This paper discusses the issues related to storage design and management when an IT infrastructure is migrated from a vertically scaled, large SMP architecture to a horizontally scaled server infrastructure-with large numbers of low-cost commodity servers running Linux to deliver industrial-strength processing. A discussion of the storage capabilities of Red Hat Enterprise Linux, including kernel-level, file systems, logical volume management and other features is included, along with an overview of the storage capabilities of Red Hat's ISV partners. The paper concludes with a discussion of the challenges of storage design and management in a horizontally scaled infrastructure, and offers guidance on the best storage management options available to customers planning large-scale Linux deployments.
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