I created new file system.(fs name is 1TB)

In Unisphere, Used capacity is 15.6 GB without any writing on the file system.

nas_fs -size [file system name] output is following.

[nasadmin@VNX5700-CS0 ~]$ nas_fs -size 1TB

total = 1032576 avail = 1032575 used = 1 ( 0% ) (sizes in MB) ( blockcount = 2147483648 )

volume: total = 1048576 (sizes in MB) ( blockcount = 2147483648 ) avail = 1032575 used = 16001 ( 2% )

Does Unisphere display volume's used capacity?