I tried to get the id(descriptor) of the file using the DFID which is defined as #define DFID [DFID_NOBRACE] in lustre and got the output as [0x200000401:0x4:0x0].  So what does the fields separted by : in it signify?
What does [0x200000401:0x4:0x0] for a file ID signify
centos;filesystems;lustre