Synology 2 Bay NAS DiskStation DS718+ (Diskless)
- 2 GB DDR3L-1866 memory (scalable up to 6 GB); Scalable up to 7 drives with Synology DX517
- Quad-core processor with AES-NI hardware encryption engine; Dual 1GbE LAN with failover and Link Aggregation support
- Encrypted sequential throughput performance at over 226 MB/s reading and 184 MB/s writing
- Advanced file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder.Two channels H.265/H.264 support 4K video transcoding on the fly
- CPU Frequency:Quad Core 1.5 burst up to 2.3 GHz
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From the manufacturer
High-speed scalable storage server
Featuring a powerful dual-core CPU, Synology DiskStation is perfect for home users or small businesses looking for a compact and reliable shared storage solution to process intensive workloads.
Next-generation file system for better data protection
The DS718+ integrates the Btrfs file system, delivering the most advanced storage technology to meet the management needs of small businesses.
DiskStation’s real-time H.265/H.264 4K video transcoding provides hassle-free and high-quality video playback among various devices.
- Quad-core 1.5 GHz CPU
- Over 226 MB/s sequential reading and 188 MB/s writing
- 2GB DDR3L-1866 memory (expandable up to 6GB)
- Three USB 3.0 ports
File sharing and syncing
With comprehensive support for network file sharing protocols — like CIFS, AFP, NFS, FTP and more — DiskStation allows the entire office to centralize files and collaborate on projects. Or synchronize files across multiple devices or even across several locations so remote teams can work together.
Your own personal multimedia server
DiskStation allows you to transcode H.265/H.264 4K videos to 1080p and stream them to high-definition TVs, digital media players, mobile handsets, and computers in the required format, making it easy to watch your entire multimedia library without having to install a 3rd party player.
Maintain control of your data and ensure your files are safe with Synology. We provide secure, reliable, and affordable solutions that make it easy to backup files for all your devices and protect yourself from accidental data loss.
24/7 smart security solution
Surveillance Station delivers intelligent monitoring and video management tools such as managing multiple IP cameras with live streaming, integration of I/O modules and more to help safeguard all the important places in your life.
|Synology DS218+||Synology DS718+||Synology DS918+||Synology DS1019+|
|Maximum Drive Bays with Expansion Unit||2 (no expansion unit support)||7 (with DX517 expansion unit)||9 (with DX517 expansion unit)||10 (with DX517 expansion unit)|
|Maximum Raw Capacity with Expansion Units||24 TB (12 TB HDD x 2) (Capacity may vary by RAID types)||84 TB (12 TB HDD x 7) (Capacity may vary by RAID types)||108 TB (12 TB drive x 9) (Capacity may vary by RAID types)||140 TB (70 TB + 14 TB drive x 5) (Capacity may vary by RAID types)|
|Hot Swappable Drives||✓||✓||✓||✓|
|CPU||Intel Celeron J3355 Dual-core 2.0 GHz||Intel Celeron J3455 Quad-core 1.5 GHz||Intel Celeron J3455 Quad-core 1.5 GHz||Intel Celeron J3455|
|Hardware Encryption Engine (AES-NI)||✓||✓||✓||✓|
|Memory||2 GB DDR3 (Expandable up to 6GB)||2 GB DDR3 (Expandable up to 6GB)||4 GB DDR3 (Expandable up to 8GB)||8 GB DDR3L|
|1GbE LAN Ports||1||2 (with Link Aggregation / Failover support)||2 (with Link Aggregation / Failover support)||2 (with Link Aggregation / Failover support)|
|Hardware transcoding engine||H.264 (AVC), H.265 (HEVC), MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frames per second (FPS): 30||H.264 (AVC), H.265 (HEVC), MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frames per second (FPS): 30||H.264 (AVC), H.265 (HEVC), MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frames per second (FPS): 30||H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 30|
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4 customer reviews
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Anyway, I bought it as a regular storage in mind. I knew I can install some apps and extend the usage but did not realize how much capable this machine is. there are two main apps that have blown my mind. first one is docker. it has replaced my home assistant instance which I was running on a RPI earlier. Then plex server in another container which was earlier running on my mac mini. I am also running pihole in another container.
The second app is the virtual machine manager. I have moved 2 large virtual machines, which I was running on a macmini earlier on to this. they are huge (250 gb each). I never thought this NAS could handle 4 docker containers and 2 virtual machines with out any issues. the cpu never crossed 40% (peak), usual stays under 10%. Also I have upgraded my ram to 16gb though they say the maximum is 8GB, it works flawlessly. definitely recommend this.
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I originally submitted an update to this review about a week ago and it did not see the light of day. No explanation from amazon as to why it did not get posted but I am submitting it again in hopes that it will go through.
