​Synology DS1621+

Enheden har seks 3,5-tommer drevbåse, som individuelt kan låses med de medfølgende nøgler. Hver bugt har sit eget statuslys. De understøtter installation uden værktøj til 3,5-tommer drev, mens de medfølgende skruer også tillader installation af 2,5-tommer drev. Drevene kan konfigureres i Synology Hybrid RAID ( SHR ), Basic , JBOD , RAID 0 , RAID 1 , RAID 5 , RAID 6 , RAID 10 , afhængigt af behovene og antallet af installerede drev. Naturligvis er alle drev hot-swappable.

Drevbåsene tillader installation af harddiske uden værktøj

På forsiden af DiskStation DS1621+ er der en tænd/sluk-knap, en status- LED , en advarsels - LED , samt fire LED'er^(LEDs) , der angiver status for LAN -forbindelsen for hver port. Skjult^(Hidden) i nederste højre hjørne er der en USB 3.2 Gen 1 -port.

DS1621 DS1621+ har tre USB 3.2 Gen 1 - porte i alt, med en på forsiden

Når vi flytter til bagsiden af ​​enheden, har vi AC-strømstikket, en Kensington Security - slot, yderligere to USB 3.2 Gen 1 - porte, fire Gigabit -netværksporte (med understøttelse af linkaggregering) og to eSATA-porte. Synology DiskStation DS1621+ har også en PCIe x8 udvidelsesslot, der kan bruges til at installere for eksempel et 10GbE netværkskort.

Bagsiden af ​​Synology DS 1621+

Det interne ser godt ud: En AMD Ryzen V1500B quad-core 2,2 GHz - processor med op til 32 GB ECC DDR4 (vores kom med standard 4 GB) gør enheden velegnet til lette virtuelle maskiner og multimedieapplikationer. Fleksibiliteten af DiskStation DS1621+ er yderligere forbedret ved muligheden for at tilføje to M.2 2280 NVMe SSD'er^{(NVMe SSDs)} til skrive-caching. Dette øger læse- og skriveydelsen markant og giver adgang for et større antal brugere.

SSD'erne er bekvemt^(SSDs) placeret i kabinettet

RAM er også let tilgængelig : du behøver kun at løsne to skruer i bunden af ​​enheden, og du kan erstatte eller tilføje hukommelse. Pas^(Careful) dog på, det er ECC DDR4 , så du skal kigge efter kompatible moduler.

Fjern blot to skruer for at få adgang til DDR4 DIMM -slots

NAS'en køles^(NAS) af to 90 mm blæsere. Desværre tillader designet af kabinettet ikke at installere et luftfilter, så i støvede miljøer bør du sørge for at rengøre enheden regelmæssigt, da det vil forlænge blæsernes levetid. Når du skal udskifte blæserne, er de let tilgængelige og kan udskiftes gennem bagsiden.

Der er ingen støvfiltre på Synology DS1621+

DiskStation DS1621+ har et strømforbrug på ca. 51W ved adgang til drevene og omkring 25W, når drevene er i dvale. Støjniveauet er lavt ved normal drift, men hvis du indstiller blæserne til at køre på 100 %, må du hellere have et dedikeret serverrum med lydisolering.

Hvis du gerne vil læse de komplette specifikationer for dette produkt, kan du downloade databladet^{(Data Sheet)} fra denne side: Download Center - DS1621+ .

Overall, the design is rugged and inspires confidence in the longevity of the product. There are many connectivity options, and the drives are super easy to access and replace, thanks to the tool-less mounting design. Status LEDs ensure that you can get a good idea of the state of the DiskStation DS1621+ without accessing the interface. The focus was on efficiency when designing the device, and it shows.

Opsætning og brug af Synology DiskStation DS1621+

Vi testede DiskStation DS1621+ med fem Synology 8TB- drev, som var meget nemme at installere i båsene. Vi blev også forsynet med to 400 GB SSD - drev, som vi konfigurerede til læse/skrive-cache. Når du sætter alle drevene ind, er hardwareopsætningen ligetil: Tilslut AC-kablet, tilslut NAS'en^(NAS) til routeren ved hjælp af LAN -kablerne, og tænd for enheden.

