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sioc-nfs-perf-vsphere5.pdf
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上传时间: 2011-09-19
详细说明： Datacenters based on VMware’s virtualization products often employ a shared storage infrastructure to service clusters of VMware vSphere hosts. External storage infrastructure such as storage area networks (SANs) and network attached storage (NAS) expose logical storage devices (LUNs) or volumes that can be shared across a cluster of vSphere hosts. VMFS datastores are created on the logical devices whereas volumes using the NFS access protocol can be directly exposed as NFS datastores to the vSphere hosts. Virtual disks are crea ted in these datastores and are assigned to virtual machines (VMs). Consolidating VMs’ virtual disks onto a single datastore backed by a higher number of disks has several advantages—ease of management, better resource utilization, and higher performance (when storage is not bottlenecked). Active VMs can take advantage of periods of inactivity in the shared environment to obtain a higher I/O performance compared to what they would have obtained had they used dedicated datastores backed by fewer disks. ...展开收缩
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