I have been a synology fan boy for several years now. I suffered through the DSM issues and poor hardware choices because I was able to get it to work and it functioned well for my purposes. This is my fourth unit (two have gone into retirement and one other is still on the network chugging away) and when I first got it I loved every bit of it. The original review is below and you can read it if so inclined, but for this update I am going to cover the biggest issue to date and why this will be my last Synology NAS. When I purchased this unit I did so with the intent of using it as a video/music/NVR server. As a video server it functions great with Plex, and it works well as a music server as well. The NVR was simple to set up and where I ran into my first problem. With this unit specifically, you can attach two IP cameras out of the box, if you want to add more you have to purchase licenses to do so. These licenses can be bought individually, as a four pack or as a 8 pack and are not cheap ($57 for 1, $200 for 4 or $370 for 8). Now I know some people are probably wondering what I am complaining about with regards to the licenses so I will explain. These licenses do nothing more than allow you to connect additional cameras to YOUR NAS. They do not come with an external cloud or monitoring service. It is simply a charge for the convenience of using YOUR cameras, on YOUR NAS, on YOUR network, all of which YOU pay for out of YOUR pocket. This in my opinion is nothing more than a money grab by Synology, there is no reason that I can see as to why I have to pay to do this. I could go on but will leave it at that and instead move on to the other money grab. The eSata port bait and switch! Synology advertises the expandability of this NAS and goes on to say that you can do so via USB
or eSata port, the usb port is an absolute yes, you can add whatever you like to the USB port and chug right along. The eSata port on the other hand is a whole other animal. They say you can expand your NAS via eSata but what they don't tell you is that you can only do so if you purchase a Synology expansion bay. Any other eSata device you attach will not only NOT be recognized, it will not even register as attached. For the record, I read the fine print and even went onto the synology website to see if I could find any mention of this and as of today, I was unable to find anything that says that the eSata port is only for use with other Synology products. I had to call technical support to get that nugget of information, which of course only came after I had purchased an external eSata drive specifically for use with my Synology NAS. I can honestly say that I am saddened to see Synology move into the Apple world of propriatairianism (so not a world) and lack of disclosure. At this point I feel that the only thing Synology is doing is trying to figure out more ways to get their money out of my pocket and it is for that reason that once my Synology NAS's have reached end of life I will be moving on to a more customer centered brand of NAS. Shame on you Synology, SHAME!
Just to be clear, for those considering a synology NAS, my issue is not with the functionality of the NAS, it is with the lack of transparency in their product description and advertising. To me, they are doing everything they can to lock you into their product lines by limiting what you can do with the equipment once you have spent money on it and not disclosing those limitations and/or add on costs before hand. Again, Shame on you synology!
This was an upgrade from my original Synology NAS which did not stream video very well and was very slow. I love it but can say without a doubt that doing the memory upgrade adding the SSD's for cache is what made it perfect. Migrating the files from my old DS 414j was painless though a bit slow. I can however say that there was no data loss and by the next day it was ready to go... yes.. I said the next day. I was also surprised to find that the upgrades I made were needed in order to get it to work as well and as smoothly as a video server. One would think that along with a premium price of $550 that it would work as well without the upgrades as it does with. I am just glad that Synology had the forethought to make it upgradeable which is something that the 414j could have used considering that it cost me almost $400 when I purchased it. If you are looking for a solid out of the box NAS you can consider this as one of your options but know that if you are going to do heavy streaming, especially with something like plex, you will need to do the upgrades. Overall, I give this NAS a solid 4 stars, it could have been 5 had the upgrades would have not been so necessary.
Not only does it happily serve up all my files over the network, it does it fast and with every protocol I've ever seen. SMB? Check. iSCSI? Check. NFS? FTP? Rsync? Yup.
With the ability to run virtual machines (and Docker containers!), I was able to have it take over my power-hungry PC running 24/7 as well as a remote VPS VM I was paying for. It'll eventually pay for itself with power savings and the monthly cost of the VPS.
The interface is great. Very easy to use and very clean. It offers tons of packages you can install to provide various services to your network.
Customer support, while maybe not super fast, is also great. They were able to remotely fix an issue I had come up with the virtual machine manager.
This model (DS918+) can also utilize 16GB RAM, even though it's not officially supported. I highly recommend upgrading the RAM if you plan on running virtual machines. I did some research and found most people recommended this kit: Crucial 16GB Kit (8GBx2) DDR3/DDR3L 1866 MT/s (PC3-14900) SODIMM 204-Pin Memory - CT2K8G3S186DM. I installed it without issue and it's been working great.
So far I am very happy with this purchase.
Along with drives, I also installed a M2 NVMe drive for cache set up. Later when setting it up you see that a solo cache SSD maximizes the read speed, to get the best performance for read and write tasks you need to have 2 SSDs for caching. I’ll need to do some testing and research here. I’m sure someone else has figured it out already!
I unboxed in 2 minutes, mounted drives into the slots took about 5 minutes and booted in 3 minutes (not fully set up but access to the web utility pretty quickly for first boot).
You'll be prompted to create an account and install DiskStation Manager. SO, after you order, go ahead and download your PDFs and the DS Manager from Synology and have it ready to go. The DS Manager setup had a 10 minute countdown but on my unit it took 5 minutes.
The admin website interface is a very nice desktop OS like navigation. You can install apps from Package Center, there is a Control Panel and a File Navigator inside the ‘shell’ to start you off. But first you’ll go to Storage Manager to set up your drives.
I got this more for media storage, so to max use my new drives I went with Raid 5. It took about 12 hours to run the Parity Consistency check. But I checked after about 2 hours and at that time I had space available and usable, so I copied a few things over to get started. This may have been the case from the start.
Overall, set up was easy, I’m not a novice but not a super expert. There were guides and menus along the way to help folks new to setting up a NAS and the Synology boards are very active for research.
I’ll add an update later if I have anything significant regarding performance or experience, but so far it does what it says and am happy with the unit.