Dear experts,
Our data backup failed with error:
[447] backup could not be completed, [1000002] Allocation failed ; $size$=536870912; $name$=ChannelUtils::copy; $type$=pool;

I checked /hana/data still have 1.1TB space

data_backup_buffer_size is 512MB

Thank you.
Regards,
Fadzly Iqbal