Migrating Azure data lake Gen1 to Gen2
Before Gen2, only option to store the archival data was in blob storage because of this low pricing. Gen2 is built on top of blob storage and hence the cost of storing in Gen2 is very cheap.
gen2 is the combination of blob storage and ADLS. Microsoft combined blob storage and ADLS gen 1 into one platform to come up with ADLS gen2.
Please see the video below to understand the migration details.