When specifying the -WorldWideNames parameter, since it expects an array, do it like this:

New-SCServer -Connection $SCConn -Name "server5" -WorldWideNames "{2001B8CA3A0A1D8A,2001B8CB2A039DC5}" -SCOSType $SCOSType

Then it should work.

Good Luck!

Can you post your code that you used?  Make sure you have quotes around the brackets which contain the parameter array values:

-WorldWideNames "{2001B8CA3A0A1D8A,2001B8CB2A039DC5}"

Thank you for your answer, I've tried that but I have the same warning:

World Wide Name [{2001B8CA3A0A1D8A,2001B8CB2A039DC5}] does not appear to be in the correct format.

This WWN will not be included in the server definition. Correct the format and use Add-SCServerPort to include it

If I use the following command it works ok and will create a server with a single HBA

New-SCServer -Connection $SCConn -Name "server5" -WorldWideNames "2001B8CB2A039DC5" -SCOSType $SCOSType

New-SCServer -Connection $SCConn -Name "Servername" -WorldWideNames "{2001B8CA3A0A1D8A,2001B8CB2A039DC5}" -SCOSType $SCOSType

WARNING: World Wide Name [{2001B8CA3A0A1D8A,2001B8CB2A039DC5}] does not appear to be in the correct format. This WWN will not be included in the server definition. Correct the format and use Add-SCServerPort to include it

A couple of options ... Save your WWNs into an array variable:

$wwns = @("2001B8CB2A039D14", "2001B8CB2A039D15")

New-SCServer -Connection $conn -Name "MyServer" -WorldWideNames $wwns

or do it in-line...

New-SCServer -Connection $conn -Name "MyServer" -WorldWideNames @("2001B8CB2A039D14", "2001B8CB2A039D15")

Thanks