Tag: VAAI
Running VMFS Unmap via PowerCLI
Starting in vSphere 5.5, VMware introduced a new command in the esxcli namespace that allows deleted blocks to be reclaimed on thin provisioned LUNs that support the VAAI UNMAP primitive. You can run the command without any maintenance window, and the reclaim mechanism has been enhanced: Reclaim disk space size can be specified in blocks instead of a percentage value…
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Exploring the performance benefits of VAAI
Over the long Thanksgiving weekend I decided to do some testing of one of the coolest new features in vSphere 4.1 – vStorage APIs for Array Integration. My original thought was to see if the performance benefits of using VAAI would justify more heavily using the eagerzeroedthick VMDK format because of the faster deployment times. I’ll get to the results…
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