Synology DiskStation DS1621+ NAS Server with Ryzen 2.2GHz CPU, 4GB Memory, 6-Bay, 72TB Bundle with 6X 12TB Seagate IronWolf

Synology makes a great product. Never let me down. Even switching from a 4 bay to a 6 bay and then back it kept all my data in tact.

Flexibility, 6 bays, setup fairly easy. I’m using 6 4tb drives giving close to 18tb avg. I’m using it on a win 10 network with 4 total NAS units. Speed and function were exactly as I expected. I store photos and data files all critical. I expect long service from the unit, drives will be changed around the 2-4 yr service life on a 24/7 cycle.

Definitely a good investment

Love my NAS great for a pandemic Plex server. Make sure to get NAS drives not desktop drives.

Gonna keep this short. I got the Synology 6 bay NAS DiskStation DS1621+. Great unit. Does everything I wanted except video/plex steaming. (Itll do it, but not well) If youre looking for a streaming box, get an Intel Xeon unit. Intel will have hardware to let you view those 4K encoded videos. But I kitted out mine. Max RAM, Max SSD Cache, and Max HDD. Its more than I need, but Its been super reliable for me. Even in power outages (your milage may vary. I do recommend at least a 2.5 or 10GbE card if you need extra bandwidth. Be sure your computers MoBo supports it if you plan to directly connect it. In short, if you dont need a video connection or video streaming, this is a great option.

The right size unit for the job.

I replaced my QNAP 9-bay ARM based NAS to this, cuz I needed to run home assistant but the ARM HA rom never worked somehow. X86 home assistant works perfectly fine on this Synology unit, but other than that, there are few things that I am not very satisfied with. First, the USB transfer speed was really slow, it supposed be usb 3.1 port but when I try to transfer file from a usb 3.1 external hard drive, it took almost 6 days to transfer 3.5TB files into the nas. I have tried with different usb 3.1 cable, all front and rear ports on NAS, they all ended up with same speed, I don’t know why. Another thing that bothers me is, if I don’t use it for a little while, when I try to open the network mapped drive from my computer, the explorer will freezes for a few mins, feels like the NAS in sleep mode and restarted, but to be honest the response time is more than powering on the NAS from completely off, and I have set it not to sleep or hibernate, kinda confused me, these issues never happened on my QNAP. Other than these, it works just fine.

Unit arrived well packaged and in pristine condition. software was easy to install. initial volume creation for an SHR LUN 4 x 8 TB IronWolf NAS drives took about 12.5 hours. Link aggregation across the 4 x 1 GigE ports was easy and well-documented. Added a 16 GB DIMM without issue. Added a pair of m.2 drives for cache. Added a dual port 10 GigE SFP+ Intel 520 adapter which was trouble free which was aggregated for a 20 Gbps link. It would be nice to have a 2nd one for them to replicate between. maybe someday.

This is my second Synology NAS, I upgraded to the 1620÷ from the 1515÷ and could not be happier.

Have had this for 10 months now, I did max out the ram to 32GB, all bays populated with WD Red Pro drives, along with a DX517 also populated with WD Red Pro drives. The system drives are in an SHR2 array, and the DX517 in a second SHR2 array. Im also using an SSD cache drive (iirc, Samsung EVO drive). Transfer between the system drives and the external are at about 120MiB. Im also getting about the same transfer speed over my gigabit network connection. As to the review comment on USB speeds... You are probably better off adding 10GB Ethernet, though if youre using spinning drives, it wont really matter as USB is faster than what youre going to get out of the drives. Ive setup Plex server for the first time, which was relatively pain free, although the service does seem to have a bug where Plex will hang and need to be restarted on occassion... am considering a crontab to automate this check/restart. I have also enabled SSH. The Application Portal for reverse proxy is a really nice addition, though Im now using a dedicated Raspberry pi for wireguard, pihole and reverse proxy since Docker on this device is a pain, more so without docker-compose. All in all, a night and day difference from my old NAS. That said, many of the applications Ive tried to run arent worth running on this device. If you consider anything beyond file storage a bonus, youll be very happy.