|Hard Drive||48 TB Diskless|
|Number of USB 3.0 Ports||4|
Synology DS1815+ Disk Station 8-Bay Network Attached Storage
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- Setting up one customer-supplied network attach storage unit
- Installing storage software on computer
- Connecting storage unit to network
- Testing and verifying proper connection
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- Quad Core CPU with AES-NI Hardware Encryption Engine
- Four Gigabit LAN Ports with Failover and Link Aggregation Support
- Scale up to 18 drives with Synology DX513
- Expandable RAM Module (Up to 6GB)
- VMware, Citrix, Microsoft Hyper-V Certified
- High Availability and SSD Read/Write Cache Support
- Running on Synology Disk Station Manager (DSM)
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From the manufacturer
Big, scalable storage for all your files
Synology DiskStation delivers massive storage capacity for all your files and important business data. As your storage needs grow, simply scale up capacity by adding an additional storage expansion unit.
Powerful performance for business needs
Featuring a quad-core CPU, hardware encryption engine, and flawless software integration, DiskStation boasts outstanding processing and file transfer speeds.
Protect your data and accomplish more
The intuitive interface allows you to share and synchronize files, manage the office network, and collaborate seamlessly all while maintaining complete control over your data.
- Quad-core 2.4GHz CPU
- 2GB DDR3 RAM, expandable up to 6GB
- Scaleable up to 18 drives with two DX513 expansion units
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.
Bulletproof backup and disaster recovery
Your important files deserve a comprehensive backup plan. Back up files from Windows or Mac PCs to DiskStation, and then add an additional layer of protection by replicating data to another Synology NAS, off-site server, or even a public cloud storage service, like AWS, Azure, Dropbox, Google, and more.
Storage for virtualization
With support for VMware, Citrix, and Microsoft Hyper-V, DiskStation serves as a seamless storage solution for virtualization environments. Consolidate storage in one place and enjoy optimized performance with support for iSCSI & NFS, SSD caching, VMware vSphere 6 & VAAI integration.
High availability and business continuity
By combining two DiskStation servers into a single high-availability cluster, you can maximize uptime and ensure data and services remain available for your employees or users — even when one of the servers goes offline unexpectedly.
Rest assured your data remains safe and secure
DiskStation offers an arsenal of security enhancements and tools to safeguard your data from malicious or snooping parties. You can analyze network traffic, detect potential attacks, and block threats with Intrusion Prevention System (IDS), firewall, auto-blocking, and more. Audit configurations, detect weak passwords, and ensure the system remains free of vulnerabilities with the built-in Security Advisor. Lock down data storage and network communication with sophisticated AES encryption and SSL certification/Let’s Encrypt tools.
|Synology DiskStation DS1515+||Synology DiskStation DS1815+||Synology DiskStation DS2415+|
|Maximum Internal Raw Capacity||50 TB (10 TB HDD x 5) (Capacity may vary by RAID types)||80 TB (10 TB HDD x 8) (Capacity may vary by RAID types)||120 TB (10 TB HDD x 12) (Capacity may vary by RAID types)|
|Maximum Drive Bays with Expansion Unit||15||18||24|
|Maximum Raw Capacity with Expansion Units||150 TB (10 TB HDD x 15) (Capacity may vary by RAID types)||180 TB (10 TB HDD x 18) (Capacity may vary by RAID types)||240 TB (10 TB HDD x 24) (Capacity may vary by RAID types)|
|Hot Swappable Drive||✓||✓||✓|
|CPU||Quad Core 2.4 GHz||Quad Core 2.4 GHz||Quad Core 2.4 GHz|
|Hardware Encryption Engine (AES-NI)||✓||✓||✓|
|Memory||2GB DDR3, expandable up to 6GB||2GB DDR3, expandable to 6GB||2GB DDR3, expandable to 6GB|
|1GbE LAN Ports||4 (with Link Aggregation / Failover support)||4 (with Link Aggregation / Failover support)||4 (with Link Aggregation / Failover support)|
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|Price||From $1,381.65||$599.00||See price in cart||$485.99||$885.60||$869.00|
|Shipping||—||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Available from these sellers||Amazon.com||Price Master Jay||Nspire Store||Amazon.com||Amazon.com|
|Hardware Connectivity||Ethernet||Ethernet||Ethernet||USB 3.0, USB 3.0||USB, SATA 6.0 Gb/s||USB 3.0, SATA 6.0 Gb/s, eSATA, SATA 3.0 Gb/s|
|Item Dimensions||13.4 x 6.2 x 9.2 in||8 x 6.5 x 9.18 in||14 x 9 x 7 in||13 x 15 x 14 in||11.74 x 9.25 x 7.29 in||9.17 x 13.39 x 6.18 in|
|Item Weight||11.66 lbs||4.5 lbs||11.7 lbs||8.62 lbs||16.08 lbs||11.71 lbs|
Synology Disk Station DS1815+ features an all-new quad core CPU with an AES-NI hardware encryption engine, providing outstanding performance and data encryption acceleration. With four built-in Gigabit LAN ports and scalability of up to 18 drives, Synology DS1815+ is the ideal storage solution for centralizing data backups, protecting critical assets and sharing files across different platforms.
