VM Migrations

Application Discovery Services

  • Plan migration projects by gethering information about on-premise data centers

  • Server utilization data and dependency mapping are important for migrations

  • Types of discovery:

    • Agentless discovery (Agentless Connector)

      • Open Virtual Appliance (OVA) package that be deployed to a VMware host

      • VM inventory, configuration and performance history such as CPU, memory, and disk usage

      • OS agnostic

    • Agent based discovery

      • System configuration, system perofrmance, running processes and details of the network conncections between systems

      • Supports Microsoft Server, Amazon Linux, Ubuntu, RedHat, CentOS, SUSE, etc.

  • Resulting data can be exported as CSV or viewed within AWS Migration Hub

  • Data can be explored using pre-defined queries in Amazon Athena

AWS Server Migration Service (SMS)

  • An imporvement over EC2 VM Import / Export service. (Re-host level)

  • Works with: VMware vSphere, Windows Hyper-V, Azure VM

    • Install the Server Migration Connector to your on-premises virtualization environment.

    • If there's only backup image but not having a VMware system, use VM Import instead (upload the image to S3 and create the AMI for servers).

  • After loading the VM onto EC2, then you can update OS and make an AMI

  • Every replication creates an EBS snapshot / AMI ready for deployment on EC2

  • Every replication is increamental

  • Option for "one time migrations" or "replication for an interval"

VMware Cloud

  • Can run Oracle RAC in multiple AZs. Oracle RAC doesn't run natively on EC2.

  • Can connect the application servers to database with VMware Cloud ENI route table entries.

Overview for on-premise strategy with AWS

  • Ability to download Amazon Linux 2 AMI as a VM (.iso format)

    • VMWare, KVM, VirtualBox (Oracle VM), Microsoft Hypver-V

  • AWS Application Discovery

    • Gather information about on-premise servers to plan a migration

    • Server utilization and dependency mappings

    • Track with AWS Migration Hub

  • AWS VM Import / Export

    • Migrate existing applications into EC2

    • Create a DR repository strategy for your on-premise VMs

    • Can export back the VMs from EC2 to on-premise

  • AWS Server Migration Service (SMS)

    • Incremental replication of on-premise live servers to AWS

    • Migrate the entire VM into AWS

  • AWS Database Migration Service (DMS)

    • Replicates:

      • on-premise to AWS

      • AWS to AWS

      • AWS to on-premise

    • Works with various DBs

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