DS1621 DS1621+ -grænsefladen kan tilgås fra enhver browser

Vi valgte så at bruge det nyeste DiskStation Manager- operativsystem ( DSM 7.0.1 ). Efter installation af DSM og genstart kan du konfigurere loginoplysningerne. Opsætningsguiden spørger derefter, om du vil installere de anbefalede standardpakker til din NAS , eller om du vil installere dem alle. Du kan også springe dette trin over og installere dem manuelt senere. Du bliver derefter spurgt, om du vil oprette et QuickConnect ID , som du kan bruge til at fjernforbindelse til din NAS via internettet.

Opsætning af QuickConnect ID på DS1621+

Som beskrevet før kan dine lagerdrev konfigureres til at fungere i enhver af Synology Hybrid RAID ( SHR ), Basic , JBOD , RAID 0 , RAID 1 , RAID 5 , RAID 6 , RAID 10 -tilstande. Med hensyn til understøttede filsystemer kan du vælge mellem Brtfs og ext4, selvom du kan vælge mellem flere typer filsystemer til eksterne drev. Konfiguration af filsystemet og RAID var lige så let som at vælge mellem flere menupunkter. Vi gik med en RAID 10 -konfiguration (fire af drevene, i alt en brugbar plads på ca. 14 TB og drevredundans),SSD -cache og en hot spare (det femte drev). Hot spare aktiveres, når et af RAID- drevene svigter, og migreringen og udskiftningen sker automatisk uden behov for menneskelig indgriben.

Den endelige RAID - konfiguration med en hot spare og SSD -cache

Den seneste version af DSM -operativsystemet ser godt ud og er godt organiseret. Den grafiske brugergrænseflade er brugervenlig og giver alle de nødvendige visuelle signaler til selv begyndere for at begynde at arbejde med Synology DiskStation DS1621+ .

DSM 's grafiske interface er praktisk og ser godt ud

Synology tilbyder en modulær tilgang til værktøjerne og apps. Når du har gennemgået guiden til hurtig opsætning, kan du bruge Pakkecenteret^{(Package Center)} til at downloade og installere alle de værktøjer, der er nødvendige for at tilpasse og bruge DiskStation DS1621+ i dit særlige scenarie. Pakkecentret er grundlæggende en app-butik med både løsninger udviklet af Synology og^{(Package Center)} apps fra verificerede tredjeparter.

App butik? Nej, Pakkecenter

Her er nogle af de ting, du kan gøre med din DiskStation DS1621+:

• Privat cloud-lagringstjeneste - du kan oprette din version af Dropbox eller OneDrive .
• Cloud backup - du kan sikkert sikkerhedskopiere data lokalt fra en offentlig cloud-tjeneste (som Google Drev^{(Google Drive)} ) ved hjælp af Cloud Sync .
• Multimedieserver^(Multimedia) - du kan indstille DS1621+ til at gemme og downloade billeder, musik og videoer og derefter bruge den til at streame dit indhold til de enheder, der er en del af dit netværk.
• Videoovervågning^(Video) - du kan bruge DS1621+ til at gemme videooptagelser fra op til 40 IP-kameraer og få adgang til det, når det er nødvendigt. Der er to gratis IP-kameralicenser inkluderet.
• Sikkerhedskopieringsserver^(Backup) - du kan indstille DS1621+ til at lave backup af de pc'er, der er tilsluttet netværket.
• Webserver^(Web) - du kan installere Apache , PHP og Content Management Systems som WordPress eller Joomla og hoste dine egne websteder.
• Web-baseret samarbejdsplatform - du kan installere flere værktøjer til at bygge en webbaseret samarbejdsplatform: en chattjeneste, en teamkalender, kontorproduktivitetsapps, op til 5 gratis mailkonti på Synology MailPlus .
• Virtual Machine Manager - du kan køre flere Windows , Linux eller endda DSM virtuelle maskiner på DS1621+ .

