Virtualization delivers great benefits for IT shops; however, it is plagued with the same performance issues that affect physical servers. These problems arise from the fact that in virtualized systems there are multiple instances of Windows server competing for the resources on a single host and multiple hosts connected to a SAN. Windows itself is the origin of many of these I/O congestion, disk latency and throughput problems. The Windows file system is notorious for creating lots of small I/O, which increases SCSI traffic across the storage stack, clogs queues and increases physical disk I/O. VMware never touches the Windows guest system, but it must deal with the workload it produces.
This paper describes how Windows creates the problems and how to address these issues at their source; it discusses how to proactively manage and resolve virtualization performance problems.
To read more, download whitepaper: Fixing Disk Latency and I/O Congestion to Improve Slow VMware Performance
Download Whitepaper: Fixing Disk Latency and I/O Congestion to Improve Slow VMware Performance