Amazon EC2 AWS Management Console – Volumes and snapshots
By Michael Pietroforte | No Comments | PermalinkIn the last article in my review of Amazon’s AWS Management Console, I described how an Instance (virtual machine) has to be configured before it can be launched. Today, I will discuss EC2 volumes (virtual disks) and volume snapshots.
EC2 volumes
One of the features I like most about virtualization is that new virtual disks can be added so easily. If you are working in the cloud this is even more fun. The difference between cloud computing and common virtualization is that you don’t have to worry about the available physical disk capacity with the former. You need another 100 Terabyte? Just create a new Elastic Block Storage (EBS) volume with a mouse click. Of course, you have to pay for the provisioned storage. 1TB costs $100 per month. This is not really cheap. Flexibility and scalability have their price. Volumes can be easily attached to an Instance. This works similar to other virtualization solutions. Volumes can be attached only to running Instances, though. Once the volume is attached, you have to add the drive with the Windows Disk Management applet and format the volume. You can detach a volume while the Instance is running. If you re-attach a formatted volume, you only have to reactivate it with Windows Disk Management.




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