How do you split a level into 2 pak/chunks files?

[OverRated_AU]

With 5.2 and switching to world partition its increased my levels size and it will no longer fit into the 4GB pak file sizes I have set, it fits into a 9gb but asks for 13gb in the error, is there anyway I can split the level into 2 paks and keep my 4gb pack size settings?

[Sarlack]

Is the level (.umap) the large file size or is it the assets that are in the level?
If it is the assets, you can use DataAsset files to split which chunk they will pak into.

By default all assets go into ChunkID 0.
You can create a DataAsset in a root folder and set to a different ChunkID and all assets in that folder and sub folders will pak to that ChunkID.

In the DataAsset file is where you set the ChunkID.

Here are my ProjectSettings.

These are the pak files in the content folder of a packaged game.

[OverRated_AU]

Hi Sarlack, Thanks for the reply its a Level so yeah the UMap.

This is the error I’m getting below, I want to be able to fit the Level into smaller pak files, it was able to be packed into 4gb files using world comp on 5.1, even without the HLOD for the level its still giving me this same error.

UATHelper: Packaging (Windows): LogAssetRegistryGenerator: Error: Failed to add file H:/Workspaces/IHS/UE5/Game/Saved/Cooked/Windows/Game/Content/Game/Maps/Halo_Island/Halo_Island to paklist 'H:/Workspaces/IHS/UE5/Game/Saved/TmpPackaging/Windows/pakchunk3.txt'. The maximum size for a Pakfile is 4294 MB, but the file to add is 13788 MB.
UATHelper: Packaging (Windows): LogCook: Warning: Failed to save chunk manifest
PackagingResults: Error: Failed to add file H:/Workspaces/IHS/UE5/Game/Saved/Cooked/Windows/Game/Content/Game/Maps/Halo_Island/Helo_Island to paklist 'H:/Workspaces/IHS/UE5/Game/Saved/TmpPackaging/Windows/pakchunk3.txt'. The maximum size for a Pakfile is 4294 MB, but the file to add is 13788 MB.

[Sarlack]

13gb, wow that’s a big umap file size. It can’t split one file into pieces that I know of.
Was the same umap less than 4gb in 5.1 or was it splitting it up?
Is there a reason you need to set the max pak size to be 4gb?
I guess you will have to turn off the max pak file size and let it put it all in one big pak.

Curious, I wonder how the umap file got so large?
The largest umap I have is about 400mb, but it’s really not super big, not like a GTA5 size map.
I looked the the CitySample maps and they are tiny file sizes even though it is a large level.
I cant open the City project right now because it would need to compile everything, but I wonder how they are using world partition and level streaming to get the umap size so small.

[OverRated_AU]

The map its self is small its packing HLODs and all the assets used on it into the same pak file, I haven’t found a way yet to split the assets from the map, creating a DataAsset in a few folders shows that it splits them into different paks in the asset audit but it doesn’t seem to do it.

I try to keep the pak sizes small as to keep updates smaller and faster on steam, large pak files take longer to patch.

Yeah its strange it did fit in 5.1 into 4gb files even without the HLODs it still fails asking for the same size, when i change the size to 14gb the pak size of the map is only 8gb after packaging but it fails if I set it to even 10, thanks for the help.

[OverRated_AU]

Ill leave the answer here in-case someone gets this same issue, the issue had nothing to do with my packaging settings it was related to a bug in 5.2 when it converted the level from world comp to world partition, what i ended up doing was back dating converting the level on 5.1 then updating to 5.2 now my project is able to package like normal, one thing i did notice was 5.2 took a lot longer to convert the level than 5.1 did, I didn’t try converting it on 5.2 again so take this with a pinch of salt.