For information about freeing up disk space, see Freeing up disk space in iManage Drive section in iManage Drive Help.

Additionally, you can specify the minimum disk space that should be available in iManage Drive using the following admin setting: min_free_space_for_download_mb. The disk space is freed up only if the space in the disk is less than the value specified in min_free_space_for_download_mb admin setting. 

Although we don't enforce a minimum storage requirement for using iManage Drive, if the disk space is less than the value specified in min_free_space_for_download_mb, then iManage Drive no longer downloads files. So, we recommend that you retain the minimum disk space specified.