Storage

BASIL: Automated IO Load Balancing Across Storage Devices

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Executive Summary

Live migration of virtual hard disks between storage arrays has long been possible. However, there is a dearth of online tools to perform automated virtual disk placement and IO load balancing across multiple storage arrays. This problem is quite challenging because the performance of IO workloads depends heavily on their own characteristics and that of the underlying storage device. Moreover, many device-specific details are hidden behind the interface exposed by storage arrays.

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