Answering the question "How much space should be allocated for a JIRA or Confluence deployment?" is much like answering the question "How long is a piece of string?". As a result, we've decided to provide a quick glance at our public Confluence and JIRA deployments in a valiant effort to provide a glimmer of light at the end of the space allocation tunnel:
Size Information For Atlassian's Own JIRA Instances
Size Information For Atlassian's Own Confluence Instances
