question: public void createVVset ( String displayName ) throws Exception { _log . info ( "createVVset enter" ) ; ClientResponse clientResp = null ; String payload = "{\"name\": \"" + displayName + "\" }" ; _log . info ( " 3PARDriver: createVVset uri = {} payload {} " , URI_CREATE_CG . toString ( ) , payload ) ; try { clientResp = post ( URI_CREATE_CG , payload ) ; if ( clientResp == null ) { _log . error ( "3PARDriver: createVVset There is no response from 3PAR" ) ; throw new HP3PARException ( "There is no response from 3PAR" ) ; } else if ( clientResp . getStatus ( ) != 201 ) { String errResp = getResponseDetails ( clientResp ) ; _log . error ( "3PARDriver: createVVset There is error response from 3PAR = {}" , errResp ) ; throw new HP3PARException ( errResp ) ; } else { _log . info ( "3PARDriver: createVVset success" ) ; } } catch ( Exception e ) { throw e ; } finally { if ( clientResp != null ) { clientResp . close ( ) ; } _log . info ( "3PARDriver: createVVset leave" ) ; } }
target:  VV Set is a HP3PAR term for Consistency Group.  This deals with creation of CG, volumes will be added to the CG in create volume