# Drastic Decrease in Scanned Files and Tracks (ref#ORM4E4) **URL:** \ **Category:** Support\ **Created:** [January 17, 2024, 10:57am UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414 "2024-01-17T10:57:41Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 10:57am UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/1 "2024-01-17T10:57:41Z")
## Affected Product Roon ## Roon Issue Category Installation or Setup ## Description of Issue I spent two weeks scanning and had scanned over 600,000 files and nearly 200,000 tracks, but when I checked today, the number had decreased to 40,000 scanned files and 36 tracks. Please tell me the cause. ## Roon Server Platform macOS ## Roon Server Specifications Mac OS\> QNAP NAS\>ROON ## Connected Audio Devices MacBook Pro 2021 M1max ## Home Network Details QNAP NAS\>Wifi ## Screenshot [![](https://api.typeform.com/responses/files/e6f9562bc6d7759faaea63be877c0b94da7558a78ebb06eb3e16b9e4452d8bf6/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88_2024_01_17_19.55.26.jpg) ](https://api.typeform.com/responses/files/e6f9562bc6d7759faaea63be877c0b94da7558a78ebb06eb3e16b9e4452d8bf6/%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88_2024_01_17_19.55.26.jpg) ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 11:15am UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/3 "2024-01-17T11:15:50Z")
Automatic rescan interval is 4 hours. ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 1:06pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/4 "2024-01-17T13:06:51Z")
This is such a waste of time… Please cancel my 1 year subscription if you guys are not able to help this issue… I did not choose 1 year subscription after my free trial. I was going to choose 1 month subscription. So please refund my money. If you guys can fix this issue, then my 1 year subscription is OK. Many thanks Raita ---
**Author:** ![DDPS](https://community.roonlabs.com/user_avatar/community.roonlabs.com/ddps/32/162722_2.png) [@DDPS](https://community.roonlabs.com/u/DDPS)\ **Post date:** [January 17, 2024, 1:15pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/5 "2024-01-17T13:15:52Z")
@raitautsumi Welcome to the forums. A few things: - First off, it can take some time (maybe over a day) before you hear an “official” support response in these forums; you will generally hear from regular Roon users (like me) before that. - There are a variety of things that can happen that cause that count you are seeing to change - I’m not going to get into that here right now - but a question for you: How many “Tracks” does Roon indicate on your main (home) screen? - Using a WiFi connection for your NAS is a very bad idea, and it is at odds with the requirements that Roon specifies. You need to make sure your NAS is connected to your network via an ethernet connection, and you need to do the same with your Mac (server/core) machine as well. ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 2:23pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/6 "2024-01-17T14:23:10Z")
Thanks for your reply. 1. On main screen, TRACKS doesn’t show anything. Just waiting icon appears. But in Albums, 4354 albums. 2.it’s a, Ethernet\>NAS\>wifi\>Roon remote Roon server is MacBook Pro. ---
**Author:** ![DDPS](https://community.roonlabs.com/user_avatar/community.roonlabs.com/ddps/32/162722_2.png) [@DDPS](https://community.roonlabs.com/u/DDPS)\ **Post date:** [January 17, 2024, 2:49pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/7 "2024-01-17T14:49:05Z")
> [@raitautsumi](#): > > Roon server is MacBook Pro. This needs to be Ethernet-connected for reliable operation. ---
**Author:** ![Rugby](https://community.roonlabs.com/user_avatar/community.roonlabs.com/rugby/32/360588_2.png) [@Rugby](https://community.roonlabs.com/u/Rugby)\ **Post date:** [January 17, 2024, 2:57pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/8 "2024-01-17T14:57:27Z")
> [@raitautsumi](#): > > 600,000 files and nearly 200,000 tracks, This implies that you are setting Roonserver to scan files which are not music, and I don’t mean cover images or playlists… Is that correct? ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 3:50pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/9 "2024-01-17T15:50:29Z")