Andre pakker kan hjælpe med at gøre din NAS til en VPN -server, e-mail-server og endda en LDAP -server.

Synology DS1621+ har et Virtual Machine Manager- modul

Link aggregering er en nyttig funktion, men gør ikke meget for at afbøde begrænsningen på 1 Gbps for netværksadaptere. Især da CPU'en^(CPU) og filsystemet kan håndtere et stort antal samtidige brugere, kan du købe et PCIe -udvidelseskort , hvis du har brug for en NAS til flere filoverførsler, og du tror, ​​du vil være begrænset af netværksadapterens båndbredde .

Supportdokumentationen er let tilgængelig og detaljeret. I DSM Hjælp-^{(DSM Help)} modulet får du information om dets funktioner, links til tutorials samt links til videoer, der viser potentialet i din NAS , og hvordan du konfigurerer den.

DSM Hjælp-dokumentation

Hvis du skal bruge DiskStation DS1621+ i hjemmet, skal du sørge for at planlægge regelmæssig vedligeholdelse, der inkluderer afstøvning og rengøring af enheden, da den ikke har noget støvfilter. Afhængigt af arbejdsbelastningen kan blæserne også blive meget høje. Under vores test lykkedes det ikke at indlæse den kraftige processor med mere end 60 % af dens kapacitet, men at have seks drev og to SSD'er^(SSDs) i så lille et kabinet kan alligevel føre til høje temperaturer. Når vi taler om temperaturer, gik drevene aldrig over 98,5 grader Fahrenheit (37 grader Celsius ) under vores test. SSD'erne var^(SSDs) bare en smule varmere, ved 104 grader Fahrenheit (40 grader Celsius ).

The Synology operating system is, we believe, the most advanced and user-friendly management system for network-attached storage solutions. We had no trouble setting up the Synology DiskStation DS1621+ and, while we didn’t have enough time to test out each individual scenario, we can safely say that this NAS is a very powerful tool for small businesses and enthusiasts .

Hvor hurtig er Synology DiskStation DS1621+ til at overføre data?

Da det trods alt er en NAS -løsning, testede vi overførselshastighederne til og fra andre enheder på samme netværk. Resultaterne var forudsigelige i betragtning af enhedens specifikationer: ved brug af linkaggregering nåede overførselshastigheden op på 1032 Mbps for at skrive data til DiskStation DS1621+ og 1792 Mbps til at læse data. Dette er det bedste scenario med SSD - cache og link-aggregering slået til. Uden linkaggregering var værdierne naturligvis lavere, da båndbredden var begrænset til 1 Gbps : 916 MBps for skrivning, 906 Mbps for læsninger.

Læsehastighederne med linkaggregering er meget gode

Da vi deaktiverede læse/skrive-cachen fra SSD'erne^(SSDs) , var der meget lille forskel med hensyn til læsehastighed fra enheden.

Deaktivering af SSD -cache har ringe effekt på sekventielle overførsler

Dette resultat kan forventes, da RAID 10 allerede har nok læse-/skrivebåndbredde til at behandle netværkstrafikken, selv med to aggregerede 1Gbps-links. SSD -cache har ingen reel fordel i dette scenarie (sekventielle overførsler med store sammenhængende filer). Kun når arbejdsbyrden omfatter små filer, gør SSD -cachen en forskel.

The specs of the hard disks or/and SSDs that you install inside the NAS will have the most impact on performance, but if you go with high-speed drives and configurations, you might hit the limitation of the network infrastructure. It all comes down to the predicted workload: make sure you design your solution based on your needs.

Hvad er din mening om Synology DiskStation DS1621+ ?

