AppZero A Briefing Note By Lori Macvittie AppZero A Briefing Note by Lori Macvittie Company: AppZero (www.appzero.com) Market: Application Migration Products: AppZero Cloud Summary: AppZero focuses on enabling application migration in inter-‐IaaS scenarios. Its zapp migration technique focuses on m igration at the application layer rather than at the virtual m achine layer as per most alternative solutions. AppZero technology is designed to manage migration of applications in federated cloud environments as well as on-‐boarding enterprise applications to public cloud computing environments
AppZero A Briefing Note By Lori Macvittie Market Overview The market for Application Migration is just beginning to emerge into an evolving state as cloud adoption of packaged applications becomes a key focus for enterprise customers. There are two primary approaches to migration of existing applications with varying technology approaches to achieving migration: 1. Virtual Machine migration a. Wholesale VM migration b. Shim-‐based migration 2. Application migration a. SI / manual migration b. Toolsets c. Standards The market is dominated by wholesale VM migration methods as it remains the least complex. Application migration via toolsets is gaining mindshare due to its ability to transcend not only cloud environments but hypervisor dependencies, allowing a wider selection of and greater mobility between providers. SI and manual migration has been the primary mechanism through which non-‐native, existing applications are moved from enterprise to cloud due to incompatible hypervisor foundations as well as requirements in some cases to adapt existing applications to a cloud environment. Standards are, at this juncture, non-‐existent with the exception of OASIS CAMP (Cloud Application Management for Platforms) which has only recently been proposed for consideration. Though its supporters are non-‐trivial, it remains to be seen whether the specification will survive the standards process or whether a niche-‐filling technology will fill the hole it is designed to address in the interim. AppZero Overview AppZero has chosen to focus on migration of applications irrespective of hypervisor foundations. Its technology is able to selectively migrate processes and daemons for an application from one IaaS environment to another. This process is manual and requires knowledge specific to the application to ensure all dependent processes are included. Migration is currently limited to migration between similar operating systems and specifically excludes support for Microsoft SharePoint and Exchange. Migration further requires shutdown of the application which disallows live migration, eliminating the possibility of leveraging the tool for just-‐in-‐time cloud bursting architectures. The wrapper used by AppZero to migrate the application can be dissolved upon successful migration, ensuring no reliance on shims or agents post-‐migration.
AppZero A Briefing Note By Lori Macvittie Advantages -‐ Requires less bandwidth than inter-‐environment virtual machine migration -‐ Immune to latency-‐based restrictions on virtual machine migration -‐ Non-‐disruptive to existing architecture -‐ Time to migrate reduce to minutes instead of hours or days Disadvantages -‐ Potential for boomeranging infected / hijacked processes -‐ Restriction on inter-‐OS migration eliminates ability to migrate aging OS-‐dependent applications off-‐premise -‐ Reliance on manual selection of appropriate processes / daemons introduces potential for mistakes Summary AppZero’s approach is relatively unique within the broader Application Migration market and brings with it promising opportunities for customers to realize a federated cloud ecosystem as well as enabling pre-‐positioning of applications in public cloud environments in support of seasonable elasticity requirements.