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Synology 8 bay NAS DiskStation DS1817+ (8GB) (Diskless)

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  • Quad-core 8-bay NAS with AES-NI support, with over 1,179 MB/s reading and 542 MB/s writing performance
  • PCIe slot for optional 10GbE add-on card. Four 1GbE (RJ-45) ports with failover and Link Aggregation support.
  • Optional M2D17 adapter card for dual M.2 SATA SSDs for cache
  • Memory configuration: 8GB with easily upgradable dualchannel design, up to 16GB
  • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder
  • Scale up to 18 drives with two DX517 expansion units

  • Overview
  • Specs
  • Warranty & Returns
  • Reviews
General information

High Performance NAS Optimized for Encryption and Intensive Tasks

Featuring quad-core CPU with AES-NI hardware encryption engine, Btrfs file system support and quad 1GbE LAN ports, the Synology DS1817+ is a high performance eight-bay NAS server aimed at small office and home office users who want an efficient and secure storage solution to protect and share data, as well as seamlessly synchronize important files. Moreover, this NAS system can be installed with a 10GbE network interface card (NIC) (sold separately) or a dual M.2 SSD adapter card (sold separately), thereby enhancing network speeds or boosting performance with SSD cache.

Supercharge Your Storage with Speedy Performance

Equipped with dual-channel memory and a PCIe slot, DS1817+ supports installing the dual M.2 SSD adapter card, M2D17, or the 10GbE NIC, for high-IOPS system cache and ultra-fast data transmission respectively.

General information

Dual M.2 SATA SSD slot, compatible with 2280/2260/2242 form factors

General information

10GbE network capacity for bandwidth intensive environments

General information

Dual-channel memory that boosts the performance by 20%

Note: M2D17 and 10GbE Network adapter card need to be purchased separately.
DS1817+ with M2D17 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported.

Next-Generation File System for Effective Data Protection

The Btrfs file system introduces the most advanced storage technologies to prevent data corruption and reduce maintenance overhead with optimized snapshots. It ensures high-level data integrity, while taking advantage of flexible, efficient data protection and recovery tools.

General information

Flexible Shared Folder / User Quota System provides comprehensive quota control on user accounts and shared folders

General information

Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots

General information

File- or folder-level data restoration accelerates data recovery and provides flexibility

General information

Automatic file self-healing detects and recovers corrupted files without user intervention

Ultimate File Management and Sharing

The web-based File Station is a user-friendly management tool built to allow intuitive, drag-and-drop operation without any complex setup required on your Mac or PC. The advanced search and filtering tools enable easy organization and sharing that entails just a link. Compatible with SMB, FTP, AFP, NFS, and WebDAV, File Station suits all environments.

General information

Real-Time Collaboration on Your Private Cloud

Office is a collaboration package combining the convenience and usability of public clouds with the data privacy and security guaranteed by private clouds. It allows you to work seamlessly together on documents and spreadsheets in a protected environment.

General information

Fully Certified Storage Virtualization Solutions

Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

General information

More Advanced Features

General information

Surveillance Station
Complete home surveillance solution for recording and monitoring.

General information

Desktop Backup
Simplified backup solution for your Mac, PC, and mobile devices.

General information

Hyper Backup
Block-level incremental data backup in multiple versions and cross-version deduplication.

General information

Award-winning operating system with an intuitive user interface and powerful capabilities.

General information

Comprehensive built-in security utilities constantly updated to tackle evolving threats and protect your devices.

General information

All-In-One Server
A server that saves you additional investment by integrating various networks, web/mail services, plus management applications into your business system.

Learn more about the Synology Inc. DS1817+ (8GB)

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: Non-refundable
    • Return for replacement within: 30 days
  • This item is covered by's Replacement Only Return Policy.
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Synology always has good products 3/20/2019 5:50:27 AM

Pros: I had my Synology DS1517+ now for 7 months and it has been an awesome NAS for me. The system is perfect for my needs, but you could do so much other stuff with this. I run my Plex thru this and I have no complaints. I have 5 8TB WD Red drives so I plenty of space.

Cons: None at the moment

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
12/2/2018 11:51:37 PM

Pros: Good service

Cons: all alright

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Ownership: 1 day to 1 week
Verified Owner
1/ 5
Don't buy the extra RAM 10/23/2018 9:28:45 AM

Pros: Easy to Use.

Cons: Don't buy the RAM for it. It comes with 2 x 4GB Sodimm's and only has 2 slots. The RAM they sell separate is also 2 x 4GB Sodimm's, which means you can't add it to the machine. Then they charge a $30 restocking fee to return the unusable RAM you bought.

Overall Review: Good Product, just don't get burned on the RAM scam

0 out of 3 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Good product 9/15/2018 8:54:26 AM

Pros: Good quality product. Its quick and easy to get setup and going with the basic functionality. Tech support is pretty good and quick to respond. I've contacted them about 3 times now with a few questions that ended up being user errors.