Adding info… 1 my NAS is TS-233. 2 bay. Only one 20tb hdd has been using. 2g memory. 2 My Roon server is my MacBook Pro. And connecting network via Wifi. Thanks DDPS, Yes. My situation is 2. So I should connect to ethernet I guess. Is that possible to change my Roon server to my NAS? In Roon instruction that they recommending at lease 4G memory & external SSD. Which QNap NAS & external SSD USB3.0 stick should get? Thanks Rugby, All of my files are Flac files & jpg album covers. ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 4:02pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/10 "2024-01-17T16:02:56Z")
Roon was working correctly since yesterday. It was keep adding(syncing) more tracks to my Roon. No problem to listening all my music library. But today, after adding new music files to the NAS folder (the folder linked to Roon), It started scanning again, and the number of tracks decreased. ---
**Author:** ![Suedkiez](https://community.roonlabs.com/user_avatar/community.roonlabs.com/suedkiez/32/107321_2.png) [@Suedkiez](https://community.roonlabs.com/u/Suedkiez)\ **Post date:** [January 17, 2024, 4:30pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/11 "2024-01-17T16:30:18Z")
> [@raitautsumi](#): > > 2g memory This is far below specification for 200K tracks: > **[Roon Server and Remote specification recommendations](https://help.roonlabs.com/portal/en/kb/articles/faq-what-are-the-minimum-requirements)** > > Recommended Server Hardware Roon Server is the heart of your library. The hardware needed for your server machine can vary based on a number of factors, such as library size, number of simultaneous zones, and DSP use. Run it on Mac, Windows, Linux,... ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 5:13pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/12 "2024-01-17T17:13:05Z")
Ok. I’ll consider to purchase new QNAP NAS sysytem. Which NAS model & SSD are you recommend? ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 5:13pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/13 "2024-01-17T17:13:14Z")
And please share the information how to change Roon server for my MacBook Pro to my QNap NAS. ---
**Author:** ![Robert\_F](https://community.roonlabs.com/user_avatar/community.roonlabs.com/robert_f/32/165042_2.png) [@Robert\_F](https://community.roonlabs.com/u/Robert_F)\ **Post date:** [January 17, 2024, 5:15pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/14 "2024-01-17T17:15:45Z")
@raitautsumi, here is the link from Roon on migrating a Roon Server to a new system: > **[Moving Roon to a new Server](https://help.roonlabs.com/portal/en/kb/articles/migration)** > > Your Roon database contains your edits, playlists, favorites, play history, login information, and settings. When setting up a new dedicated server (like a Nucleus), or just moving between Roon and Roon Server, you may want to transfer the database... ---
**Author:** ![Placebophile](https://community.roonlabs.com/user_avatar/community.roonlabs.com/placebophile/32/178283_2.png) [@Placebophile](https://community.roonlabs.com/u/Placebophile)\ **Post date:** [January 17, 2024, 5:16pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/15 "2024-01-17T17:16:51Z")
Roon will rescan your library whenever it is restarted or you add new tracks. I have about 103000 tracks/160000 files on a USB drive directly connected to my Roon Server PC and it takes about 2 minutes. So this appears to be a hardware issue. (It will take longer on NAS but it shouldn’t take that long) Have you checked Roon Settings\>Library\>Skipped Files ? This might explain why you are ending up with fewer tracks than expected after a scan. ---
**Author:** ![Suedkiez](https://community.roonlabs.com/user_avatar/community.roonlabs.com/suedkiez/32/107321_2.png) [@Suedkiez](https://community.roonlabs.com/u/Suedkiez)\ **Post date:** [January 17, 2024, 5:23pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/16 "2024-01-17T17:23:48Z")
> [@raitautsumi](#): > > I’ll consider to purchase new QNAP NAS sysytem. > Which NAS model & SSD are you recommend? You are close to reaching this database size, so this should be your guide: ![image](https://roon-community-uploads.s3.amazonaws.com/original/4X/b/b/1/bb19f1c8a52751816869759f75bb413b02c33458.png) (From the link I provided) A NAS may also have other tasks to do. Therefore, get the fastest NAS you can, with a modern Intel desktop CPU and with lots of RAM. Or consider using the existing NAS for music storage and a separate Roon Server. > **[Roon Server on NAS](https://help.roonlabs.com/portal/en/kb/articles/roon-server-on-nas)** > > Roon Server requires a more powerful processor than most media servers due to our architecture. Historically, most NAS devices have not been powerful enough to deliver a first-class experience with Roon, but an increasing number are becoming capable.... ---
