Re: backup_calculate_cluster_size does not consider source

[Max Reitz]

On 06.11.19 12:18, Dietmar Maurer wrote:
>> And if it issues a smaller request, there is no way for a guest device
>> to tell it “OK, here’s your data, but note we have a whole 4 MB chunk
>> around it, maybe you’d like to take that as well...?”
>>
>> I understand wanting to increase the backup buffer size, but I don’t
>> quite understand why we’d want it to increase to the source cluster size
>> when the guest also has no idea what the source cluster size is.
> 
> Because it is more efficent.

For rbd.

Max

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