public function getDisks()
{
$retval = array();
switch ($this->config->type) {
case FarmRoleStorageConfig::TYPE_EBS:
case FarmRoleStorageConfig::TYPE_CSVOL:
case FarmRoleStorageConfig::TYPE_CINDER:
$retval = array($this->config);
break;
case FarmRoleStorageConfig::TYPE_RAID:
$retval = $this->config->disks;
break;
}
return $retval;
}