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<H1><A NAME="SECTION00650000000000000000"></A>
<A NAME="1864"></A>
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The Protocol Used Between the Director and the File Daemon
</H1>

<P>
A typical conversation might look like the following: 

<P>
<PRE>
FD: listens
DR: makes connection
DR: Hello &lt;Director-name&gt; calling &lt;password&gt;
FD: 2000 OK Hello
DR: JobId=nnn Authorization=&lt;password&gt;
FD: 2000 OK Job
DR: storage address = &lt;Storage daemon address&gt; port = &lt;port-number&gt;
          name = &lt;DeviceName&gt; mediatype = &lt;MediaType&gt;
FD: 2000 OK storage
DR: include
DR: &lt;directory1&gt;
DR: &lt;directory2&gt;
    ...
DR: Null packet
FD: 2000 OK include
DR: exclude
DR: &lt;directory1&gt;
DR: &lt;directory2&gt;
    ...
DR: Null packet
FD: 2000 OK exclude
DR: full
FD: 2000 OK full
DR: save
FD: 2000 OK save
FD: Attribute record for each file as sent to the
    Storage daemon (described above).
FD: Null packet
FD: &lt;append close responses from Storage daemon&gt;
    e.g.
    3000 OK Volumes = &lt;number of volumes&gt;
    3001 Volume = &lt;volume-id&gt; &lt;start file&gt; &lt;start block&gt;
         &lt;end file&gt; &lt;end block&gt; &lt;volume session-id&gt;
    3002 Volume data = &lt;date/time of last write&gt; &lt;Number bytes written&gt;
         &lt;number errors&gt;
    ... additional Volume / Volume data pairs for volumes 2 .. n
FD: Null packet
FD: close socket
</PRE>
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2012-01-24
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