This integer reports the total number of files (directory entries) that can be stored on the file system if such a limit exists separate from raw space, returning -1 if no such limit applies. An administrator checks this on filesystems with a fixed inode-style entry limit to avoid running out of file slots even while disk space remains. For example, a filesystem hitting this ceiling would fail to create new files even though cpqHoFileSysSpaceUsed shows plenty of free space remaining.