Minimserver, Synology NAS with external usb disk problem

[Forgisound]

I have a Synology DS261j NAS. It is connected via network to DAC Gustard R26 which has an internal streamer.
A 3 TB USB drive is connected to the NAS.
I play through MinimServer which is installed on the NAS, controlled with BubbleUPNP mobile app.
However, MinimServer does not see the external USB drive. It only sees disks on the NAS. Is there any way to set the MinimServer to see the USB drive?
The disk is visible in the Synology file manager application, and Roon can see it on another computer, as well as on the network.

Second question: The sound is great. However, DSD files and PCM HiRes interrupt a lot. I guess the CPU in the NAS is too weak.
Which Synology NAS would be powerful enough to play DSD and PCM HiRes files?

 

[linuxfan]

MinimServer does not see the external USB drive. It only sees disks on the NAS. Is there any way to set the MinimServer to see the USB drive?

Your MinimServer is presently configured to access media files from a particular content directory, specified as a directory path. Like most DLNA servers, MinimServer allows multiple content directories, it's just a question of suitably configuring it. According to this -
https://forum.minimserver.com/showthread.php?tid=5030
the MinimServer configuration interface provided as part of the Synology installation does not accommodate the setup of multiple directories, so instead you must use MinimWatch - installed on a separate Windows or Mac or Linux computer on your network -
https://minimserver.com/minimwatch.html
Take particular note that you will need to temporarily disable your computer's firewall, or alternatively create a firewall rule which allows MinimWatch and MinimServer to connect.

DSD files and PCM HiRes interrupt a lot. I guess the CPU in the NAS is too weak.

I disagree with your diagnosis - MinimServer is simply streaming the audio file - this requires little CPU work. Decoding the hi-res PCM or DSD data is performed at the renderer - which in your case is the Gustard R26. So the Gustard may be at fault ... or you may have network bandwidth issues ...
I think you should ask this question on the MinimServer forum - they have the experience in this area.

 

[phofman]

Does the SoC inside this device support hirez I2S from network streams?

This picture https://cdn.l7audiolab.com/wp-content/uploads/2022/06/Teardown2.jpg suggests a CPU module with SigmaStar S202D SoC. This google-translated specs talk only about 48kHz/16bit I2S output https://wx-comake-online.translate....=en&_x_tr_hl=cs&_x_tr_pto=wapp&_x_tr_sch=http . If it's really the case, the SoC would have to resample from HiRez to 48kHz which may be too much for the two rather weak CPU cores to keep a safe CPU margin to avoid glitches.

Again - just my guess from some quick look. I do not know the real details, it may be (and likely is) completely different.

 

[StevenCrook]

I think you should ask this question on the MinimServer forum

Having looked at the specs of both bits of hardware, the NAS has USB3 so unlikely to be a bottleneck getting stuff off the drive. The DAC is using wired network connection, so should have the bandwidth to receive the files that way.

Definitely go to the minimserver forum, you're much more likely to have people there who're able to help because there will be some who're using that Synology server in the way you are. One thing, how big are the music files?

 

[linuxfan]

the SoC would have to resample from HiRez to 48kHz which may be too much for the two rather weak CPU cores to keep a safe CPU margin to avoid glitches.

If the Gustard's inbuilt streamer is not up to the task, the simple solution would be to add a separate DSD-capable streamer to your signal chain. A Raspberry Pi set up as DLNA endpoint would do the job - suitable software options are Moode or RuneAudio. Connect to the Gustard R26 via USB.