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14 Image management
Use the information in this chapter to learn how to bring existing images into CloudSystem
Foundation for use in provisioning virtual machines. From CloudSystem Console, you can create
new images from virtual machines running in the cloud.
This chapter does not cover creating an image from scratch. To learn how, see documentation
available on the Enterprise Information Library or at OpenStack Software.
About Images
An image contains the operating system for a virtual machine. It defines the file system layout, the
OS version, and other related information about the operating system to provision. An image can
be provisioned to one or more virtual machines in the cloud.
Images in the cloud
Images that you add (upload) are used to boot virtual machine instances in the cloud.
Before virtual machine instances can be provisioned in the cloud, you must create at least one
provider or private network, and upload at least one image. Using the CloudSystem Console, you
upload images by doing one of the following:
Entering a file server URL
Selecting a local file
Creating an image from a snapshot of a currently running instance. See Create image from
a snapshot of a virtual machine (page 86).
Managing images
From the Images overview screen on the CloudSystem Console, you can view data about existing
images, including how many virtual machine instances are running a particular image. You can
also access the Add Image screen to upload one or more images.
After you upload an image using the console, cloud users can then use the CloudSystem Portal to
choose from available images, or create their own from existing servers. Users can also create
images using OpenStack API or CLI.
As Infrastructure administrator, you can use either the console or the service portal to edit and
delete images.
Image format support
ESX: Flat and Sparse Virtual Machine Disk format (VMDK) image files with SCSI adapters are
supported for VM guest provisioning on VMware ESX hypervisors. Other formats including
compressed VMDK images, and IDE adapters, are not supported.
If your image uses the Sparse VMDK format, you must set the required properties on the image
using the OpenStack Glance CLI.
See the OpenStack Configuration Reference at OpenStack Cloud Software for information
about configuring VMware-based images for launching as virtual machines.
KVM: Quick EMUlator (QEMU) copy-on-write format (QCOW2) formatted image files are
supported for virtual machine provisioning on KVM hypervisors. Other formats are not
supported.
84 Image management
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