What does it mean to you? Jim Metzler

Transcription

1 Application Delivery 2.0 What is it? What does it mean to you? Jim Metzler

2 Goals and Non-Goals Goals of the Presentation: h Identify factors that currently impact application delivery h Describe how a new generation of technology is impacting application delivery Non-Goals: h Read every bullet on every slide

3 Agenda Application Delivery 1.0 A New Generation of Challenges & Solutions Summary

4 Factors That Make Application Delivery Difficult Today Consolidation of IT resources Distribution of employees The deployment of protocols that are: hchatty; e.g., CIFS hcomputationally p y intense; e.g., SSL The prevalence of hacking

5 Factors That Make Application Delivery Difficult Today Lack of visibility Stovepipes & MTTI Applications have different characteristics Complexity n-tier applications

6 Today s Complex N-Tier IT Environment End Users End Users LAN WAN ADC Web Servers Web Servers Application Servers Application Servers Database Servers Database Servers ADC refers to an Application Delivery Controller

7 Application and Infrastructure Complexity Increases The Probability y of a performance problem Time it takes to identify the root cause of performance problems Probability y of a security intrusion Time, cost, difficulty and risk of evolving the infrastructure

8 The Application Delivery Framework The four components of the application delivery framework are: hplanning & Design hmanagement hcontrol hnetwork and Application Optimization

9 Key Planning & Design Tasks Include: Create a roadmap for each major component of IT Identify the interdependencies Identify the critical applications and services Establish goals for the performance of the key applications and services Design for the appropriate levels of availability and performance Develop a management architecture

10 Application Performance Management Framework Automatically map the business critical applications to the relevant components of the infrastructure. Quantify how the performance of the infrastructure impacts the performance of the applications. Employ predictive and proactive monitoring of the infrastructure and applications to identify the components that are causing the degradation. I l t id t l i Implement rapid root cause analysis capabilities.

11 Control hclassify traffic based on myriad criterion hprioritize traffic that is business critical and delay sensitive hperform traffic management and dynamically allocate network resources hdetermine who has access to which assets hblock unauthorized access at the perimeter of the company hidentify and shut down attacks

12 Application Response Time Equation 1 R: Application Response Time Payload: Amount of data to be transmitted App Turns: Required number of round trips RTT: Round Trip Time Concurrent Requests: # Simultaneous sessions Cs: Server Side Compute time Cc: Client Compute time 1: Variation of an equation in Why Centralizing Microsoft Servers Hurts Performance, Peter Sevcik and Rebecca Wetzel,

13 Common Optimization Techniques To Reduce Payload: hcompression hcaching hde-duplication To Increase Goodput: hforward Error Correction To Reduce the Impact of RTT: hprotocol acceleration To Reduce Apps Turns: hrequest Prediction hrequest Spoofing To Reduce Server Side Compute Time: htcp Multiplexing hssl Offload To Reduce the Impact of Congestion: hqosq S

14 Characteristics of the Current Optimization Solutions There are three general classes of solutions: hwan Optimization Controllers (WOCs) & soft WOCs happlication Delivery Controllers (ADCs) & soft ADCs happlication Delivery Services (ADSs) The goal of a WOC is to improve the performance of applications delivered from the data center to users in the branch office over a WAN such as ATM or MPLS. ADCs provide functionality such as reverse caching and compression and also offload computational intense tasks off the servers; i.e., TCP multiplexing, processing of SSL

15 Structure of an Application Delivery Service (ADS)

16 ADS Functionality Unlike a WOC or an ADC, an ADS improves the performance of the WAN by providing: hroute Optimization htransport Optimization hhttp Optimization i hcontent Offload hfirewall-like Security

17 Agenda Application Delivery 1.0 A New Generation of Challenges & Solutions Summary

18 Computer Crime: More Organized and More Sophisticated McAfee estimated that the global damage from data loss to exceed $1 trillion. Credit card fraud is now a cash cow and cyber criminals are now focusing on intellectual property. Some malware writers now have R&D departments and test labs. A black market has evolved - botnets are available for rent; malware authors who sell their code and provide support.

19 Virtualization Defined Virtualization typically y involves a logical abstraction of physical systems that allows one of the following: h A single physical system to be partitioned to appear as multiple independent logical systems; e.g., multiple VLANs defined on a single physical LAN. h Multiple physical systems to appear as single logical system; e.g., a compute cluster with a single system image or RAID disk array appearing to be a single large, reliable disk.

