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Presentation riverbed steelhead appliance main 2010
- 1. Riverbed Steelhead Appliances (Presenter Name) (Title) (date)
- 5. External Validation 5 Years Running 97% Most Recommended Technology of the Year
- 6. Riverbed Sweeps Industry Awards for WAN Acceleration Riverbed has won InfoWorld’s technology award for best WAN accelerator 5 years running….
- 7. Gartner “Magic Quadrant for WAN Optimization Controllers, 2009” Andy Rolfe, Joe Skorupa, Severine Real © 2009 Gartner, Inc. and/or its Affiliates. All Rights Reserved. Reproduction and distribution of this publication in any form without prior written permission is forbidden. The information contained herein has been obtained from sources believed to be reliable. Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartner's research may discuss legal issues related to the information technology business, Gartner does not provide legal advice or services and its research should not be construed or used as such. Gartner shall have no liability for errors, omissions or inadequacies in the information contained herein or for interpretations thereof. The opinions expressed herein are subject to change without notice.
- 10. Riverbed has Customers in All Industries Financial Services Professional Services Manufacturing Media/Communications A/E/C Energy Healthcare/Bio/Pharma US and International Government Retail/Consumer Transportation/Logistics Tech/Software
- 11. Major Partners in Every Area of Technology Storage HW & Applications Virtualization Networking & Management Security A/E/C Applications Enterprise Applications Wireless, Satellite, VoIP and Media Streaming Cloud Providers
- 12. Solution Areas
- 16. Use Cases
- 25. Breaking Down Cloud Performance Barriers Branch Public Cloud Data Center Private Cloud Data Center WAN Steelhead appliances & Virtual Steelhead Cloud Steelhead Riverbed is helping to fulfill the promise of cloud computing Storage App Server Tape Backup File Server
- 29. Riverbed scales to the largest successful deployments Australia 230+ sites deployed, driven by performance for Web and office applications Global deployment for one of largest network presences in the world; Uses Riverbed in “network in a box” field deployments 300 appliances deployed across the country. Main driver is the consolidation of SharePoint and .NET applications Competitive take out; Backups prior to the installation of the Steelhead devices use to take days now take 2 to 3 hrs to complete. 100+ appliances deployed. Driver was data center consolidation down to 1 main data center. Payback of $30 million over 5 years
- 35. A Comprehensive, Single Platform Approach WAN DATA CENTER BRANCH OFFICES MOBILE WORKERS Steelhead Appliance SECONDARY DATA CENTER “ Makes 3000 miles feel like 30 feet” Steelhead Mobile Steelhead Appliance Steelhead Appliance All powered by the Riverbed Optimization System (RiOS)
- 38. Transport Streamlining Overcomes TCP Limitations The net effect is a 60-98% reduction in TCP round trips DATA CENTER BRANCH OFFICE WAN Make TCP payload bigger 16KB to 100KB+ Repack payload with references From 100KB+ to Virtual 1MB+ References New data Data
- 40. Application Streamlining Overcomes Application Protocol Limitations Request DATA CENTER BRANCH OFFICE Optimized WAN Transfer The net effect is 65-98% reduction in WAN round trips WAN Steelhead completes transaction locally Steelhead completes transaction locally
- 42. Example Application Performance - Exchange 2007
- 48. Steelhead Model Specifications Small Office Mid-Size Office Model 250 Series 550 Series 1050 Series Configurations L M H M H L M H Profile Desktop 1U Optimized WAN Capacity (a) 1 Mbps 1 Mbps 2 Mbps 2 Mbps 4 Mbps 8 Mbps (o) 10 Mbps (o) 20 Mbps (o) Optimized TCP Connections (d) 30 125 200 300 600 800 1,300 2,300 Raw Capacity 120GB 120GB 120GB 160 GB 160 GB 250 GB 250 GB 500 GB Data Store Capacity 40GB 40GB 40GB 80 GB 80 GB 100 GB 100 GB 200 GB Large Office or Data Center 2050 Series 5050 Series 6050 7050 Series INT9350 L M H L M H L M 1U 3U 3U 45 Mbps (b) 45 Mbps (b) 45 Mbps (b) 90 Mbps (b,0) 90 Mbps (b,0) 155 Mbps (b) 310 Mbps (b) 1Gbps (b,c,n) 1Gbps (b,c,n) 12 Gbps 2,500 4,000 6,000 7,500 10,000 18,000 50,000 75,000 100,000 1,000,000 1 TB 1 TB 1 TB 2 TB 2 TB 3 TB 8 TB 2.8TB 5.0TB - 400 GB 400 GB 400 GB 600 GB 600 GB 800 GB 3.5TB 2.2TB 4.4TB -
- 50. Comprehensive Riverbed Product Deployment WAN DATA CENTER BRANCH OFFICES MOBILE WORKERS Steelhead Appliances (Clustered) SECONDARY DATA CENTER Steelhead Mobile Steelhead Appliance & Riverbed Services Platform Steelhead Appliance Cascade Profiler Steelhead Mobile Controller Interceptor VM VMDK Central Management Console
- 62. Reporting Example: Traffic Summary
- 63. Reporting Example: Bandwidth Optimization WAN link was effectively expanded by 8.4x!