Nu ved du mere om Synology DiskStation DS1621+ Network Attached Storage løsningen, dens funktioner og begrænsninger. Hvad er din mening om DS1621+ ? Har du planer om at købe en? Overvejer du også andre modeller eller mærker? Hvis du allerede ejer en DiskStation DS1621+ , så tøv ikke med at dele din oplevelse med andre læsere, der kunne være interesserede i denne model.

Reviewing the Synology DiskStation DS1621+ NAS: jack of all trades

Synology requirеs little introduction when it comes to networking prodυcts, especially network-attached storage (NAS) and surveillance solutions. In this article, we will review the DiskStation DS1621+ 6-bay NAS. On paper, it is рerfect for small businesses and enthusiasts who need a flexible аnd robust NAS solution. But is the DiskЅtation DS1621+ a jaсk of all trades and a master of none? Read our review to find out:

Synology DiskStation DS1621+: Who is it good for?

Synology DiskStation DS1621+ is an excellent choice for:

• Small businesses in need of a NAS for system backups
• Home users and small businesses who want to build their cloud storage service and don’t have a dedicated IT department
• Businesses who work collaboratively on media projects
• Users who want to create their home-based multimedia storage and streaming platform
• Businesses who want to host web apps, websites, or web services on their hardware
• IT professionals who work with multiple virtual machines

Pros and cons

We have many good things to say about the Synology DiskStation DS1621+:

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• The device is simple and robust, with easy access to the main components
• The software environment is modular, regularly updated, and very easy to use
• Apps are constantly appearing and allow the device to be used in a wide range of scenarios
• The AMD processor is very powerful
• There is support for SSD caching

There are a few downsides to consider as well:

• The device has no dust protection, which might be useful in certain scenarios
• At full speed, the fans are very noisy
• There is no 10Gb or 2.5Gb Ethernet connection included

Verdict

As always with Synology products, the DiskStation DS1621+ was a pleasure to work with. It is a rugged and well-built NAS (Network Attached Storage) solution, with arguably the best software available for such solutions and good hardware. Setting it up is a breeze, and documentation is readily available if you need advanced configuration. We recommend it to home users, IT professionals, and small businesses that want an accessible and friendly network attached storage solution. It’s a real jack of all trades.

Unboxing the Synology DiskStation DS1621+

The DiskStation DS1621+ comes in a simple, relatively small cardboard box, but that makes sense since the device itself is very compact.

On the front, there is a sticker outlining the main advantages of the DiskStation DS1621+ and a picture of the device, while on the back you have more technical details printed on the box.

The packaging for Synology DiskStation DS1621+

Inside the package, you find the DiskStation DS1621+, a power adapter, two high-quality LAN cables, two plastic keys to lock the drive trays, a pack of screws (for mounting 2.5-inch storage drives in the 3.5-inch drive bays), and a quick installation guide.

The accessories that come with the DS1621+

The traditional approach of Synology towards packaging shows that their devices are oriented towards prosumers and professionals. There are no bells and whistles, but the package includes all the accessories needed to get the DiskStation DS1621+ going.

Hardware specifications and design

The DiskStation DS1621+ is compact, with a height of 6.53 inches (166 mm), a width of 11.1 inches (282 mm), and a depth of 9.57 inches (243 mm). At 11.2lbs (or 5.1 kg), it’s relatively heavy even without drives.

The front of the Synology DS1621+

The device has six 3.5-inch drive bays, which can be individually locked with the included keys. Each bay has its own status light. They support tool-less installation for 3.5-inch drives, while the included screws allow the installation of 2.5-inch drives as well. The drives can be configured in Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, depending on the needs and the number of drives installed. Naturally, all drives are hot-swappable.

The drive bays allow tool-less installation of hard-drives

On the front of the DiskStation DS1621+, there’s a power button, a status LED, an alert LED, as well as four LEDs indicating the status of the LAN connection for each port. Hidden in the lower right corner, there is a USB 3.2 Gen 1 port.

