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Nebula is an OpenStack cluster hosted by NCSA. Nebula is meant to be a development and science platform, not a production host for services. [Something about its size/composition? When it came online? How it has grown?]
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ITS provides support for using and resolving issues with OpenStack on Nebula but does not act as system administrators for each of the instances that the users create on the system. Some issues might be covered in this FAQ, you might get help on the chat group, Google is your friend.
How can I restore a filesystem that has been set to read-only?
A description of how to recover when OpenStack marks one of your files read-only is here.
How do I create an instance?
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