Add Backup/Restore for DiskS3 Metadata Files

Why it matters

This feature addresses the need to safeguard metadata associated with files stored on DiskS3. By enabling backup and restoration of metadata files, it ensures data integrity and simplifies recovery processes in case of accidental data loss or system failures.

How to use it

Users can now perform backup and restore operations on metadata files for DiskS3 just like with other supported disk types. The functionality integrates with existing backup tools and commands for disks configured with the DiskS3 storage type.