Cloud Cache (CCD): Prior to Cloud Cache (CCD) storage for FSLogix was in one SMB location per container type, (though they can be both in the same share with no naming collision by default).
The reason for separate shares is that the Profile containers need better performance and backup. The Office container doesn’t need to be backed up since it can be automatically recreated from Exchange mailboxes and OneDrive locations (so, it can be stored on cheaper storage but doesn’t have to be).
Now with Cloud Cache (CCD) it can be stored in multiple locations for backup and high availability requirements (2 locations is typical, each additional location causes more overhead and slower performance). They can be SMB or AzurePageBlob locations.
Best Regards
Karlie
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