Hi,

yes, you are right. When using a public cloud storage service, always 
incremental is probably not suitable.

However, when running object storage on premises, for example a ceph cluster 
providing S3 compatible storage,
it still may be suitable.

Regards,
Stephan

On 4/1/23 16:53, Tang Steven wrote:
Hi,

 From my understanding, the consolidation job in an always incremental backup 
will need to copy all old data and write it into new (or already purged) 
consolidation volumes. This is great for file-volume based backups because 
copying volumes locally is cheap.

However, for object storage backend, this "copy" means that the consolidation 
job will need to download old volumes first and re-upload new volumes to the object 
storage bucket. This will not only increase network transfers but also incurring data 
retrieval fees.

Therefore, an always incremental backup job may not be suitable for object 
storage back-ends.

Are my understandings  correct!

Best,
Steven Tang

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