Top customer reviews
- easy drive install and basic setup
- compatibility list for drives
- very good software with frequent updates and good package expansion options
- good company reputation, barring that one hacker incident a few years ago
- smaller than any equivalent PC case+motherboard combo that will operate 5 SATA 3.5" drives in RAID
- power cord was longer than most bundled power cords, making placement easier (though the ethernet cables were pretty short)
- expensive for the hardware you get - you are paying for the name (e.g. 2GB of RAM at this price level is weak)
- 2x80mm fans are noisier than most 90/100/120mm fans, which is weird because there are smaller 4 bay Synology boxes with 90mm fans
- drive trays feel flimsy, are plastic, and have no noise/vibration dampening
- no list of approved RAM upgrades other than the Synology direct one (add 4GB for about 100 bucks)
- no case noise insulation either, presumably in the name of ventilation, so the 5x WD Red drives are very audible during read/write
- some security and typical settings are either defaulted off or should be asked during initial setup - you can go back and pick them in control panel later, but they seem like they should be more visible (e.g. what's the name of the Windows workgroup to add the machine to? Should https be used for the admin interface? wake-on-lan enabled?)
- when setting up drives you cannot choose volume labels - it turns out the share folders inside the volumes are what are externally visible to clients, but that's not obvious at the time - it seems like you are going to get a thing on the network like "\\servername\Volume 1" instead of \\servername\photos or whatever.
- one of my fans was defective - made a clicking sound constantly, from inside the fan motor housing (the blades were not hitting anything); the noise was actually worse in quiet mode than in cool (hi speed) fan mode, and updating all the software to the latest versions made no difference
- installing the photo app from synology triggers a multi-day disk activity flurry while it builds thumbnails and indexes your images - there's no warning of this beforehand, and the message when you did into the active process says your image files are being "converted" which is scary
- not sure how their competition does it, but it seems like it should be possible to use the 4 USB3 ports on the back for external drives added to the RAID array, not just as backup and temporary share folders, or the product description should explicitly say they cannot.
After I made sure everything was basically working and the unit wasn't DOA, here's what I did to minimize the bad and ugly:
1. Replaced the 2GB RAM with this 2x8GB RAM kit (search youtube for a video on how to).
Will have to swap back in case of an RMA, but in the meantime it's working fine and I have 16GB, and about 14GB shows up as cache in the control panel. And it costs half what the Synology upgrade to 6GB does.
2. Replaced both noisy fans with quieter ones, getting rid of the clicking from the broken one and lowering the overall noise level.
I went through several stages of satisfaction after getting this, that ultimately reflect the 4 stars, and I'll detail them below:
Stage 1 - Unboxing:
Packing was EXCELLENT. Any shipping co. would have a hard time damaging this, even if they tried. When you finally get the unit out of the various boxes/wrappings, build quality is very good, and it feels solid.
Stage 2 - Initial Setup:
I popped (2) 4TB SATA drives in just to fire it up and test it, and everything worked as expected. I hot-added (2) more 4TB drives, and setup a RAID5 across the (4) and everything was going wonderfully. Last to go was adding (2) Samsung 840 Pro 256GB SSD's for a RAID1, in the slots directly to the right of where I had the (4) 4TB drives. I inserted the first drive, and upon doing so, the SATA drive to it's left momentarily lost power, and the DSM interface informed me a drive restarted, and I should run a consistency check. I installed the 2nd SSD drive anyway, but upon going into the DSM interface to create the RAID1, found that only the 2nd drive was even seen by DSM. I spent the next 30 mins removing and inserting them, double-checking that it was smoothly seating in the backplane, etc. I finally got DSM to recognize both drives, and setup the RAID1.
Stage 3 - Migration:
So, with everything initialized, I start copying data onto the device. It goes well at first, but then, when copying data to the SSD mirror, performance starts getting terrible. After hours of restarting data moves, I decide maybe the device itself just needs a reboot. Upon rebooting, the 2nd SSD drops off completely, but a remove/re-insert after reboot brings it back online. I start researching the issue, and while I can't find anyone having the same issue with the specific drives I'm using, I do notice that the 840 series Samsung drives are not on the HCL. This is surprising since they're not that old, and follow a standard obviously, but reluctantly, I order (2) brand-new 512GB 850 Pros.
They arrive, and I hot-install them, in the same manner as the previous (2) 840's. Sure enough, the adjacant SATA drive restarts again, and I start playing the same game of moving them around trying to get the DSM to see both drives with varying success.
At this point, I power the whole thing down, remove EVERY drive, and carefully check the backplane for alignment, or any other sign of oddity. Everything looks perfect. So, I re-insert all the drives, power it up, and all drives are working correctly (including the (2) new SSD's).. So, I build a new mirror, test the heck out of it, including 5 complete reboots and power on/off's and it's now rock solid. I eventually came to the conclusion that while Synology claims that the drives are all hot-swappable, that in some scenarios, depending on the mix of drives, this just isn't true.
Stage 4 - 1.5 months later
STILL running rock-solid and the performance far exceeds the unit it replaced for both iSCSI LUN's and CIFS file shares. The DSM interface is intuitive and easy to learn, and provides good configuration and metrics. Very good plugin implementation for adding service functionality. Integrates very well with AD, and having (4) gigabit network interfaces provides very good perf. I use the first two in a LAGG to my switch for mgmt and file shares, and the second two in a different subnet for iSCSI MPIO.
Some of my concerns about the black box nature of the array have been borne out: it is difficult to get custom software to run on this. Don't expect it to be a replacement for a general purpose server. It does have a Docker server that it can run, and I've started to use that, but I don't know how many people will be willing to climb that technological hurdle. A lot of the documentation out there (e.g. all the "ipkg" stuff) seems to be outdated, and not applicable to the latest Synology OS.
All that being said, the array has been solid as a rock, so far. The transfer speeds are quite quick, and btrfs seems to be a capable replacement for ZFS for what I need it to do.
Most recent customer reviews
However, and this is not a knock on the product, but instead whoever packed it: It...Read more