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Subversion MultiSite:

► Peer-to-peer architecture with no single point of failure.

• Not master-slave or multi-master.

► Subversion repositories connected over aWAN synchronize automatically with eachwrite operation.

► Developers at all locations experience LAN speed performance for both read and write operations.

► Built-in hot backup and automated disaster recovery features make third party solutions completely unnecessary.

► Transparent implementation doesn’t change Subversion’s behavior, so there’s no retraining.

The Application

For IT Organizations:

► Administrative overhead:

• Performing backups and other routine maintenance

• Maintaining system availabilityand dealing with disaster recovery

• Manually applying patches and performing upgrades

► Third party components add to the complexity

• Operating systems

• Databases

• Web Servers

• Plug-ins

The Challenges

► Distributed environments compound these

challenges.

► Projects take longer to complete

► Time to market delays lead to lost revenue

The Challenges

For ISVs:

► Longer development cycles.

► Software vendors have to restrict the list of supported platforms.

• No software vendor can QA every newrelease on every platform.

• This can limit an ISVs potential market.

► Added support burden

► Longer sales cycles

The Challenges

► Hosted Software as a Service (SaaS) can address some of these challenges:

• Deployment is immediate.

• Maintenance and support is handled primarily by the SaaS vendor.

► However, some enterprise applications may not be a fit for the SaaS model:

• Applications that require heavy customization.

• Applications that need to integratewith legacy in-house systems.

► A hybrid delivery model is emerging thatcombines SaaS with software appliances.

► WANdisco will soon be offering a hybrid solution leveraging Amazon’s EC2.

The Challenges

Product Delivery as a Software Appliance:

► Removes cost and complexity by eliminating environmental dependencies.

► Combines zero-latency deployment of SaaS with flexibility, control and security of behind the firewall solutions.

► Up and running in 2 minutes!!

► Update server provides latest patches and upgrades automatically to all sitesupon request.

• Eliminates risk from inconsistent manual processes.

The Solution

► WANdisco packages the appropriate build for each customer’s vm containing all of the components:

• WANdisco’s Subversion MultiSite

• Apache

• Subversion

• JeOS (rPath Linux)

• Interfaces with different VM environments

• Provides everything for ISO deployment

► Subversion MultiSite can be deployed at locations where there’s no staff to support any of the components.

The Solution

► All of the components are preconfigured for optimal performance:

• Apache Web Server is preconfigured for Subversion MultiSite only, unlike many standard implementations.

► rPath’s JeOS has a smaller footprint and consumes fewer resources than a standard Linux OS:

• Stripped down version of Linux tuned just for Subversion MultiSite and the VM.

• Eliminates unneeded Linux components that support a broad range of applications and hardware.

► Many VMs now provide direct access from JeOS to the hardware via device drivers.

• Removes virtualization overhead.

The Solution

► Download MultiSite.vmx file from WANdisco.

► Just load the file into a virtual machine directory on a server at each site.

► The Subversion MultiSite Software Appliance becomes a guest operating system on the host server at each site.

► Each instance of the Subversion MultiSite Software Appliance has its own unique IP address.

Deployment

Demo

► Removes cost and complexity from deploying and maintaining enterprise applications byeliminating environmental dependencies.

► Requires no tradeoffs in terms of Subversion MultiSite’s functionality or performance.

► Fully supported Just Enough Operating System (JeOS) based on Linux delivers everything needed for deployment under a VM, or on industry standard hardware.

► Available for any target virtualization environment including VMware ESX, Citrix XenServer, and Windows with Hyper-V.

► Automatic updates for all appliance components, including Subversion, Apache and WANdisco eliminate manual upgrades and patches.

Summary