Commvault provides robust encryption and key management solutions to safeguard data during integration with multiple cloud storage providers. By implementing encryption and managing access keys securely, organizations can ensure data privacy and compliance with regulatory requirements.

Commvault employs techniques like incremental backups and global deduplication to minimize the amount of data transferred during backups, thus reducing resource consumption. This approach is more efficient than full backups and ensures that only changed data is backed up, saving both time and storage space. While other options may improve performance, they don't directly address resource utilization.

Granular recovery options enable restoration at the file-level for precise recovery. This means that individual files or data elements can be recovered without restoring entire systems or volumes, offering flexibility, efficiency, and reducing the impact of data loss on operations.

The organization can configure the backup policy using the Grandfather-Father-Son (GFS) strategy, which retains monthly backups for a long-term period, aligning with the requirement of seven years retention. GFS ensures efficient management of backups over time.

Capacity planning is vital in data management as it optimizes storage utilization, ensuring that resources are efficiently used. It helps in maintaining data availability, especially during peak usage times, by allocating resources effectively. This process also aids in reducing data redundancy and improving overall data security.

Virtualization impacts Capacity Planning strategies by improving resource utilization and flexibility. It allows for better allocation of resources and reduces the need for physical hardware, leading to cost savings and operational efficiencies. However, organizations must also address challenges such as increased complexity and management overhead associated with virtualized environments. Overall, virtualization offers significant benefits but requires careful planning and management.

The choice between full, incremental, and differential backups directly impacts storage requirements. Full backups consume more storage space upfront but offer complete data recovery. Differential backups require less space than full but more than incremental backups.

Data masking is used to hide or obfuscate sensitive information such as credit card numbers, social security numbers, bank account numbers, and other personally identifiable information (PII) to prevent unauthorized access or data breaches. It ensures that sensitive data remains protected while still allowing legitimate users to access and work with the data.

Commvault's deduplication and compression mechanisms are most suitable for handling redundant and repetitive data types. These data sets typically contain duplicate blocks that can be efficiently deduplicated and compressed, resulting in significant storage savings and improved data management.

Commvault's data deduplication and compression techniques reduce storage space utilization, making backups more efficient without compromising data integrity.