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Zorluk: ZorHybrid and VMware Cloud on AWS Migrations

An enterprise is planning to migrate its on-premises VMware vSphere environment to VMware Cloud (VMC) on AWS. The migration scope includes 5050 virtual machines (VMs) running multi-tier applications, including a critical Oracle database VM that requires zero replication-induced downtime during the cutover. The on-premises data center is connected to AWS via a 10 Gbps10\text{ Gbps} AWS Direct Connect connection terminated on a Direct Connect Gateway (DXGW).

Additionally, the architecture requires:
- Transitive routing between the VMC on AWS Software-Defined Data Center (SDDC), the on-premises environment, and multiple spoke VPCs across different AWS accounts.
- Resolution of the private domain `corp.internal` hosted in a Route 53 Private Hosted Zone (PHZ) in a shared-services VPC.

Which TWO actions should the Solutions Architect take to migrate these workloads and configure the network connectivity?

  1. Use VMware HCX Replication-Assisted vMotion (RAV) to migrate the Oracle database VM and other application workloads to enable parallel replication with a zero-downtime hot switchover.Cevap
  2. Deploy VMware Cloud (VMC) Transit Connect to connect the SDDC to an AWS Transit Gateway, and associate the Direct Connect Gateway with the Transit Connect to enable transitive routing between the SDDC, spoke VPCs, and the on-premises environment.Cevap
  3. C
    Use VMware HCX Bulk Migration to replicate all 5050 VMs in parallel, scheduling the database VM switchover to occur during a brief maintenance window.
  4. D
    Attach the Direct Connect Gateway directly to the Virtual Private Gateways (VGWs) of both the VMC on AWS SDDC and the spoke VPCs to allow direct transitive routing.
  5. E
    Associate the Route 53 Private Hosted Zone `corp.internal` directly with the VMC on AWS management VPC from the shared-services AWS account, relying on automated Route 53 propagation across Transit Gateway.

Cevap

To migrate the workloads with zero-downtime switchover and configure transitive routing, the Solutions Architect should use VMware HCX Replication-Assisted vMotion (RAV) for the migration, and deploy VMware Cloud Transit Connect to connect the SDDC to the AWS Transit Gateway while associating the Direct Connect Gateway with the Transit Connect.
Using VMware HCX Replication-Assisted vMotion (RAV) allows the parallel replication of multiple virtual machines while executing a live, zero-downtime switchover (vMotion) for the database and application workloads, satisfying the zero replication-induced downtime requirement. Furthermore, deploying VMware Cloud Transit Connect (VTGW) and associating the Direct Connect Gateway with it enables transitive routing between the VMware Cloud on AWS SDDC, on-premises data center, and the spoke VPCs, satisfying the hybrid connectivity and routing requirements.

Adım Adım Çözüm

1
Evaluate the downtime requirements for the migration phase.
Identify that the Oracle database requires zero replication-induced downtime, which rules out HCX Bulk Migration.
HCX Bulk Migration forces a VM reboot during switchover, whereas HCX Replication-Assisted vMotion (RAV) enables parallel bulk replication combined with a zero-downtime live vMotion switchover.
2
Determine the network routing architecture required for transitive routing.
Select VMware Cloud Transit Connect to connect the SDDC and customer spoke VPCs, and associate the Direct Connect Gateway with it.
Direct Connect Gateway alone does not support transitive VPC-to-VPC or VPC-to-VMC routing when attached directly to Virtual Private Gateways. Transit Connect (VTGW) resolves this by acting as a hub that supports transitive routing.
3
Identify and exclude invalid DNS and routing configuration options.
Eliminate options suggesting direct Private Hosted Zone association with the VMC management VPC, or direct DXGW-to-VGW transitive routing.
These violate AWS networking rules and limitations regarding cross-account resource ownership and routing transit limits.

Anahtar Kavram

VMware Cloud on AWS hybrid migration using HCX RAV and hybrid network routing with Transit Connect and Direct Connect Gateway.
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