For a first-level directory, which actually represents the "root" (/) directory of the target system, the QFileSvr.400 file system preserves the same uppercase and lowercase form in which object names are entered.
However, no distinction is made between uppercase and lowercase when QFileSvr.400 searches for names.
For all other directories, case-sensitivity is dependent on the specific file system being accessed. QFileSvr.400 preserves the same uppercase and lowercase form in which object names are entered when file requests are sent to the i5/OS™ file server.