A pool may be renamed with the following procedure, regardless of the type of files stored on it.
Disable file transfers from and to the pool with
(<poolname>) admin >pool disable-strict
Then make sure, no transfers are being processed anymore. All the following commands should give no output:
(<poolname>) admin >queue ls queue(<poolname>) admin >mover ls(<poolname>) admin >p2p ls(<poolname>) admin >pp ls(<poolname>) admin >st jobs ls(<poolname>) admin >rh jobs ls
      Now the files on the pools have to be unregistered on the pnfs
      server with
(<poolname>) admin >pnfs unregister
Even if the pool contains precious files, this is no problem, since we will register them again in a moment. The files might not be available for a short moment, though. Log out of the pool, and stop the service:
[root] #jobs/pool[2] -pool=<poolDomainName> stop
      Rename the pool in the
      <poolDomain>.poollist-file.
      Restart the service:
[root] #jobs/pool -pool=<poolDomainName> -logfile=<dCacheLocation>/log/<poolDomainName>Domain.log start
Register the files on the pool with
(<poolname>) admin >pnfs register
[2] 
              Filenames will always be relative to the dCache installation
              directory, which defaults to
              /opt/d-cache/.