- 65. Services to help
- 66. Riverbed Professional Services Overview Riverbed Services Platform (RSP) Application / Server Inventory & Consolidation Assessment Application Centralization & Migration Carbon Footprint / Energy Consumption Assessment Recovery Point & Time Objective Assessment Configuration Design Deployment Testing Health check & Assessment Operational Services Custom Enablement Storage & Data Assessment Backup & Replication Acceleration Enterprise Application Acceleration Custom Application Acceleration Application Anomaly Profiling SNMP Alerting Framework Integration Traffic Analysis Application Profiling 24 / 7 Monitoring Solution Enablement Global Project Management, Resource Coordination & Onsite Residency Virtualization & Consolidation Data & Storage Application Acceleration Enterprise Visibility Global Training & Education Curriculums
- 67. Worldwide Support & Logistics Operations Santiago Tokyo Singapore New York Rotterdam Beijing Hong Kong Sydney Chennai Johannesburg Abu Dhabi Moscow Seoul Sao Paulo Amsterdam London Corporate HQ Parts Depots Technical Assistance Center (TAC) Mountain View San Francisco Toronto Mexico City 7x24 “follow the sun” support from six global support centers 4 hour hardware support from 1400+ points in 220 countries through Orange and IGS Partnerships
- 70. Next Steps Plan a multi-site evaluation – you’ll love it Discuss projects where Riverbed adds value Talk with reference customers Answer any questions you have WAN
- 71. Thank you for your time. www.riverbed.com
- 72. Additional Information on Various Topics
Hinweis der Redaktion
- This section includes a general overview of Riverbed and our value to customers.
- So who is Riverbed? We may not be a household brand name, but we are not a startup company. Riverbed is the IT infrastructure performance company… for networks, applications and storage. We are a profitable, stable public technology company. We have a very strong balance sheet – lots of cash and no debt. Our products are already relied upon by 54% of the Forbes global 100 – they are in use at over 6,000 enterprises around the world of all sizes, from the largest enterprises to small regional business and non-profits. They are used in virtually every country and in every vertical market. They are deployed in branch offices, data centers, and laptops; they are deployed on ships, oil rigs and even in war zones.
- Our success is consistently reflected in the viewpoints of Industry Analysts, Journalists, and best of all customers. Industry analysts such as Gartner and Forrester rank us as a leader in our vision, ability to execute, and strength of our offering. Technology journalists and press give us recognition as the best product, demonstrated by 5 years in a row winning Inforworld’s Technology of the Year for Best WAN Accelerator. Even better, 97% of our customers would recommend us to friends and colleagues, a result unmatched in any IT vendor’s customers.
- In fact, we have won just about every industry award that’s been given over the last two years! eWeek InfoWorld Storage Magazine Byte and Switch Network Computing On and on… We were also named as the top IPO by the Wall Street Journal in 2006, and the most successful IPO by Investor’s Business Daily.
- Our own bi-annual customer surveys show very high satisfaction and likelihood to recommend the products to others.
- In today’s economy, customers have a high bar to hurdle in getting new IT investments approved. Our high ROI and quick payback help them move forward. IDC surveyed our customers and found on average payback was achieved in around 7 months, with savings coming from many areas and productivity increased as well.
- Riverbed’s products work equally well (and have been accepted) across all industries. Some of the largest companies in the world, some of the best known brands, depend on Riverbed to optimize their application performance across the WAN.
