Scalr\Modules\Platforms\Ec2\Ec2PlatformModule::IsServerExists PHP Метод

    public function IsServerExists(DBServer $DBServer, $debug = false)
    {
        $list = $this->GetServersList($DBServer->GetEnvironmentObject(), $DBServer->GetProperty(EC2_SERVER_PROPERTIES::REGION));
        return !is_array($list) ? false : in_array($DBServer->GetProperty(EC2_SERVER_PROPERTIES::INSTANCE_ID), array_keys($list));
    }