Discover storage on the host
After assigning volumes to the host, you perform a rescan so that the host detects and configures the volumes for multipathing.
By default, an ESXi host automatically performs a rescan every five minutes. A volume might appear between the time you create it and assign it to a host, before you perform a manual rescan. Regardless, you can perform a manual rescan to ensure all volumes are configured properly.
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Create one or more volumes and assign them to the ESXi host.
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If using a vCenter Server, add the host to the server's inventory.
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Use the vSphere Client or the vSphere Web Client to connect directly to the vCenter Server or to the ESXi host.
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For instructions on how to perform a rescan of the storage on an ESXi host, search for the VMware Knowledge Base article on this topic.