Rescan all hosts for new storage

More of a note for myself really but others may find this useful, to rescan all the hosts (rather than clicking Rescan in the GUI) you can run the following PowerShell command:

For a Specific Cluster:

get-cluster -name “MY CLUSTER” | get-vmhost | Get-VMHostStorage -RescanAllHBA

All Hosts in VC:

get-vmhost | Get-VMHostStorage -RescanAllHBA

3 thoughts on “Rescan all hosts for new storage”

  1. Thanks for the tip, although this makes it slightly easier, it still takes 5 minutes per server to re-scan and since this is a synchronous command, with 10 ESX hosts, this takes 1 hour to run.

    Any idea of a asynchronous way to kickoff a rescan for each host simultaneously?

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