- In this section, we’ll look at customer projects and challenges and see how Riverbed addresses each.
- Most companies use bandwidth as the scapegoat for all of the problems that remote offices have with application performance over the WAN. Poor performance, however, is the result of three equally important problems. Solving just one of them will not truly solve the problem. Networking bandwidth AND latency slow data access Storage problems result in excess capacity utilization for backup, high management costs, and limited access to data in other offices Applications that are not optimized for use over the WAN operate slowly even in high capacity environments – even if the network is fine-tuned
- Application acceleration Increase user satisfaction and collaboration Roll out new applications Bandwidth optimization Reduce networking costs Increase available capacity for applications Consolidation Centralize and simplify management Reduce costs by eliminating redundant infrastructure Virtualization Gain flexibility and standardize configurations Further reduce costs as with consolidation Disaster recovery Provide resiliency of operations Protect from data loss or interruption of service Meet legal requirements
- Data Streamlining uses a proprietary algorithm to break up the data into small referenceable data chunks and store them in the central steelhead. The first time a file is sent through the network, all the data and reference links to the data are sent to the remote steelhead. (A “cold send”) The cold send is still optimized with the TCP and application optimizations discussed on the next slide. Next time data is requested the central steelhead needs to simply send references to data on the remote steelhead. If parts of the data has changed, the steelhead simply sends the chunks of data that have changed, with new references. The file is then reconstructed using a combination of the changed and unchanged data.
- Use a different environment
- In this section we’ll examine how some of our customers have maximized their IT infrastructure performance with Riverbed.
- Here are some examples of Riverbed in some of the largest organizations in the world. Of course, we work equally well for small and medium businesses, and can cost-effectively scale to meet your needs.
- Now we’ll look at the products themselves and how they will work in your environment.
- Riverbed has the most comprehensive WAN optimization solution available. Our technology allows us to leverage the same code base (RiOS) between the data centers, branch offices, and mobile workers. The main product lines are Steelhead appliance and Steelhead Mobile software.
- It’s important to note that Steelhead Mobile, unlike other mobile products, was created by using the same code that runs the Steelhead appliance. So while Steelhead Mobile is a 1.0 product, it is based on 6 th generation code. Steelhead mobile contains many of the same features as the Steelhead appliance, including the features that give us greater speed than the competition as well as ease of use features. With our auto-discovery functionality, we can help ensure that Mobile clients can easily connect to the data center steelhead appliance with no changes to applications or clients. It contains the same application-independent foundation to support data reduction and TCP streamlining, as well as application streamlining modules to dramatically increase the performance of certain application protocols such as CIFS for file sharing and windows-based applications, MAPI for exchange, and HTTP for web applications. Version 1.0 of the software does not contain SSL optimization, so HTTPS is currently passed through.
- Data Streamlining uses a proprietary algorithm to break up the data into small referenceable data chunks and store them in the central steelhead. The first time a file is sent through the network, all the data and reference links to the data are sent to the remote steelhead. (A “cold send”) The cold send is still optimized with the TCP and application optimizations discussed on the next slide. Next time data is requested the central steelhead needs to simply send references to data on the remote steelhead. If parts of the data has changed, the steelhead simply sends the chunks of data that have changed, with new references. The file is then reconstructed using a combination of the changed and unchanged data.
- A basic challenge with TCP is that it can only send a small amount of information at a time. Transport Streamlining allows Riverbed Steelhead appliances to communicate over the WAN with optimal TCP settings, facilitating more efficient communications. In addition, Steelhead appliances repack each packet with references instead of raw data. That means each packet could carry virtual megabytes of data instead of the typical 16, 64, or 100 K of data.
- Lossy networks cause traditional TCP transfers to ramp up slowly and ramp back down at the first sign of packet loss. This causes the jagged sawtooth pattern in blue. Riverbed has enabled multiple features that allow for greater use of available bandwidth. These two features are HS-TCP and MX-TCP. They are useful in different scenarios. Both features are based on TCP. Unlike other approaches that use unfriendly or proprietary protocols, our features work based on what is proven in the market. HS-TCP is designed to ramp up faster, and back off more slowly, thereby enabling greater utilization of a large link with a single TCP connection. HS-TCP works well when this connection must share the bandwidth with other connections, and there is a “clean” circuit, ie, no packet loss. MX-TCP allows the administrator to configure a throughput limit, and allows Riverbed to use 100% of that limit. This works well even in scenarios with packet loss. MX-TCP will not back off in the face of packet loss, it will merely prioritize lost packets to be sent again.
