Migration from VMware® ESX Server 2.5x to VMware Infrastructure 3
vMigrator
vMigrator provides a powerful tool that can support the upgrade process from ESX Server to VI3, by enabling smooth and seamless migrations to the new platform with minimal downtime even for complex environments.
Moving to Next Generation Virtualization
VMware’s Infrastructure 3 (VI3) offers many new features to enhance the enterprise deployment of server virtualization. However, upgrading ESX Servers with many virtual machines can provide a unique set of challenges. A key change from ESX Server 2.5x to VI3 is that the virtual machine file system and hardware has changed and, as a result, each virtual machine must be migrated to the new format. Migrations can take place by using one of two approaches, both of which involve downtime. The first is to upgrade VI3 components on the hosts and datastores on which they currently reside. The other involves moving virtual machines from a production host running ESX Server 2.5x to ESX Server 3.0. How much downtime for either of these approaches depends on how complex the existing architecture is. Where there are numerous interdependencies among virtual machines, ESX Server hosts and VMFS volumes to support applications, scheduling downtime to allow migrations can become extremely difficult and may require large-scale outages
Keep Your Business Up-and-Running During the Migration Process
A GUI-driven management tool to help ease the migration process and enable companies to leverage the new efficiencies of VI3, vMigrator completes the migration with minimal downtime. The existing production environment can still be used by the workforce, even as individual virtual machines are being replicated and ported to the new production server. During the migration process, the source virtual machine remains intact and unmodified. Because the source retains its integrity until the cutover to the new server is completed, administrators can leverage this feature to support roll-back contingency plans. The destination virtual machine is also migrated in a consistent state, keeping all data intact. This migration process allows downtime to be minimized — even for complex environments — to a simple required reboot at the end of the upgrade process, which can be as little as 60 seconds. A scheduling function allows administrators to control reboots in strict timetables to plan downtime. vMigrator can be used to migrate multiple virtual machines simultaneously and requires no scripting, eliminating manual efforts. Because vMigrator can be used by any level administrator easily, migrations can be handled by any available IT staff.
more info @http://www.vizioncore.com/vMigrator.html
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