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Snapmirror destination volume allocated/used space questions

f_duranti
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Hi, I've some strange (in my opinion) behaviour on the allocated space on snapmirrored volume on secondary storage.

I've some volume replicated from a primary to a secondary storage and I was expecting that the allocated space on the snapmirrored volume (with guarantee=none) was about the same as the source used space.

The source volume have guarantee=file, I've changed one to guarantee=none (to have the same setting on source/destination) and I've done a Snapmirror update but nothing changed.

This is the situation:

Source:

VolumeAllocatedUsedGuarantee
DPI_Data                        210GB       209GB        none
DPI_Exe                          52GB        51GB        file
DPI_Log                        1017MB       968MB        file
DPI_Temp                         65MB      4248KB        file

Destination:

VolumeAllocatedUsedGuarantee
DPI_Data_BK                     277GB       209GB        none
DPI_Exe_BK                      119GB        51GB        none
DPI_Log_BK                       69GB       912MB        none
DPI_Temp_BK                      68GB      4740KB        none

As you can see the first 2 are 210/52 GB allocated on the source and 277/119 allocated on the destination. It seems a bit strange ...

There's anything I can check?

The Data Ontap version is 7.3.6P2.

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