- Application Streamlining enables the central steelhead to act as a client and request data from the application server. This eliminates typical back-and-forth over the WAN and contains it to the LAN, where transactions are always very fast.
- Riverbed has the greatest number of Application-specific optimizations of any vendor. By doing so, we provide the best possible performance across the applications that enterprises care about the most. We also support security features for many of these applications -- like SSL, encryption, and SMB signing. Compare to Cisco with only CIFS (file cache), MAPI (unencrypted only), NFS, and CIFS Print. Or Blue Coat with only Caches for CIFS, MAPI, HTTP, or SSL.
- Sample of the results we’ve seen in our testing.
- We’ve focused particularly on Data Protection use cases, as by their very nature they require moving a lot of data long distances over the WAN. Many specific features are included to optimize DR traffic with it’s heavy demands. These include the ability to do data reduction in memory, which is faster than on disk, or even adaptively depending on the load. We offer Quality of Service, so you can decide if you want to prioritize DR activities above or below other business use of the WAN. High Speed or Maximum Speed TCP allow you to get the absolute most from your available network capacity. CPU offload features use multiple cores and also let you find the right balance between more compression or faster throughout, depending on the data going across.
- Here are a few examples of NetApp customers using Riverbed, but we can offer similar stories for all storage vendors.
- This slide covers a range of network integration features, showing how the product can flexibly work in any environment.
- Security is an important concern, and Riverbed has a thought this through carefully with a range of security features at every point, including encryption of data on the network and on disk, and role based administration. This can help for customers worried about audits for government or industry regulations or standards such as HIPAA or the Payment Card Industry Data Security Standard (PCI DSS).
- Emphasize there is a model family for any size location and that they have performance specifications that can be cost effectively upgraded within a model family as WAN demand grows. Often this is enabled by just a software license key, although some do require hardware upgrade, but this can be easily added onsite. Interceptor lets customers cluster multiple Steelhead appliances for even greater scale and high availability in data centers.
- Inbound (WAN to LAN) Steelhead capacity is unrestricted; outbound WAN capacity can be expected up to the amount listed. On the 2050, 5050, and 6050, total WAN capacity equals inbound traffic + outbound traffic (b) No enforced optimized WAN bandwidth limit (c) For Data Center to Data Center workloads, WAN capacity is up to 1 Gbps. For DC to remote office workloads, recommended WAN capacity is up to 622 Mbps (d) TCP Connections can be expected up to the amount listed (e) No PFS support (f) Data store uses fault tolerant striped configuration (a) Inbound (WAN to LAN) Steelhead capacity is unrestricted; outbound WAN capacity can be expected up to the amount listed. On the 2050, 5050, and 6050, total WAN capacity equals inbound traffic + outbound traffic (b) No enforced optimized WAN bandwidth limit (c) For Data Center to Data Center workloads, WAN capacity is up to 1 Gbps. For DC to remote office workloads, recommended WAN capacity is up to 622 Mbps (d) TCP Connections can be expected up to the amount listed (e) No PFS support (f) Data store uses fault tolerant striped configuration (g) Hot swappable disks (h) Optional Network Bypass cards: Dual and Quad LX and SR GigE Fiber GigE, Quad Copper GigE, 10GbE SR (INT9350 & SHA7050 only) (k) Raw disk capacity allocated to the RSP partition. About 7GB is used by RSP package and filesystem. Partner packages need additional storage (based on the size of the package) (m) RSP requires additional 2GB of memory, 6050 requires 4GB, 7050 requires 8GB (n) Over 4Gbps of LAN performance with 2.5X data reduction when configured to use jumbo Ethernet frames. (o) The 5050L and the 1050 B/W increases require RiOS 5.5.7 or 6.0.2 onwards
- Here we will discuss features and products that extend beyond the Steelhead appliance itself for a more complete solution.
- Riverbed has the most comprehensive WAN optimization solution available. Our technology allows us to leverage the same code base (RiOS) between the data centers, branch offices, and mobile workers. The main product lines are Steelhead appliance and Steelhead Mobile software.
