Taking up too much storage

Hi,
I’m backing up a folder of 38 ‘.tar.zst’ zips and the rest are xml files, about 60gb worth in total into onedrive. I run prune after backup to only keep 3 days worth of backups.
However, as you can see in the image, it’s taking up a terabyte! Surely it should only be taking up about 180gb? I don’t understand why it’s taking up so much space. Help would be appreciated

It looks like your unraid backup is stable in size. (Backing up zip files is a bad idea, Duplicacy can’t defuplicate them. You can just copy them directly instead).

But there is something else growing.

Perhaps your prune started failing? Review the prune logs, and try running -exhaustive prune.

Ah yeah, taken a look at the logs and found this for the prune;

2024-02-21 06:35:10.977 INFO CHUNK_DELETE The chunk 8c2b6ae6a6dba998967ecb54db28d77ff1a41155bc6c1027a209eceb905c206c has been permanently removed
2024-02-21 06:35:10.977 INFO SNAPSHOT_DELETE Deleting snapshot unraid at revision 16
2024-02-21 06:35:11.016 INFO CHUNK_DELETE The chunk 10852815f42561dd4a44abad373efa25fad91a1d035e074e87aaf67cb83f7524 has been permanently removed
2024-02-21 06:35:11.103 INFO CHUNK_DELETE The chunk 75b74f014165244c6afe29f536528d8f5b7877d104869569a2a6637b9132e10b has been permanently removed
2024-02-21 06:35:11.106 INFO CHUNK_DELETE The chunk 6e76146aa79f0cdc238566e57d926f6542053f78db87b1c76b815d72afd3c924 has been permanently removed
2024-02-21 06:35:11.118 INFO CHUNK_DELETE The chunk f03f295aa689478fc51bdf9fec8f50abbf4a167afa019bad53c8fc8caa927a41 has been permanently removed
2024-02-21 06:35:11.138 INFO CHUNK_DELETE The chunk 45a04d5e6f86a68b415154f8e1327bbecbf0201fcf1740a8b53ec492f6e99713 has been permanently removed
2024-02-21 06:35:11.142 INFO CHUNK_DELETE The chunk 6e131647331a0689bfcebed7d692b4c1648bc95fa9d89f1bad2a9c6ba6ff58d7 has been permanently removed
2024-02-21 06:35:11.142 INFO CHUNK_DELETE The chunk 6839ce192070ef920674f56122f8bcc1d2fd9c93f1935b7eae96fd6355b0a141 has been permanently removed
2024-02-21 06:35:11.157 INFO CHUNK_DELETE The chunk ad67eeaebbadfb0c2fd27358d92510996fc335a32c53294dda4e84356c0e2438 has been permanently removed
2024-02-21 06:35:11.219 INFO CHUNK_DELETE The chunk 1af3be387788168c5c3755dd73dcb9e09458229d477af5c1517011a9261dc740 has been permanently removed
2024-02-21 06:35:11.264 INFO CHUNK_DELETE The chunk 5bc29db8eb85eb63013c7c3d815b2c935894af122c4ce38a89be159603da80a8 has been permanently removed
2024-02-21 06:35:11.270 INFO CHUNK_DELETE The chunk a757408940ce034ba8964f3e80d4fcf2f7121965a23507bed65e5b220ad4ea2e has been permanently removed
2024-02-21 06:35:11.301 INFO CHUNK_DELETE The chunk 1ee0db35cd38ec2edf65e75ba707238f0cce4b6c68821f67e76279bc1b9936da has been permanently removed
2024-02-21 06:35:11.307 INFO CHUNK_DELETE The chunk b13c059c65d1acdc9d15874789444e504b81753b3d8a6987a9920af652a204dc has been permanently removed
2024-02-21 06:35:11.315 INFO CHUNK_DELETE The chunk fcfab2c481ee58ed51716b427a4f0db277e724635732fb826a94ccecca91fae5 has been permanently removed
2024-02-21 06:35:11.358 INFO CHUNK_DELETE The chunk 5101375076a7d042d060dd0a027e6e947eac530635a834a62200dd1b9c45d46b has been permanently removed
2024-02-21 06:35:11.359 INFO CHUNK_DELETE The chunk 3930a262fd68b8cd19caa58545cc8603fccdefc25e274a32bf52678e8431f5e7 has been permanently removed
2024-02-21 06:38:46.539 INFO ONEDRIVE_RETRY Response code: 502; retry after 740 milliseconds
2024-02-21 06:38:47.007 INFO ONEDRIVE_RETRY Response code: 502; retry after 946 milliseconds
2024-02-21 06:38:47.412 INFO ONEDRIVE_RETRY Response code: 502; retry after 785 milliseconds
2024-02-21 06:39:13.237 INFO ONEDRIVE_RETRY Response code: 502; retry after 847 milliseconds
2024-02-21 07:02:00.780 INFO FOSSIL_COLLECT Fossil collection 16 saved
2024-02-21 07:02:01.054 INFO SNAPSHOT_DELETE The snapshot unraid at revision 16 has been removed

I’ve added -threads 1 & -exhaustive on prune to see if that stops onedrive timing out.