20 Virtual Servers Application 1 Guest OS 1 Application N Guest OS N Virtual Virtual Machine 1 Machine N VM Monitor/Hypervisor Physical Machine

21 Management Challenges Associated with Server Virtualization Loss of insight into inter-vm traffic VM sprawl Effective capacity planning The ease of (automatically) creating and/or moving a VM creates challenges: hensuring the VM has the same security, storage access, and QoS configurations and policies. hkeeping track of where an application is running.

22 Virtual Desktops A VM on a data center server hosts a complete user desktop including all its applications, configurations, and privileges. il On the client device, the enterprise desktop is isolated from whatever else is running on the PC. Client-side virtualization applications are delivered to the end system s isolation environment, often using a protocol such as CIFS. Server-side virtualization ti the application and the data remain at the central side and are accessed using protocols such as Microsoft s Remote Desktop Protocol (RDP), Citrix s ICA, and/or Teradici s PCoIP.

23 The Challenges of Virtual Desktops Cost of the extra servers in the data center. Virtual desktop systems need to be tightly integrated with policy management systems and user authorization to ensure that the desktop characteristics match the users' needs and permission profiles. Delivering acceptable application performance to the virtual desktop over the WAN. The inefficiencies associated with LAN-centric remote display protocols, such as RDP, limit the performance of these protocols over the WAN.

24 Virtual Appliances A Virtual Appliance (VA) is based on network appliance software, together with its operating system. A VA runs in a virtual machine (VM) over the hypervisor in a virtualized server. A VA can include WOCs, ADCs, firewalls, routers and performance monitoring solutions among others. A VA can alleviate some of the management burdens if the key management tasks can be automated and centralized at the data center.

25 Silly Things That Get Said About Cloud Computing Providing IT is like providing electricity You know, it is like Salesforce.com You no longer need to know how services are provided You will always save a lot of money It is a fundamentally new approach to IT

26 Cloud: A Lot of Things Old Time sharing Virtualized computers Out-tasking Renting applications

27 Cloud: A Few Things New Dynamic i Movement of Virtual Machines and the associated functionality On demand provisioning of IT resources New implementation ti models

28 So, what is cloud computing? Definition: iti Depends upon who you talk to. Goal: A significant improvement in the cost-effective, elastic provisioning of IT services.

29 Key Characteristics of a Cloud Computing Solution Dynamic y creation & movement of resources Virtualization of IT resources Automation of IT processes Centralization of IT resources Simplification of IT services Increased reliance on the WAN/Internet

30 Classes of Cloud Computing Public hsoftware as a Service hinfrastructure as a Service hplatform as a Service Private Hybrid

31 Planning for Cloud Computing Determine your cost structure Identify what you will provide yourself and what will be provided by a third party Perform due diligence on potential third parties Simplify the services and applications you provide Standardize the infrastructure Identify how your implementation of server Identify how your implementation of server virtualization impacts other aspects of IT

32 Next Generation Management Need visibility into inter-vm traffic Focus management tasks at the VM level Not just applications, but also services Automate processes such as change and configuration management Integrate processes such as fault and performance management Manage over multiple management domains

33 Next Generation Control Implement virtualized desktops and mobile devices Ensure that business managers do not bypass IT Guarantee that you can: hcontrol where your data is stored hpass compliance audits hget your data back whenever you want it Ensure that any third party provider will: hkeep K your data safe from security intrusions i hhave adequate disaster recovery capabilities Defense in Depth

34 Next Generation Network Acceleration & Optimization Resigned g data center LAN and branch offices Is the network good enough? Increased use of ADCs, WOCs some of which are virtualized Increased use of Application Delivery Services for performance and distributed security More distributed access to the Internet

35 Agenda Application Delivery 1.0 A New Generation of Challenges & Solutions Summary

36 Summary Ensuring acceptable application delivery is challenging today. A new generation of challenges and solutions will dramatically impact application delivery. IT organizations MUST plan for the challenges and solutions associated with Application Delivery 2.0.

37 References The 2009 Application Delivery Handbook A Guide to Understanding Cloud Computing Cloud Computing: A Guide to Risk Mitigation p check-guide-to-risk-mitigation.html The Challenges of Managing Virtualized Server Environments

38 Thank you. Jim Metzler