3279754 - Starting serial FILE backup in 1 chunks flood in trace but no disk full event

There are massive Starting serial FILE backup in 1 chunks errors occur repeatedly in the HANA DB traces.
"SAP Note#2962726 - HANA DB generating many catalog backup files" point to large catalog backup size or disk full events, which is not the case in this special case.
Also a housekeeping does not change this behavior.

[56380]{-1}[-1/-1] 2022-09-30 14:53:11.064187 i Backup           BackupExecutor.cpp(00549) : Starting serial FILE backup in 1 chunks. 1.: Backup of BackupSource: [CATALOG] Version 1 @ 0x00007f539959a300 into BackupDestination: [FILE][/usr/sap/HFD/HDB00/backup/log/DB_SFD/log_backup_0_0_0_0.1664520791062], max size 18446744073709551615, version 10 @ 0x00007f538e558300, channel="<root>/.log_backup_0_0_0_0.1664520791062" ((open, mode= W, access= rw-r-----, flags= ASYNC|DIRECT|TRUNCATE|UNALIGNED_SIZE), factory= (root= "/usr/sap/HFD/HDB00/backup/log/DB_SFD/" (access= rw-r-----, flags= AUTOCREATE_PATH|DISKFULL_ERROR, usage= CATALOG_BACKUP, fs= xfs, config= (async_write_submit_active=on,async_write_submit_blocks=all,async_read_submit=on,num_submit_queues=1,num_completion_queues=1,size_kernel_io_queue=512,max_parallel_io_requests=64,min_submit_batch_size=16,max_submit_batch_size=64)), callback=0x00007f539b593700

SAP HANA DB Version 2.0

KBA , HAN-DB-BAC , SAP HANA Backup & Recovery , Problem