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4.1.2. Data Storage with Azure Data Lake Gen2
š” First Principle: Data Lake Gen2 combines the scalability of Blob Storage with the file-system semantics (directories, permissions) needed for analytics workloads.
Key Feature: Hierarchical Namespace
Without hierarchical namespace (Blob): Renaming a "folder" requires renaming every blob with that prefix (slow, expensive). With hierarchical namespace (Data Lake Gen2): Renaming a folder is a single atomic operation (fast, cheap).
Visual: Data Lake Zone Architecture
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