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Difficulty: MediumHybrid and VMware Cloud on AWS Migrations

A company is planning to migrate its on-premises VMware vSphere workloads to a VMware Cloud on AWS Software-Defined Data Center (SDDC). The migration strategy must satisfy the following constraints:

* Live migration with zero downtime is required for a critical transactional database VM.
* A group of 50 non-critical application VMs must be migrated in parallel with a switchover scheduled during a weekend maintenance window to minimize service disruption.
* All replication traffic must traverse a secure, dedicated connection using the existing 1 Gbps AWS Direct Connect connection rather than the public internet.

Which two options should the Solutions Architect select to satisfy these migration requirements? (Select TWO.)

  1. Use VMware HCX vMotion to migrate the critical transactional database VM to achieve zero-downtime live migration.Answer
  2. Use VMware HCX Bulk Migration for the 50 application VMs to replicate them in parallel and perform a scheduled switchover.Answer
  3. C
    Use VMware HCX Cold Migration for both the database VM and the application VMs to guarantee data consistency during the transfer.
  4. D
    Configure the VMware HCX replication traffic to route directly through an AWS Direct Connect Gateway connected to a Transit Gateway VPC attachment without enabling Transit Connect, relying on the Direct Connect Gateway for transitive routing.
  5. E
    Associate the Route 53 Private Hosted Zone with the on-premises DNS servers only, without associating it with the VMware Cloud on AWS connected VPC.

Answer

Use VMware HCX vMotion to migrate the critical transactional database VM to achieve zero-downtime live migration, and use VMware HCX Bulk Migration for the 50 application VMs to replicate them in parallel and perform a scheduled switchover.
The correct options are to use VMware HCX vMotion for the critical transactional database VM to perform a live migration with zero downtime, and VMware HCX Bulk Migration for the 50 application VMs to allow parallel replication and a scheduled switchover. HCX vMotion migrates one VM at a time with zero downtime, which matches the single database requirement. HCX Bulk Migration replicates multiple VMs in bulk while powered on, and performs a brief switchover (with a reboot on the target side) which can be scheduled for a maintenance window.

Step-by-Step Solution

1
Analyze the downtime tolerance and concurrency requirements for each workload type.
The critical database VM requires zero downtime, suggesting a live migration mechanism like HCX vMotion. The 50 application VMs require parallel migration and a scheduled switchover, which is best supported by HCX Bulk Migration.
Matching workloads to the correct HCX migration profiles ensures RTO requirements are met.
2
Assess the routing and network requirements for migration replication traffic.
The replication traffic must run over the existing AWS Direct Connect connection. Ensuring proper routing paths using HCX without relying on unsupported Direct Connect Gateway transitive routing configurations is necessary.
This guarantees that network security and bandwidth constraints are maintained during data transfer.

Key Concept

Selecting appropriate VMware HCX migration methods based on application RTO, downtime tolerance, and scale constraints.
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Topics

Hybrid and VMware Cloud on AWS Migrations

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