< All CompTIA Cloud+ Notes

tsirhCdneM | CompTIA Cloud+ | Module 6

By: Raul Pop | Related Course: CompTIA Cloud+ | Published: June 12, 2017 | Modified: June 12, 2017
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NotepadVirtualization

Benefits of Virtualization

Migrations

Migration Considerations

 

Benefits of Virtualization

 

Shared Resources

The cloud provider can provide resources as needed to the customer

Sharing resources over the cloud provides better efficiency while reducing costs

 

Elasticity

Term used to give the customer resources loosely

A resource pooling is provided that serves multiple cloud customer

Gives the customer what they need when they need

Cost savings ability

 

Isolation

Separate resources

Separates traffic to a particular network

Applications isolation is used to separate the program so that it can operate separately

 

Infrastructure Consolidation

Consolidating many virtual computers on a single host

Uses less power and fewer administrative functions

Allows a company to use less hardware which reduces costs

 

 

Migrations

 

Templates

Baselines of a computer or computer’s resources to start a VM

 

Virtual to Virtual(V2V)

Migrates a virutal server to a virtual server

The OS data and programs are migrated to new VMs

Can be automated

 

Physical to Virtual(P2V)

Migrates a physical server to a virtual server

The OS data and programs are migrated to the new VMs

 

Virtual to Physical (V2P)

Migrates a virtual server to a physical server

The OS data and programs are migrated to the new physical server

Requires special tools to migrate

Mainly used for testing

Some application cannot perform on VM,V2P relevates this

 

VM Cloning

Create copies of VM

Used to make copies of a machine

Clones can be identical allowing many copies of the same machine

 

Migration Considerations

Upgrading

Host OS will need to be upgraded

Guest tools

VM of Hyper-V might need upgrade

 

Requirements

Research OS before moving VM

Monitor machine before migration begin

Clean the system up before migration

 

Maintenance

Plain maintenance before migration

Have downtime before migration

Have a plain to migrate milestones

 

Testing

Perform test before and after the VM migration is performed

Network settings and configuration should be tested

Backups need to be tested before and after the migration

Reboot the VM and server several times


< All CompTIA Cloud+ Notes
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