Hello,
Azure object storage charges you based on the actual data stored, not by rounding up to fixed block sizes like 4MB. So if you send a 1MB block, you're only charged for 1MB - there's no "wasted" space in that sense.
That said, using smaller blocks does mean more objects get created, which will increase the number of transactions (during uploads and maintenance). Larger blocks reduce the transaction count, but might not be as efficient for incremental backups, since even a small delta will trigger the read of a full 4MB block.
For Veeam Vault, the recommended 1MB block size is offered based on an optimal balance between object size and backup chain efficiency.
Hope that helps!
Azure object storage charges you based on the actual data stored, not by rounding up to fixed block sizes like 4MB. So if you send a 1MB block, you're only charged for 1MB - there's no "wasted" space in that sense.
That said, using smaller blocks does mean more objects get created, which will increase the number of transactions (during uploads and maintenance). Larger blocks reduce the transaction count, but might not be as efficient for incremental backups, since even a small delta will trigger the read of a full 4MB block.
For Veeam Vault, the recommended 1MB block size is offered based on an optimal balance between object size and backup chain efficiency.
Hope that helps!
Statistics: Posted by KirillChuxlancev — Jun 16, 2025 4:57 pm
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