Synology DX517 5 Bay Desktop Network Attached Storage Expansion Enclosure, Black

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The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers. Given the high cost of the DX517 (and I presume its rumored, impending replacement will be about the same), I'm wondering what people are using it for. I see some posters noting that they have two, or even three of these expansion units. You can save a few hundred dollars over another NAS unit, and I suppose you don't need to deal with more configuration, but why put money into a DX517 instead of larger drive sizes?

Managed from DiskStation Manager on the host NAS, the additional bays in the DX517 are immediately ready to be used once connected. On-the-fly volume expansion ensures that storage and services on the host are not interrupted during volume expansion. Hot-swappable drive tray design I currently have all of my media on volume1. I’ve heard/read that trying to span volume1 across the DS918+ and DX517 is a recipe for disaster, so if I get a DX517 expansion unit would I be able to put new media on volume2 and have Plex/Sonarr/Radarr play nice with the new storage pool?I upgraded from a Drobo to a ds1621+ a few months ago and it has been great! I made what seems to be a common mistake (given other posts here) and assumed that the DX517 expansion unit would seamlessly give me another five drive bays for when I was ready to expand. I have accumulated a number of hard drives in the process of upgrading and like the idea of putting them to use, but in reading about the DX517 it seems it'd be fine to create a second storage pool, but it's extremely risky and poor practice all around to spread your volume between the drives in the main NAS unit and drives in the expansion unit. This sub has talked me out of that idea - I don't want to risk it. SSD cache can be enabled by using 2.5" SATA SSD drives in standard drive bays or without occupying drive bays by installing Synology SNV3400 Series M.2 NVMe SSD drives through the built-in M.2 slots. SNV3400 Series M.2 NVMe SSD drives can also be used to create SSD storage pools. Drives are sold separately. Create and edit documents, spreadsheets, and slides together with your whole team in real time. Easily migrate existing documents from other platforms and take ownership of your files in a secure private cloud. Learn more Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.

Performance figures are obtained through SMB sequential throughput tests using Windows Server 2016 Datacenter on a Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. This may be one of those cases of "if you have to ask, it's not for you," but I raise the question mostly because I still really like the idea of the expansion unit and still think it might be something I could make use of - I'm just trying to recalibrate my expectations and figure out if it's still something that could be useful for me. I am currently using only two of the DX517's five bays, for a total storage of 46 TB across six 8 TB drives, and a total occupancy of 25 TB (54%). Each 8 TB drive has 7.676 TB storage available. The NAS's operating system reserves 0.324 TB of space on each drive. Filling the remaining three bays with 8 TB drives would provide 69 TB total storage with a currant occupancy rate of 36%. Need Help? Been quoted elsewhere? Take advantage of our Price Promise. Call our Server Team on 0871 984 4418or...Synology DS1621+ is a powerful and compact 6-bay network attached storage solution designed to store and protect critical data assets. Today’s growing amount of unstructured data requires smarter and increasingly higher performance methods of storing, accessing, and collaborating. Designed for scalability, the DS1621+ enables you to start small, then expand as your data grows. Managed from DiskStation Manager on the host NAS, the additional bays in the DX517 are immediately ready to be used once connected. On-the-fly volume expansion ensures that storage and services on the host are not interrupted during volume expansion. The storage space on my Synology NAS (DS1520+) is running out. That's why I bought an expansion unit (DX517). Now I saw your video on youtube called "Understanding the Pros and Cons of the Synology DX517 Expansion - Part I". Unfortunately, part II and III have not been released yet. (Hope they will in future). I am sure that you may would have answered my question in video part 2 or 3. Extend the standard 3-year hardware warranty of your DS1621+ with 2 more years of Synology-certified support and premium services that help you recover faster in the event of disaster. Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).