JellyFin prevent HDD hibernation on Synology NAS

[Horo86]

I'm running JellyFin on a Synology NAS (DS923+), but it prevent HDD Hibernation even if nobody is connected to JellyFin or watching anything from it. I've tried to stop the JellyFin container, and the HDD Hibernation then is working again, so I'm sure that is JellyFin that prevents the hibernation.

Is there any settings I can use to let HDD to HDD hibernate?

The NAS sits unused mos of the time, so I prefer to save some energy stopping the disks



Thanks!

[TheDreadPirate]

Do you have real time monitoring enabled?

[Horo86]

Do you have real time monitoring enabled?

I've three libraries configured, and I've disabled the option "enable real time monitoring" for each one of them.

Then on "Scheduled Tasks" the task called "Scan Media Library" is set to run every 12 hours.

[TheDreadPirate]

If that is the case, I don't believe there is a way to force the HDDs to hibernate while JF runs. But we're talking about 1-3w per drive.

[tkrejci]

I'm facing exactly the same issue. The Jellyfin log is full of entries like:
[2024-11-29 08:21:27.817 +00:00] [INF] [34] Emby.Server.Implementations.ScheduledTasks.TaskManager: "Prohledat knihovnu médií" Completed after 0 minute(s) and 12 seconds
[2024-11-29 08:22:03.218 +00:00] [INF] [102] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[2024-11-29 08:25:39.217 +00:00] [INF] [115] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[2024-11-29 08:28:27.217 +00:00] [INF] [70] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[2024-11-29 08:31:15.218 +00:00] [INF] [35] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[2024-11-29 08:34:03.219 +00:00] [INF] [100] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.
[2024-11-29 08:37:39.218 +00:00] [INF] [96] Emby.Server.Implementations.Session.SessionWebSocketListener: Sending ForceKeepAlive message to 1 inactive WebSockets.

I have the suspicion that logging is the thing making the HDDs alive and prevents theirs hybernation.