XCP Maximum Values

I ran XCP SCAN with the -stats option.

There was a Maximum Values.

What is the unit of the Dirsize item?
Byte? MByte? Bit? Number of files?

I think this item is necessary to set Maxdir of the destination FAS when designing the migration.

== Maximum Values ==
Size          Depth    Namelen   Dirsize
275GiB         24             245          56654

== Average Values ==
Size            Depth      Namelen    Dirsize
1.55MiB        10              23                  11