- The Steelhead Mobile client gives you the same benefits as the appliances, but for any user, any where. When in ‘visible’ mode, end users can click on an icon in the system tray to get some basic information about their installation. Health, connectivity, data reduction, and even throughput are reported to the end user. From the support side, users can do a health check to determine how the steelhead mobile client is running. Users can restart their Steelhead Mobile client, and even reset their client to the administrator policy.
- Deployment of Steelhead mobile is a snap. Deploy the Steelhead mobile controller in the Data center. This can be deployed anywhere that the CMC would be deployed – essentially anywhere that would be accessible to end user machines. Using MSI packages, you can push Steelhead Mobile software out to clients. MSI packages ease the install process. In machines without admin privileges they temporarily elevate privs. to do the install. MSI packages also enable easy rollback or upgrade, ensuring that lifetime maintenance of the software is easy. Steelhead mobile clients first get a policy and license from the Steelhead mobile controller. The policy includes an optimization policy. Licensing is concurrent licensing, meaning that the Steelhead Mobile controller manages a ‘pool’ of licenses and any client can receive a license if one is available. Finally, the Steelhead Mobile client connects directly with a steelhead appliance to perform optimization. Note that while the client has no bandwidth or TCP limitations the Steelhead appliance does. The end result is that mobile users now get the same LAN-like experience that Steelhead appliances have been able to deliver in branch offices.
- You can easily manage all the remote clients from a central point, giving a solution with a low total cost of ownership.
- Mention that the Interceptor sits in-path and does not terminate connections itself but acts more like a director for connections.
- SMC-ve All the benefits of Steelhead Mobile without any additional hardware Virtual package deployed in Riverbed Services Platform (RSP) on Steelhead Appliance Enterprise grade acceleration for SMBs or smaller strategic mobile deployments Lower cost virtual platform makes it easier to bring Steelhead Mobile to firms of any size Flexibility of 10 initial licenses allows for precise targeting of mobile users Sensor-ve Sensor-VE collects performance metrics at the remote branch office Same metrics that Cascade Sensor collects in the data center You get consistent metrics for all environments – optimized or not Implemented as a Riverbed Services Platform (RSP) package Data Flows: Think of security and print modules on the SH Print job coming from LAN to print server and back Data from WAN is uncompressed by SH and then sent to the Security module and then to LAN Watchdog: VM monitoring with “heartbeat” On VM failure a Slot can block all traffic sent to the VM or route around it Configurable for heartbeat frequency, reboot of VM, and startup grace period Deploy RSP on in-path Steelhead or virtual in-path Steelhead Customers can add virtual disk as needed
- Explain how assessment/visibility is the missing link in the optimization process. It bridges the gap between the hard data and the actions you take based on that data.
- Here we’ll look at a few examples of how you can easily manage your Riverbed operations across the enterprise.
- The Steelhead appliance has a powerful management console that allows admins the control and visibility they need for the device.
- This report shows the type and relative amount of each kind of network connection being optimized, and how much data is being taken off the WAN for a variety of applications.
- This report is showing a summary of how much traffic has been streamlined, and as a result the effect on how big the WAN feels in terms of available capacity. Data that didn’t have to be sent over the WAN (thanks to optimization) is represented by gray bars - 408.5GB or 88% of data removed from the WAN link!
- For larger environments, the CMC is a great addition to manage Steelhead appliances across the enterprise, simplifying administration even as you grow.
- We’re not just about great products, we have a range of services to deliver a complete solution from architectural design, to deployment and tuning, to support around the world.
- Riverbed Professional Services has a uniquely experienced WAN services team with a wide range of specialized capabilities that thousands of customers have benefited from worldwide. Riverbed Professional Services’ comprehensive assortment of service offerings have been developed to enable and support our customers’ varying needs around Network Performance, WAN Optimization, Virtualization, Application Acceleration and Visibility. RPS has developed a worldwide Consulting and Training services network consisting of expertise that can be engaged quickly: Logistics Centers Engagement Managers Principal Consultants Senior Engineers Installation Technicians
- Riverbed runs a 24 hour, follow the sun, TAC (Technical Assistance Center) with main centers in San Francisco, Mountain View CA, Singapore, Amsterdam and New York. The is also a regional center in Tokyo to provide local cultural and linguistic support. As the client base grows we will add more regional centers to provide that linguistic and cultural support specific to certain geographic areas. All the engineers are linked digitally to provide a virtual team, this gives us the maximum benefit of a globally dispersed work force. The green dots on this map represent our spare parts depot locations, for next business day parts replacement. Those locations are: Fremont CA, Toronto, New York, Rotterdam, Chennai, Singapore, Hong Kong, Johannesburg, Beijing, Tokyo and Sydney. With Sao Paulo, Abu Dhabi, Moscow and Seoul to be added in Q1 2007.
