The DDP may sometimes hang when the OS partition gets full, resulting in problems such as GUI unavailability and DDP volumes disconnection. That problem can happen for various reasons like a machine writing error reports indefinitely to the DDP logs leading the log file size to get bigger and bigger until the OS eventually hangs because of disk space insufficiency. In order to check the remaining space on the OS partition, login to the DDP by ssh and enter the following command: $ df -h Then localise the partition that is mounted on the root as show below:
Under 300MB of available space, the DDP might start showing unexpected behaviour. When this is the case, some space must be released on the disk. This can be achieved by rotating or simply deleting the logs and other error messages, this procedure being explained in the next topic.