**Author:** ![raitautsumi](https://community.roonlabs.com/letter_avatar/raitautsumi/32/5_5575768a8748004e209b776fc1b2916d.png) [@raitautsumi](https://community.roonlabs.com/u/raitautsumi)\ **Post date:** [January 17, 2024, 7:42pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/17 "2024-01-17T19:42:39Z")
Thanks Robert, I will be get ready for new faster QNAP NAS & will move Roon sever to NAS. Thanks Jeff, Ok. I guess it’s hardware issue too. Because when I connect MacBook to external hdd, it’s takes 2-3 minutes to scan. Also I was not able findlibrary \>slipped files \>. ![IMG_7890](https://roon-community-uploads.s3.amazonaws.com/original/4X/5/e/6/5e6e434ec79644d3ea04e29b21dcb94eb75c8cc6.jpeg) ![IMG_7891](https://roon-community-uploads.s3.amazonaws.com/original/4X/2/a/3/2a34fc726144058e10a02eef0ba2d39509c39fdd.jpeg) Thanks Suedkiez, Yes, I’m going to get faster NAS. And I will consider to purchase the device for Roon OS. Which device are you recommend? ---
**Author:** ![WiWavelength](https://community.roonlabs.com/user_avatar/community.roonlabs.com/wiwavelength/32/50562_2.png) [@WiWavelength](https://community.roonlabs.com/u/WiWavelength)\ **Post date:** [January 17, 2024, 8:19pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/18 "2024-01-17T20:19:14Z")
> [@raitautsumi](#): > > I will be get ready for new faster QNAP NAS & will move Roon sever to NAS. No, a faster NAS to run Roon server is apt to be just a faster horse. When in your case, you need the equivalent of a car or even a truck to run a Roon server with a 200,000 track library. AJ ---
**Author:** ![Jim\_F](https://community.roonlabs.com/user_avatar/community.roonlabs.com/jim_f/32/306918_2.png) [@Jim\_F](https://community.roonlabs.com/u/Jim_F)\ **Post date:** [January 17, 2024, 8:20pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/19 "2024-01-17T20:20:55Z")
Roon Nucleus Titan. EDIT: Nucleus can connect to your music files on your NAS via your network and ethernet connections. ---
**Author:** ![Suedkiez](https://community.roonlabs.com/user_avatar/community.roonlabs.com/suedkiez/32/107321_2.png) [@Suedkiez](https://community.roonlabs.com/u/Suedkiez)\ **Post date:** [January 17, 2024, 8:21pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/20 "2024-01-17T20:21:19Z")
> [@raitautsumi](#): > > And I will consider to purchase the device for Roon OS. Which device are you recommend? Either a desktop/tower-type computer that’s as fast as possible with plenty of RAM or a NUC11 or newer with i7, at least 16 and maybe 32 GB RAM and running ROCK. Generally, single core speed is the most important thing about the CPU. (Many cores is not so important unless you output to several zones). Don’t use server-type CPUs like Xeon that have lots of less fast cores. For the desktop-type computer, use the OS what you are comfortable with. Windows, Linux, and Mac (e.g. a Mac Mini M3 if you can) are all fine. The NUC models that are supported by ROCK are listed here: > **[Roon Optimized Core Kit](https://help.roonlabs.com/portal/en/kb/articles/roon-optimized-core-kit)** > > Let's first explain what Roon OS is, and then we can talk about Roon Optimized Core Kit. Roon OS is a custom Linux based operating system, tailored for running Roon Server and providing a best-in-class, appliance-type user experience. Roon OS boots... Note that NUC13 is not yet on the list, but there are reports that they work very well with ROCK (but not the HDMI output). If considering ROCK, you might want to wait a bit because Roon has said that they have a successor to the Intel NUC platform in the pipeline as the supported computer for ROCK. And they have just announced the Nucleus Titan as a