Regularly clearing the cache is essential for ensuring the stability of Synology Download Station. As the number of download tasks increases, the accumulated cache can take up a significant amount of storage space, which may slow down the system or cause performance issues. Clearing the cache promptly not only frees up storage space but also reduces errors caused by excessive cache buildup, ensuring that Download Station operates efficiently.
In today’s age of information overload, virtually every action in our daily lives relies on the internet and smart devices. Downloading—whether it’s work files, study materials, or entertainment content—has become an indispensable part of our daily lives. As a powerful network storage server, Synology devices offer a solution for centralized data management and storage, greatly facilitating our daily lives and work. However, as usage frequency continues to increase, the accumulation of excessive cache files has become a problem that cannot be ignored. Simply put, cache files are files automatically generated and temporarily stored by the system to improve data processing efficiency. They help devices respond quickly to user requests and improve the user experience. However, when these temporary files accumulate in large quantities, they consume a significant amount of storage space. This not only affects the efficiency of download tasks but can even lead to download failures or system crashes in some cases. In such situations, it is particularly important to regularly check and clear the cache files in Download Station. The benefits of regularly clearing the cache go beyond this. First, it helps free up storage space, which is especially important on devices with limited storage capacity. Once storage space is freed up, the performance of Synology devices improves because the system can run more smoothly, handling more tasks without lag or crashes. Second, regularly clearing the cache can also increase system stability and reduce the number of download failures caused by system errors. Furthermore, this helps prevent other potential issues resulting from insufficient storage space, such as file corruption or data loss. So, how do you regularly check and clear the Download Station cache files on your Synology device? Typically, the user interface of Synology devices provides the necessary tools or options to help users complete this task. Users can access the Control Panel through Synology’s DSM operating system to locate the relevant cleanup tools and follow the on-screen prompts to clear the cache. Additionally, you can set up a scheduled task for automatic cleanup to avoid issues caused by forgetting to clear the cache manually. In summary, as the frequency of Synology device use continues to increase, regularly checking and clearing Download Station cache files has become a necessary measure to ensure stable download services and smooth system performance. Through these simple steps, you can not only improve the performance of your Synology device but also effectively prevent a range of potential issues caused by insufficient storage space, ensuring your Synology device remains in optimal condition to better serve your daily life and work.
In Synology DSM, we often encounter a problem: after downloading a movie via Download Station, even if we delete the file, the disk space is not freed up, causing the available storage space to gradually decrease.
In fact, downloaded files are originally stored in the /volume1/@download/ directory (assuming a single-disk environment; otherwise, there may be a volume2, etc.), and your shared folder may be set to 192.168.x.x/video (user-defined). If you set the download path to “video” in Download Station (visible to regular users), the files will still be stored in /volume1/@download/; a symbolic link is simply created in the “video” folder.
Linux uses a link mapping mechanism. The “shortcut” in the "video" folder points to /volume1/@download/. Even if you rename or delete files in the "video" folder, the original files in @download/ remain intact and can still be seeded normally.
The purpose of this tutorial isn't to have you modify Synology's internal files; it's simply to help you understand the underlying principles. As for how to prevent the system from failing to free up space after deleting files, I haven't figured out how to handle that yet.
First, you need to remove the download links from Download Station and delete the associated files (you can empty the Recycle Bin or simply ignore this step); this will automatically free up space. As mentioned earlier, if you only delete the video files without removing the download links, the system will still be able to upload the torrent via the original @download link, so no space will be freed up. We hope you understand.
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Why isn't the storage space immediately restored after deleting downloaded files?
Download Station may still retain download tasks, incomplete fragments, or temporary files; the Recycle Bin, snapshots, and version control in the shared folder will also continue to take up space. You should first determine which layer is using the space before deciding on a cleanup method.
Safe Cleaning Procedure
- In Download Station, pause and review the task, and delete the task and its associated data once you confirm it is no longer needed.
- Check the default download directory and the directory for incomplete tasks, and verify the filenames, sizes, and timestamps.
- Empty the Recycle Bin for the relevant shared folders.
- View trends for large files and storage space in the “Storage Space Analyzer” or on the DSM Storage page.
- If Snapshot Replication or version retention is enabled, check the snapshot policy.
Do not directly delete system directories you are unfamiliar with, and do not execute unverified batch cleanup commands via SSH. For important tasks, back up your torrents, configurations, and downloaded data first.
What should I do if the space still hasn't been freed up?
- Wait for the file system statistics to update, and then refresh the storage page.
- Check to see if any other packages are using the same shared folder.
- Check Btrfs snapshots, Synology Drive versions, and the Recycle Bin.
- Before restarting the package, make sure there are no ongoing verification, transfer, or download tasks.
Recommendations for Routine Maintenance
Create a separate shared folder specifically for temporary downloads, and set up storage capacity alerts and regular cleanup rules; once downloads are complete, promptly organize the files into your media library or archive directory to prevent temporary files from getting mixed in with your task list and production data.
Original article by Tech.laowang. If you wish to repost this article, please credit the source: https://techlaowang.com/en/download-station-download-station/
