Worked on the canonical/lxd repository to improve the accuracy and maintainability of LVM thin-pool storage usage calculations in Go-based backend systems. Addressed a bug where metadata was previously overcounted by ensuring that metadata_percent was applied to lv_metadata_size rather than the data logical volume, and redefined totalSize as the sum of dataSize and metadataSize. This correction enables more precise storage usage reporting, supporting correct quota enforcement and billing integrity. Enhanced the clarity and readability of the storage driver logic by explicitly distinguishing between data and metadata sizes, demonstrating a methodical approach to backend development and code maintainability in Go.