Inaccessible Core (pulsating icon for hours)

While away from home last week, my Rock became inaccessible via ARC. When I got home I saw that the NUC/Rock was powered up, but it didn’t appear on the network.After rebooting it, it appeared on the network, but it did not see the attached external USB drive that holds my library. The Roon interface appeared, but asked me to point to a library. So I disconnected and reconnected the external drive. Now that drive shows up on the network, but I get the pulsating circle icon, which has been all I can see in Roon for the past two hours. When I try to connect via ARC, I get this message: “There is an issue with your Roon Server Your Roon Server is online but there’s an issue that is preventing access. Go to the Roon app for more information.” (All I see in the Roon app, from any device, is the pulsating circle icon.)

My NUC/Rock has been pretty trouble free for a year plus, until now. I have made no changes to my network, etc.

What is going on here? Thanks in advace for any help.

What format is the external drive? Is it NTFS?

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Thanka for responding. It is formatted as exFAT (I’m mostly a Mac guy at this point).

I just connected the SSD to my Mac and ran the Disk utility on it – it found no errors.

When I disconnect the SSD containing my library, Roon starts up, but shows 0 tracks in my library, of course.

… aaaaand now when I reconnect my SSD, everything is working again. Relieved it works, but would sure like to understand what happened.

…aaaaand it was functional for less than five minutes before the music stopped and I got a message in the client app saying “There was an issue loading your library – to avoid data loss, restore from a backup or head over to our help center.”

I tried following the process on the help page (restoring the DB from a backup) and it keeps failing.

Now I’m getting really concerned.

Hi @John_Steinberg ,

Thanks for reaching out. I’ve tried to enable remote diagnostics for your account, but it looks like your ROCK is not responding. Can you please use these instructions to manually access your ROCK/Data/RoonServer/Logs folder, upload a set to the below link and let us know once uploaded? Thanks!

https://workdrive.zohoexternal.com/collection/8i5239cc05950ac07456889838d9319545a82/external

Thank you for trying to help with my very wounded server. I have uploaded a zip with the log files.

Wondering if this has something to do with the issues I am having – 0% of 199 GB available for the database?

It seems weird that RoonOS/Roon consumes 200Gb, are you by any chance using the default share as storage or backup location?
But you are correct, it is likely the cause of your issues.

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Thanks. I wasn’t intentionally storing backups there. What’s the best way to fix it?

I’d say you’d be best off by “browsing” to your ROCK share and deleting some of them over the network.
I don’t remember exactly what they look like, but i think that they are located in a separate folder, containing thousands of files, and the folder is named with a guid (a series of hexadecimal letters/numbers)
When you have freed up some 10-15% pf the database drives capacity you should be able to start the Core and adjust your backup location.

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Again, thank you. I tried doing exactly that, and freed up 10% of the disk, but Roon still wouldn’t run. The first time I tried rebooting the Rock wouldn’t even show up on my network, but now it comes up, and when I reconnected my external USB SSD, my library has reappeared. So again, thank you!

The two remaining issues are (a) figuring out why Roon was saving copies of my albums on the internal drive and (b) restoring my database and settings.

As part of the original troubleshooting, I renamed my RoonServer folder RoonServer_old. Roon created a new RoonServer folder which is what is now running, but it has lost all the hours of work I put in cleaning up the library and it has lost its memory of my client devices. So I tried renaming the “new” file and going back to the original RoonServer folder, but the system goes back to the pulsating icon. So how do I get back my old DB and settings?

OK, I did a database restore, and everything finally looks normal now.

So all that is left is to figure out how to stop Roon from copying files onto the internal drive…

Glad you seem to be on the correct path!
But, i can assure you that Roon does NOT place albums/copies of albums on the system drive. There is likely another function on your network that does this.
And, the system drive is reserved for Roons database and server functions.

The only place where you are allowed to place media files is in the \\ROCK\Data\Storage\InternalStorage mount.
(If you have a recognized USB storage device attached it will be present under *\Storage* as well)

Can you post a screenshot of what you are seeing on the Data share?

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Figuring out what’s writing to that drive will take some investigating, but at least my system is functional.

Again, very grateful for the assistance and coaching!

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If you show us a screen shot of your Storage settings along with a screen shot of what the folder hierarchy looks like, on the Data-share, the forum might be able to see whats happening and causing this.

Here (I think) are the suggested screen caps:

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Culprit found! Third folder in your screenshot, “Music”… Does not belong there, and should be placed under Storage\Music_2Tb_*\Music*

What/whoever is storing/backing things there is doing the damage.

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