Using PowerCLI you can use Set-ScsiLun -MultipathPolicy “RoundRobin” to set the PSP, but I found it quite slow using it on a large scale. It would update one datastore on one host every 5 seconds. If there were 10 ESXi hosts with 200 Datastores, that’s 2000 operations, at 5 seconds each, it adds up to 3 hours. The same …

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