Planning Live-Migrations to Prepare Servers for Maintenance

Vincent Kherbache 1 Eric Madelaine 1 Fabien Hermenier 2
1 SCALE - Safe Composition of Autonomous applications with Large-SCALE Execution environment
Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués
2 OASIS - Active objects, semantics, Internet and security
CRISAM - Inria Sophia Antipolis - Méditerranée , Laboratoire I3S - COMRED - COMmunications, Réseaux, systèmes Embarqués et Distribués
Abstract : In a virtualized data center, server maintenance is a common but still critical operation. A prerequisite is indeed to relocate elsewhere the Virtual Machines (VMs) running on the production servers to prepare them for the maintenance. When the maintenance focuses several servers, this may lead to a costly relocation of several VMs so the migration plan must be chose wisely. This however implies to master numerous human, technical, and economical aspects that play a role in the design of a quality migration plan. In this paper, we study migration plans that can be decided by an operator to prepare for an hardware upgrade or a server refresh on multiple servers. We exhibit performance bottleneck and pitfalls that reduce the plan efficiency. We then discuss and validate possible improvements deduced from the knowledge of the environment peculiarities.
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Submitted on : Tuesday, December 16, 2014 - 4:34:05 PM
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Vincent Kherbache, Eric Madelaine, Fabien Hermenier. Planning Live-Migrations to Prepare Servers for Maintenance. Euro-Par 2014: Parallel Processing Workshops, Aug 2014, Porto, Portugal. pp.498 - 507, ⟨10.1007/978-3-319-14313-2_42⟩. ⟨hal-01096040⟩

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