The DS1621+ has three USB 3.2 Gen 1 ports in total, with one on the front

Moving to the back of the device, we have the AC power connector, a Kensington Security slot, two more USB 3.2 Gen 1 ports, four Gigabit network ports (with link aggregation support), and two eSATA ports. The Synology DiskStation DS1621+ also has a PCIe x8 expansion slot that can be used for installing, for example, a 10GbE network card.

The back of the Synology DS 1621+

The internals are looking good: an AMD Ryzen V1500B quad-core 2.2 GHz processor with up to 32 GB ECC DDR4 (ours came with the standard 4 GB) makes the device suitable for light virtual machines and multimedia applications. The flexibility of the DiskStation DS1621+ is further improved by the possibility of adding two M.2 2280 NVMe SSDs for write caching. This greatly increases reading and writing performance and allows access for a greater number of users.

The SSDs are conveniently located in the enclosure

The RAM is easily accessible as well: you only need to undo two screws on the bottom of the device and you can replace or add memory. Careful, though, it’s ECC DDR4, so you need to look for compatible modules.

Just remove two screws to gain access to the DDR4 DIMM slots

The NAS is cooled by two 90mm fans. Unfortunately, the design of the enclosure doesn’t allow an air filter to be installed, so in dusty environments, you should make sure you clean the device regularly, as it will prolong the life of the fans. When you do need to replace the fans, they are easily accessible and can be replaced through the back.

There are no dust filters on the Synology DS1621+

The DiskStation DS1621+ has a power consumption of roughly 51W when accessing the drives and about 25W when the drives are hibernating. The noise level is low in normal operation, but if you set the fans to run at 100%, you’d better have a dedicated server room with soundproofing.

If you would like to read the complete specifications of this product, you can download the Data Sheet from this page: Download Center - DS1621+.

Overall, the design is rugged and inspires confidence in the longevity of the product. There are many connectivity options, and the drives are super easy to access and replace, thanks to the tool-less mounting design. Status LEDs ensure that you can get a good idea of the state of the DiskStation DS1621+ without accessing the interface. The focus was on efficiency when designing the device, and it shows.

Setting up and using the Synology DiskStation DS1621+

We tested the DiskStation DS1621+ with five Synology 8TB drives, which were very easy to install in the bays. We were also provided with two 400GB SSD drives that we configured for read/write caching. Once you pop in all the drives, the hardware setup is straightforward: plug the AC cable, connect the NAS to the router using the LAN cable(s), and power on the device.

The DS1621+ interface can be accessed from any browser

We then chose to use the latest DiskStation Manager operating system (DSM 7.0.1). After installing the DSM and rebooting, you can configure the login details. The setup wizard then asks whether you want to install the standard recommended packages for your NAS, or if you want to install them all. You can also skip this step and install them manually later. You are then asked whether you want to create a QuickConnect ID that you can use to remotely connect to your NAS via the internet.

Setting up the QuickConnect ID on the DS1621+

As described before, your storage drives can be configured to work in any of the Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 modes. In terms of supported file systems, you can choose between Brtfs and ext4, although you can choose from more types of file systems for external drives. Configuring the file system and the RAID was as easy as choosing from several menu options. We went with a RAID 10 configuration (four of the drives, totaling a usable space of roughly 14 TB and drive redundancy), SSD caching, and a hot spare (the fifth drive). The hot spare activates when one of the RAID drives fails, and the migration and replacement are done automatically, without the need for human intervention.

The final RAID configuration, with a hot spare and SSD caching

The latest version of the DSM operating system looks great and is well organized. The graphical user interface is user-friendly and provides all the necessary visual cues for even beginners to start working with the Synology DiskStation DS1621+.

The DSM graphical interface is practical and looks good

Synology offers a modular approach for the tools and apps. After you go through the quick setup wizard, you can use the Package Center to download and install all the tools needed to personalize and use the DiskStation DS1621+ in your particular scenario. The Package Center is basically an app store with both solutions developed by Synology and apps from verified third parties.

