Dell EMC Exam DES-1423 Topic 4 Question 56 Discussion

A new Isilon administrator has created their first quota of 100 TB on a directory called ''/ifs/Boston-zone/RnD''. Both the Engineering and QA teams have access to this directory. The directory sits on a 4-node H400 node pool.

Two weeks later, the administrator notices that the team's available disk space is decreasing faster than anticipated for the ''/ifs/Boston-zone/RnD'' directory.

What is the most likely cause for the decrease in disk space?