- Our technical support team is one of the best in the industry, and has the raves, metrics and a few awards to prove it!
- Close the presentation with a recap of many of the key attributes of the technology.
- Call to action, and set up next steps….
- Historically, customers looking at WDS solutions were often faced with a compromise between security and performance. They either needed to accept subpar performance while maintaining stringent security measures, or lower the security bar in order to improve application performance with WDS. With RiOS, Riverbed eliminates this trade-off by offering security capabilities to protect data both in motion and at-rest. RiOS patent-pending SSL acceleration module allows customers to securely accelerate SSL encrypted traffic without scattering digital certifications and private keys around the enterprise with seamless integration. In addition, RiOS SSL capability works alongside existing SSL offload or load-balancing devices. Here’s how it works: 1. SSL Certificates and private keys copied to server-side Steelhead appliance (no certificate faking in branch offices) 2. Steelhead appliances use their own identity certificates to establish a secure connection (proactive or on-demand) 3. On secure data request, client handshake with server is intercepted by server-side Steelhead. server-side Steelhead SSL connection with origin server. server-side Steelhead establishes SSL connection with client. 4. Temporary session key is migrated from server-side Steelhead to client-side Steelhead, moving client’s SSL connection to client-side Steelhead. 5. Transfers are accelerated via all RiOS streamlining mechanisms RiOS also provides an optional IPSEC capability to encrypt other data traversing the WAN that is not otherwise protected. To protect data at-rest, RiOS supports AES encryption of the data store inside Steelhead appliances to meet security or compliance regulations. AES-128 has been selected as the U.S. government encryption standard and RiOS can encrypt data stores using AES-128 through AES-256 bit encryption schemes. It is worth noting that the Steelhead data store contains short, unique segments rather than entire files or application objects. This makes it hard for an attacker to recover files from the “ shredded” segments in the data store, even without encryption. The optional encryption of the data store provides an additional level of protection for the most security-conscious organizations.
- This assumes we have seen the page before. When the steelhead has knowledge of the objects on the page, the client side steelhead can request all of the page objects in parallel (including images, scripts, and cascading style sheets). The WAN transfer is optimized by all the traditional RiOS streamlining approaches, dramatically reducing the data sent and minimizing chattiness. If the Steelhead appliance didn’t know about the web page, then it tracks the page and what objects are associated with it so that next time it can accelerate the request further. Note that even if it didn’t ‘know’ what objects to request in parallel, they would still be accelerated by Data Streamlining and Transport Streamlining in the traditional sense. The alternative approach to HTTP acceleration is parse and prefetch (P&P). P&P can only prefetch objects once the HTML page has been delivered, whereas the learning method can prefetch objects without having the page delivered first. The P&P method is useful, but cannot typically build a “tree” of knowledge that not only keeps track of all of the objects on an HTML page, but also keep track of objects embedded within scripts or CSS. The learning method has the capability do all of that. An additional point of confusion is that web browsers will often open multiple TCP connections, thereby making requests in parallel. But typically, they will only open 3 or 4 connections. On top of the penalty required to open these connections, there may be 10 or 20 or more objects on one page. Thus those 4 connections are not sufficient to truly accelerate the transfer of the page. Steelhead appliances can request all the objects at one, providing a much faster response time.
- This is an enhancement to Riverbed’s patented auto-discovery approach. Auto-discovery is key for scaling in large networks and mesh networks, where administrators cannot spend time setting up large numbers of tunnels between sites and appliances. With this enhancement, the need to do manual configuration in multi-hop environments is eliminated. Steelhead appliances will automatically find the ‘right’ appliance to peer with, skipping any appliances in the middle. Previously a manual peering rule would have to be created in this scenario.
- Failover has become an important concern for enterprises who want to ensure always-accelerated performance. Using this new feature, appliances automatically update their datastores to always remain ‘hot’. Thus, if failover occurs, performance does not suffer. Juniper does not even support any type of failover on its WXC line of appliances.