title: RID master role Active Directory
body: <p>When setting up a dev environment we copied an Active directory DC.
  The original setup was 3 AD servers in a forest but i seized all master roles to the copied machine.
  When running dcdiag it tells me this about the RID master role:</p>
  
  <pre>
  Starting test: RidManager
     * Available RID Pool for the Domain is 15103 to 1073741823
     * SRVDS004.xxx.local is the RID Master
     * DsBind with RID Master was successful
     * rIDAllocationPool is 14603 to 15102
     * rIDPreviousAllocationPool is 14603 to 15102
     * rIDNextRID: 15102
     * Warning :Next rid pool not allocated
     * Warning :There is less than 0% available RIDs in the current pool
     ......................... SRVDS004 passed test RidManager
  </pre>
  
  <p>It seems that RID next pool is empty.. I checked for DNS problems but they al seemed ok. Also i removed all reference to the other 2 DC's.</p>
  
  <p>It has never worked since we copied it, but we only noticed it now because our SID's ran out because there are no RID's available in the pool and out 500 batch is empty..</p>
  
  <p>Is there a way to check if that master role is realy running instead of this output which says it is running but doesn't seem to tell about why the problem occurs.</p>