The direct risk of having Veeam Backup & Replication on the production domain is that a compromised Domain Admin could gain access to the backup server and its data. This could pose a serious security threat to the backup infrastructure and the customer data, as a malicious Domain Admin could delete, modify, or encrypt the backups, or restore them to a compromised environment. Therefore, it is recommended to isolate the backup server from the production domain and use a separate local administrator account for managing it.

The recommended method to replicate VMware virtual machines with a less than five-minute RPO is Veeam Continuous Data Protection (CDP). CDP is a feature that allows near-continuous replication of VMware virtual machines to a secondary site or cluster with minimal data loss and downtime. CDP uses VMware vSphere APIs for I/O Filtering (VAIO) to capture every write operation from the source VMs and send them to the target VMs in near real-time. CDP can achieve RPOs as low as seconds and enable fast failover and failback in case of a disaster.

A possible cause of failures to meet the requirement to test gold tier backups is that you cannot firewall traffic between vLANs in the SureBackup job configuration. This could prevent the gold tier virtual machines from communicating with each other or with other required services in the isolated virtual lab. For example, if a gold tier virtual machine needs to access a database server or a domain controller in another vLAN, it might fail to start or function properly in the SureBackup job. Therefore, it is important to ensure that all necessary vLANs and network settings are configured correctly in the SureBackup job.

The component that should be deployed based on the customer's security requirements around restore capabilities is Enterprise Manager with granular RBAC policies defined. Enterprise Manager is a web-based interface that allows centralized management of multiple Veeam backup servers. It also provides granular RBAC policies that enable control over user permissions and access to restore data. For example, you can assign different roles to different users or groups based on their responsibilities and needs, such as backup administrator, restore operator, security officer, etc. You can also define custom scopes and rules for each role to limit their access to specific objects, jobs, or actions.

The method that can be used to validate that the design meets target SLAs and does not exceed repository growth projections is to ensure job throughput matches extensions and cross-compare with available network throughput, disk speed and initial sizing calculations. Job throughput is the measure of how much data is processed and transferred by a backup job per unit of time. Job throughput can be affected by various factors such as network bandwidth, disk performance, compression, deduplication, encryption, etc. By ensuring job throughput matches extensions, you can verify that your backup jobs are running as expected and meeting the SLAs. By cross-comparing job throughput with available network throughput, disk speed and initial sizing calculations, you can identify any bottlenecks or discrepancies that might affect your backup performance or storage consumption.