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[flawless_cowboy]

Does anyone know how to add an extent via powershell? I have searched around for a bit but come up empty.

[esarakaitis]

ill do some digging, but i know of no way to do it as of now

[ewannema]

In general you would only modify a datastore once and then possibly do a refresh on all of the other hosts.  Adding the extent itself through PS might be more work than it is worth because you have to make sure to pick the correct available LUN, etc.

The refresh itself should be easier to script.

If you want to dig into the SDK and to add an extent you may want to look at the ExtendVmfsDatastore method.  Here is how you would get to the HostDatastoreSystem object.

$vmhost = Get-VMhost esx
$vmhostview = Get-View $vmhost.ID
$dss = Get-View $vmhostview.ConfigManager.DatastoreSystem

[ewannema]

I guess I could show the refresh.

$vmhost = Get-VMhost esxhost
$vmhostview = Get-View $vmhost.View
$hss = Get-View $vmhostview.ConfigManager.StorageSystem
$hss.RefreshStorageSystem()

$hss.RescanAllHba() # This is there as well if you want to do that.