Migrations Flashcards
What is AWS Application Discovery Service?
AWS Application Discovery Service helps you plan your migration to the AWS cloud by collecting usage and configuration data about your on-premises servers. Application Discovery Service is integrated with AWS Migration Hub, which simplifies your migration tracking as it aggregates your migration status information into a single console. You can view the discovered servers, group them into applications, and then track the migration status of each application from the Migration Hub console in your home region.
Where is Application Discovery Service data stored?
In your AWS Migration Hub home region
Where can Application Discovery Service data be exported to?
Microsoft Excel or AWS analysis tools such as Amazon Athena and Amazon QuickSight
How can Application Discovery Service perform discovery and collecting of data about on-prem servers?
Agentless discovery can be performed by deploying the AWS Agentless Discovery Connector (OVA file) through your VMware vCenter. After the Discovery Connector is configured, it identifies virtual machines (VMs) and hosts associated with vCenter. The Discovery Connector collects the following static configuration data: Server hostnames, IP addresses, MAC addresses, disk resource allocations. Additionally, it collects the utilization data for each VM and computes average and peak utilization for metrics such as CPU, RAM, and Disk I/O.
Agent-based discovery can be performed by deploying the AWS Application Discovery Agent on each of your VMs and physical servers. The agent installer is available for Windows and Linux operating systems. It collects static configuration data, detailed time-series system-performance information, inbound and outbound network connections, and processes that are running.
Which Application Discovery Service tool collects detailed metrics?
The Discovery Agent collects Time series performance information, Network inbound/outbound connections, and Running processes as opposed to the Connector which only does static config data (CPU, RAM, Disk I/O, and VM util metrics
How often does the agent start collecting data for the host or VM?
The agent pings the Application Discovery Service at 15-minute intervals for configuration information.
Are Discovery Agents secure?
Yes, data is transmitted using TLS and agents upgrade automatically by default.
Can you import data into Migration Hub without using the Connector or Agent?
Migration Hub import allows you to import details of your on-premises environment directly into Migration Hub without using the Discovery Connector or Discovery Agent, so you can perform migration assessment and planning directly from your imported data.
What is AWS Server Migration Service (SMS)?
AWS SMS currently supports the migration of on-premises virtual machines (VMs) as an agentless service using a virtual appliance.
What are the benefits of AWS Server Migration Service (SMS)?
- Automates an incremental replication of live server volumes to AWS reducing server downtime at cutover.
- Orchestrates large-scale server migrations in a cost effective manner.
- Supports most widely used operating systems.
- Manages and tracks the progress of your server migration through an easy to use UI.
When is Server Migration Service ideal?
AWS SMS is an ideal solution to use when you are planning a scaled migration from VMware environments to AWS where the downtime, agentless tools, incremental replication, and testing the application before the cutover are critical considerations.
What is the migration process when using AWS SMS?
- Schedule the migration job (immediately or date)
- Upload (take a snapshot, export VM to OVF, upload VMDK to S3, clean snapshot)
- Convert (Convert VMDK to EBS snapshot, delete VMDK file from S3)
- Create an AMI
How does SMS migrate applications with multiple servers?
AWS Server Migration Service supports the automated migration of multi-server application stacks from your on-premises data center to Amazon EC2. Where server migration is accomplished by replicating a single server as an Amazon Machine Image (AMI), application migration replicates all of the servers in an application as AMIs and generates an AWS CloudFormation template to launch them in a coordinated fashion.
Applications can be further subdivided into groups that allow you to launch tiers of servers in a defined order.
What is homogeneous db migration?
When we migrate between the same type of databases.
