When available space goes below a predetermined warning threshold, the error is displayed, along with the associated event code:
085080 Array storage is low on available physical space
The exact value of the critical threshold is not user-configurable, and is subject to change.
Use the rmvdisk command to delete unwanted volumes.
Space is not immediately available after you remove a volume. To reclaim the space, run the recoverarray -trim command. This command might impact performance.