I have more than sufficient hard disk space and had been able to do Recording in the past using the same recording key.
However, now I encounter an error "Unable to start recording. The recording server is full." when I wish to do a recording from my endpoint
The user has exceeded the quota. The disk quota for each user is set to the default: 100 GB. The total usage of videos recorded by the user has exceeded this amount. The disk quota (specified in MB) for the user can be increased under Administer:Content Management: Default recording properties