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Send e-mail to nebula@ncsa.illinois.edu requesting access to Nebula. Include your name and contact information, what project you are working on and what you want to use your account for. When your account is created you will be sent an e-mail with instructions on how to access the system.
Do I need to renew every year?
A yearly review will be performed on all Nebula projects to verify they should still have access.
How do I get help?
- Read the Getting Started document
- Read through this FAQ
- Join the Nebula chat group at https://chat.ncsa.illinois.edu/channel/nebula
- Submit a ticket by sending e-mail to nebula@ncsa.illinois.edu.
- Attend the Nebula user's group meetings held every other month: Nebula OpenStack User's Meetings
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How do I create an instance?
There are a lot of options you can select when you create an instance but at its most basic you select the amount of resources your instance will use by selecting a flavor and you select where your instance will get the operating system that it will run from. You can choose to have your instance boot from an existing image, a snapshot taken from another instance or from a bootable volume. The Getting Started document walks you through the steps to create a basic instance that boots from an image.
What are flavors?
Virtual hardware templates are called "flavors" in OpenStack. They define the resources that a new instance will be created with. The They specify sizes for RAM, disk, number of cores, and so on. There are publicly available flavors on Nebula and others that are project defined.
What is ephemeral disk?
Ephemeral disk is the disk that is created with an instance. Any changes made to it while the instance is running are lost when the instance is terminated [ does rebooting cause ephemeral disk to be lost? ]
What boot images are available?
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