.Object Based Disk UUID
[[struct-obd-uuid]]
****
[source,c]
----
#define UUID_MAX        40
struct obd_uuid {
        char uuid[UUID_MAX];
};
----

The 'uuid' contains an ASCII-formatted string that identifies
the entity uniquely within the filesystem.  Clients use an RFC-4122
hexadecimal UUID of the form ''de305d54-75b4-431b-adb2-eb6b9e546014''
that is randomly generated.  Servers may use a string-based identifier
of the form ''fsname-TGTindx_UUID''.
****