very fast new Roon device. (Of course, if you have money to spare, you might consider the Titan itself, but it starts at $3.5K and you get a lot of computer hardware for this money if you don’t need it from Roon directly) There are many forum topics about all of this. Note that there are some limitations in Roon at least currently (which may or may not be improved) with certain library structures. With a fast computer you should be fine with 200K tracks anyway, but try to avoid this if you can: - Very large numbers of local albums that are “unidentified” by Roon because there is no metadata. (A typical culprit are, e.g., downloaded band live concert archives or bootlegs) - Single artists with 100+ albums or 1000+ tracks. - Many Albums with 100+ tracks. - Roon tags that are applied to hundreds or even thousands of items. Examples for support cases and ongoing discussion about these topics are, e.g., here: > [@Do regular (daily) restarts of roon have a negative impact?](https://community.roonlabs.com/t/do-regular-daily-restarts-of-roon-have-a-negative-impact/260629/10): > > @Joachim_Herbert, We’ve taken time to look through available diagnostics and reviewed previous cases concerning ongoing poor performance. There are always ongoing efforts to debug and improve Roon, and at times, you’ve encountered known slowness related to search indexing or other processes that we have improved. But we need to set expectations and limits concernign library size and, more importantly, the breakdown of the content within the library. The common factor across all of your poorly… > [@Roon ARC Crashing, Additional Roon Symptoms](https://community.roonlabs.com/t/roon-arc-crashing-additional-roon-symptoms/255436/4): > > Hi @ToKr, Thank you for your post. We’ve split your topic into a dedicated thread since the move to #earlyaccess hasn’t resolved symptoms from the previous thread. Please give the following a try at your convenience, as we want to isolate a number of variables involved after reviewing available diagnostics: Disable any Roon Extensions temporarily and note any performance difference, particularly in Roon Your Roon library contains over 100,000 tracks unidentified by Roon’s metadata analysis. … > [@ROON painfully slow after update with large library sizes \[Roon Investigating\]](https://community.roonlabs.com/t/roon-painfully-slow-after-update-with-large-library-sizes-roon-investigating/236731/46): > > Hi everyone, We’re investigating this issue with development. There’s likely a constellation of potential causes for the sluggish performance you’ve reported, all related to the breakdown of user libraries. We’re teasing out these causes to debug them. Who here has at least one artist in their library with over 1000 tracks? Who here has at least one artist in their library with over 1000 albums? Additionally, if you navigate to Roon → Settings → Library and click “Clean up Library” to open t… > [@Roon ARC on iPhone 15 not working after build 1353](https://community.roonlabs.com/t/roon-arc-on-iphone-15-not-working-after-build-1353/259410/27): > > Hi @Norman_Spector, @Placebophile Thank you for your patience in awaiting a staff response - we have been investigating these reports in the meantime, but we wanted to perform some due diligence to guide our investigation first. If you are encountering a blank screen within ARC after it requests to log in, then you are very likely encountering a known issue present in the production build for which we are actively developing a fix. [This is tracked here](https://community.roonlabs.com/t/roon-arc-on-iphone-15-not-working-after-build-1353/259410/15). If you are encountering: a) longer-… ---
**Author:** ![Placebophile](https://community.roonlabs.com/user_avatar/community.roonlabs.com/placebophile/32/178283_2.png) [@Placebophile](https://community.roonlabs.com/u/Placebophile)\ **Post date:** [January 17, 2024, 9:06pm UTC](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414/21 "2024-01-17T21:06:17Z")
I doubt skipped files is the issue here but FYI: that field doesn’t show up in settings on phones. You’d need to use a tablet or the desktop app. [Next page](https://community.roonlabs.com/t/drastic-decrease-in-scanned-files-and-tracks-ref-orm4e4/262414.md?page=2)