Create Server Pool with crsctl or srvctl

srvctl add srvpool -h
 Adds a server pool to the Oracle Clusterware.
 
  Usage: srvctl add srvpool -g <pool_name> [-l <min>] [-u <max>] [-i <importance>] [-n "<server_list>"] [-f]
      -g <pool_name>           Server pool name
      -l <min>                 Minimum size of the server pool (Default value is 0)
      -u <max>                 Maximum size of the server pool (Default value is -1 for unlimited maximum size)
      -i <importance>          Importance of the server pool (Default value is 0)
      -n "<server_list>"       Comma separated list of candidate server names
      -f                       Force the operation even though some resource(s) will be stopped
    -h                       Print usage
   
   
 crsctl add serverpool -h
 Usage:
   crsctl add serverpool <spName> [[-file <filePath>] | [-attr "<attrName>=<value>[,...]"]] [-i]
 where
      spName          Add named server pool
      filePath        Attribute file
      attrName        Attribute name
      value           Attribute value
      -i              Fail if request cannot be processed immediately
     -f              Force option
    
    
   srvctl add srvpool -g ashley_sp -l 2 -u 5 -i 3 -n "ljtcax101, ljtbab102" 
 
  crsctl status serverpool -p
 
  NAME=ora.ashley_sp
  IMPORTANCE=3
  MIN_SIZE=2
  MAX_SIZE=5
  SERVER_NAMES=ljtcax101, ljtbab102
  PARENT_POOLS=
  EXCLUSIVE_POOLS=
  ACL=owner:oracle:rwx,pgrp:oinstall:rwx,other::r--

  To modify server pool
  srvctl modify serverpool ashley_sp -attr "MIN_SIZE=1,MAX_SIZE=3, IMPORTANCE=7"
 
 
  To delete remove server pool
  srvctl remove srvpool -g SP1

To check permission

  crsctl getperm serverpool ora.ashley_sp
  Name: ora.ashley_sp
  owner:oracle:rwx,pgrp:oinstall:rwx,other::r--