App Store? No, Package Center

Here are some of the things that you can do with your DiskStation DS1621+:

• Private cloud storage service - you can create your version of Dropbox or OneDrive.
• Cloud backup - you can safely backup data locally from a public cloud service (like Google Drive) using Cloud Sync.
• Multimedia server - you can set the DS1621+ to store and download pictures, music and videos, and then use it to stream your content to the devices that are part of your network.
• Video surveillance - you can use the DS1621+ to store video footage from up to 40 IP cameras and access it whenever needed. There are two free IP camera licenses included.
• Backup server - you can set DS1621+ to create backups of the PCs that are connected to the network.
• Web server - you can install Apache, PHP, and Content Management Systems like WordPress or Joomla, and host your own websites.
• Web-based collaboration platform - you can install multiple tools for building a web-based collaboration platform: a chat service, a team calendar, office productivity apps, up to 5 free mail accounts on Synology MailPlus.
• Virtual machine manager - you can run multiple Windows, Linux, or even DSM virtual machines on the DS1621+.

Other packages can help turn your NAS into a VPN server, e-mail server, and even an LDAP server.

The Synology DS1621+ has a Virtual Machine Manager module

Link aggregation is a useful feature, but does little to mitigate the 1Gbps limitation of the network adapters. Especially since the CPU and file system can handle a large number of concurrent users, if you need a NAS for multiple file transfers and you think you will be limited by the network adapter bandwidth, you can purchase a PCIe expansion card.

The support documentation is easily accessible and detailed. In the DSM Help module, you get information about its features, links to tutorials, as well as links to videos that showcase the potential of your NAS, and how to set it up.

The DSM Help documentation

If you are to use the DiskStation DS1621+ in a home setting, make sure to schedule regular maintenance that includes dusting and cleaning the device, as it has no dust filter. Also, depending on the workload, the fans can get very loud. During our tests we didn’t manage to load the powerful processor at more than 60% of its capacity, but having six drives and two SSDs in such a small enclosure can lead to high temperatures nevertheless. Speaking of temperatures, the drives never went past 98.5 degrees Fahrenheit (37 degrees Celsius) during our tests. The SSDs were just a bit hotter, at 104 degrees Fahrenheit (40 degrees Celsius).

The Synology operating system is, we believe, the most advanced and user-friendly management system for network-attached storage solutions. We had no trouble setting up the Synology DiskStation DS1621+ and, while we didn’t have enough time to test out each individual scenario, we can safely say that this NAS is a very powerful tool for small businesses and enthusiasts.

How fast is Synology DiskStation DS1621+ at transferring data?

Since, after all, it is a NAS solution, we tested the transfer rates to and from other devices on the same network. The results were predictable, given the specs of the device: using link aggregation, the transfer speed maxed out at 1032 Mbps for writing data to the DiskStation DS1621+ and 1792 Mbps for reading data. This is the best-case scenario, with SSD cache and link aggregation turned on. Without link aggregation, the values were obviously lower, as the bandwidth was limited to 1 Gbps: 916 MBps for writes, 906 Mbps for reads.

The read speeds with link aggregation are very good

When we disabled the read/write cache provided by the SSDs, there was very little difference in terms of read speed from the device.

Turning off SSD caching has little effect on sequential transfers

This result is to be expected, as RAID 10 already has enough read/write bandwidth to process the network traffic, even with two aggregated 1Gbps links. SSD caching has no real advantage in this scenario (sequential transfers, with large, contiguous files). Only when the workload includes small files, the SSD caching makes a difference.

The specs of the hard disks or/and SSDs that you install inside the NAS will have the most impact on performance, but if you go with high-speed drives and configurations, you might hit the limitation of the network infrastructure. It all comes down to the predicted workload: make sure you design your solution based on your needs.

What is your opinion of the Synology DiskStation DS1621+?

Now you know more about the Synology DiskStation DS1621+ Network Attached Storage solution, its features and limitations. What is your opinion about the DS1621+? Do you plan to buy one? Are you considering other models or brands as well? If you already own a DiskStation DS1621+, do not hesitate to share your experience with other readers who might be interested in this model.

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