Cons: Alot of features with frequent updates. It can get confusing/difficult to find the right menu/setting to get it to do what you want but there are tons of places to ask for help including synology themselves if the forums aren't doing it.

Overall Review: If I had to do it over again I would've bought this product way earlier. It is so much less to manage than a traditional windows server which is where I came from. It is quieter and takes up way less space. Maybe the only downside is the power of the CPU but depending what you're going to do with the unit its not really an issue.

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Ownership: 1 day to 1 week
Verified Owner
5/ 5
Fantastic NAS 8/4/2018 9:43:17 AM

Pros: Very flexible, intuitive and clean UI, easy to setup and manage. Loaded with apps of all kinds for media, backup and other 3rd party apps. You can expand its RAM, cache and add 10gb network support. I have 2 DS416j's as well and these have all performed flawlessly. One of those units suffered a power failure in the middle of an OS update and died however Synology support was good and replaced the unit for me. I'm sure the DS1815+ will perform just as well and it has so far. I can't say enough good about these units.

Cons: One issue is its 16tb volume limit. I was able to create a drive pool with max space but it left me with one 16tb volume and 9tb of unallocated space. I can't find a spot to expand the volume however I was able to create an additional 9tb volume and utilize the space. Maybe if I blew away both volumes and tried to create a single volume from scratch but since I can use all of the space I can live with that. The only other thing I would mention is I wish it was a bit more powerful so I could stream 1080p reliably. Also its lack of DTS support however there are very few NAS's that will do these things at this price range. The rack units will do it apparently but they're expensive.

Overall Review: I originally had 2 Synology DS416j units, 4x4tb each, 2-way replicated to each other. I was running low on space so I bought the DS1815+. After backing up all data twice, I intended to populate the 1815 with the 8x4tb from the above units and start from scratch. I added the drives in no particular order, powered up and the first thing it says is, "It appears you've moved these drives from a DS416j. Click to continue with migration". Really? I had no other choice or way to abort so I followed it through. In less than a minute the unit was up with 2 volumes, each with the data from the previous 2 units. Since the 2 units were identical, I deleted the second disk group and expanded the first one. After 26 hours it left me with a 25tb disk group and a 16tb volume. I'm not sure why because according to Synology this unit should support up to 106tb/volume but I can live with 2 volumes and it saved me days of data copying. The other 2 units are now populated and serve as Hyper Backup vaults. All this with no problems at all.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Very fast and easy to setup. Great features. 7/9/2018 5:40:59 AM

Pros: Edit: July 9, 2018 - 7 months into use and this unit is working flawlessly. Apps and OS update automatically and the hard drives are showing no bad sectors. I have it plugged into a dedicated UPS and it lets me know when power fluctuates. Still the best NAS I've owned to date.

Jan 2, 2018 -
This NAS is the fastest I've used to date. The DiskStation software that comes with it makes it super simple to setup.
Installing the hard drives took less than 10 minutes and likewise configuring it on as network share took another 10 minutes. I am running with 8, 4TB WD Red NAS HDDs in a Raid 10 Configuration. One of the coolest features is the ability to sync to other cloud provides like Box and DropBox automatically. The self-testing of the hard drives and email reports give me a piece of mind. This automated almost my entire backup solution for onsite and offsite. The NAS has dual fans and you barely notice the unit when its on.

Cons: You'll need to understand how to setup volumes and RAID systems if you want to use this system for backup. The DiskStation software is great but its not meant for non-computer literate people. I am an engineer and set this up with no-problem but I could see how someone else could get lost very easily.

Overall Review: We'll see how this stands the test of time. I've only been using it for a few days now.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Works as advertised - easy to set up 3/31/2018 1:37:04 PM

Pros: This replaced my Dual XEON server that was used for file sharing, and ran a VM for a domain controller for DNS and AD. Unit is much quieter than the server it replaced and was easy to configure. It also is easy to add additional drives as you need them.

Cons: - none - it works like it should and I have had no problems.

Overall Review: Would I buy it again? - Yes

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Ownership: 1 month to 1 year
Verified Owner
4/ 5
Great mid-level NAS device - Could use a bit more horsepower 1/25/2018 10:16:20 PM

Pros: This comes with a full-feature and easy to use OS that makes adding modules very easy. RAID set-up is easy and gives lots of options. I originally started with 3x 8tb WD Red's but later expanded to two more as my capacity decreased. Expanding the the volume was easy, but takes about three days to complete.

Cons: The built-in CPU debuted several years ago and Synology could have included a modern CPU that has more power that would not have increased the cost of the unit. I purchased this unit for back-up and as a Plex server, but didn't do my homework on the later. It touts it's built-in capabilities but the processor can barely handle a single stream and does have to buffer. While this is my fault for not checking the CPU specs, I am taking off an egg for that alone.

Overall Review: I would still recommend this unit for its ease of use, but I ended up building a server to run Plex. Since Synology supports iScSI natively, it handles this well.

1 out of 2 people found this review helpful. Did you?
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