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VMware ESX Server in the Enterprise: Planning and Securing Virtualization Servers by Edward L. Haletky

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Chapter 6. Effects on Operations

ESX creates a myriad of problems for administrators, specifically problems having to do with the scheduling of various operations around the use of normal tools and other everyday activities such as deployments, VMotion to balance nodes, and backups. Most, if not all, the limitations revolve around issues related to performance gathering and the data stores upon which VMs are placed, whether SCSI, including iSCSI, or non-VMDK files accessed from NFS shared off a NAS or some other system.

The performance-gathering issues dictate which tools to use to gather performance data and how to use the tools that gather this data. A certain level of understanding is required to interpret the results, and this knowledge will ...

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