White Papers

An Analysis of Disk Performance in VMware ESX Server Virtual Machines

Category: IT Management, Networking and Communications

Overview VMware ESX Server is a software platform that efficiently multiplexes the hardware resources of a server among virtual machines. This paper studies the performance of a key component of the ESX Server architecture: its storage subsystem. The authors characterize the performance of native systems and virtual machines using a series of disk microbenchmarks on several different storage systems. It is shown that the virtual machines perform well compared to native, and that the I/O behavior of virtual machines closely matches that of the native server. The paper then discusses how the microbenchmarks can be used to estimate virtual machine performance for disk-intensive applications by studying two workloads: a simple file server and a commercial mail server.

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Publisher: Institute of Electrical and Electronics Engineers
File Format: PDF
Date Published: Sep 23, 2006
Format: White Papers
Topics: File and Network Servers, Server Consolidation

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