Veeam Backup & Replication is a comprehensive solution for data protection across various environments, including cloud, virtual, and physical systems.

• Backup Server - The central management component, installed on a Windows-based machine or VM.
• Backup Proxy - Handles data processing and transfer, optimizing backup performance.
• Backup Repository - Storage location for backup files, supporting various repository types.

• Backup & Replication Console - Client-side interface for managing backup operations.
• Veeam Data Movers - Responsible for data retrieval, deduplication, compression, and storage.
• Gateway Server - Bridges the backup server and repository, required for certain storage types.
• Mount Server - Facilitates restores involving guest OS files and application items.

• .VBM - Metadata file for backup management.
• .VBK - Full backup file (active or synthetic).
• .VIB - Incremental backup file.

• VMware Proxy - Default role on the backup server, can be installed on other Windows/Linux servers.
• General Purpose Proxy - Used for NAS, file shares, and physical server backups.
• Hyper-V Off-Host Proxy - Reduces load on production Hyper-V hosts by handling backup operations separately.

For more details, visit the [Veeam Community Resource Hub](https://community.veeam.com/onboarding-for-veeam-data-platform-163/onboarding-for-veeam-data-platform-step-2-1-veeam-components-and-infrastructure-requirements-10012).

Veeam Backup & Replication supports various storage options and transport methods to optimize data protection and recovery.

• DAS (Direct Attached Storage) - Includes USB, eSATA, and raw device mapping (RDM).
• Linux Hardened Repository - Provides immutability and security against ransomware and insider threats.
• Object Storage - Supports AWS S3, Azure Blob, IBM Cloud, and S3-compatible storage.
• SAN (Storage Area Network) - Enables direct access via hardware, HBA, or iSCSI initiators.
• SMB/NFS - Supports SMB 3.0+ and NFS shares with proper permissions.
• Tape - Fully integrated native tape support for long-term storage.
• Deduplication Appliances - Hardware-based storage optimization with built-in deduplication and compression.
• External Repositories - Read-only repositories for cloud-to-on-premises data migration.

• Direct Storage Access - Provides the highest performance by accessing storage directly.
• Virtual Appliance (HotAdd) - Uses VMware SCSI HotAdd for efficient datastore access.
• Network Mode (NBD/NBDSSL) - Transfers data over TCP/IP, offering broad compatibility.
• Backup from Storage Snapshots - Reduces impact on production environments by leveraging storage snapshots.

The vPower NFS Service is a Microsoft Windows service that runs on a Microsoft Windows machine and enables this machine to act as an NFS server.

• SureBackup - Verifies backup integrity.
• SureReplica - Ensures replica reliability.
• Instant Recovery - Enables rapid VM recovery.
• Staged Restore - Facilitates compliance-driven restores.
• Universal Application-Item Recovery (U-AIR) - Allows granular application recovery.
• Multi-OS Guest OS File Restore - Supports file-level recovery across different operating systems.

For more details, visit the [Veeam Community Resource Hub](https://community.veeam.com/onboarding-for-veeam-data-platform-163/onboarding-for-veeam-data-platform-step-2-2-backup-repositories-and-transport-modes-10013).