  Problems with disk volume labels and MOUNT? 
 The Question is:
 
We have an alpha 4100.  A RZ1CB (local) had to be replaced.
 
We dismounted the drive and installed a spare.  Initially we we labeled the
drive KPERRY.
 
In short, once we reloaded the drive with our data, we renamed the label to
the original one and dismounted it.
 
When we tried to remount the drive with the original label it would not work
until we rebooted the machine.
 
Can you tell me why?
 
Thank you,
 
 
Joe Brazeal
Soutwest Power Pool
 
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&lt;P&gt;&lt;FONT SIZE=2&gt;-----Original Message-----&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;From: &amp;quot;VMS001::WWW&amp;quot;@vms001.das-x.dec.com&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;[mailto:&amp;quot;VMS001::WWW&amp;quot;@vms001.das-x.dec.com] &lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Sent: Monday, August 09, 1999 1:05 PM&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;To: sander@vmsbiz.eng.pko.dec.com; vms001@vmsweb.eng.pko.dec.com;&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;wizard@vmsmkt.zko.dec.com&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Subject: Ask the Wizard: 'jbrazeal@spp.org'&lt;/FONT&gt;
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&lt;BR&gt;&lt;FONT SIZE=2&gt;Date/Time: Mon August 09, 1999 01:04:51 PM &lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Remote Info: &amp;lt;null&amp;gt;&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Name: Joe Brazeal&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Email Address: jbrazeal@spp.org&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;CPU Architecture: Alpha&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Version: V 7.1&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Questions:&lt;/FONT&gt;
&lt;/P&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;We have an alpha 4100.&amp;nbsp; A RZ1CB (local) had to be replaced.&lt;/FONT&gt;
&lt;/P&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;We dismounted the drive and installed a spare.&amp;nbsp; Initially we we labeled the drive KPERRY.&amp;nbsp; &lt;/FONT&gt;
&lt;/P&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;In short, once we reloaded the drive with our data, we renamed the label to the original one and dismounted it.&lt;/FONT&gt;
&lt;/P&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;When we tried to remount the drive with the original label it would not work until we rebooted the machine.&lt;/FONT&gt;
&lt;/P&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;Can you tell me why?&lt;/FONT&gt;
&lt;/P&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;Thank you,&lt;/FONT&gt;
&lt;/P&gt;
&lt;BR&gt;
 
&lt;P&gt;&lt;FONT SIZE=2&gt;Joe Brazeal&lt;/FONT&gt;
&lt;BR&gt;&lt;FONT SIZE=2&gt;Soutwest Power Pool&lt;/FONT&gt;
&lt;/P&gt;
 
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 The Answer is:
 
  Without specific details around the "would not work" -- error messages,
  commands used, storage configuration, etc -- it is difficult to say with
  any certainty exactly what happened.
 
  OpenVMS uses the volume label to track the specific disk device, and will
  strive to prevent two disks of the same olume label from being mounted
  shareable at the same time.
 
