Navigate to Provisioning > File Services > iSCSI, and then click Add Logical Unit. In the Add Logical Unit pane, select the EVS and the file system where you want to create the logical unit. Enter a name (alias) for the logical unit. (Optional) In Comments, enter additional information about the logical unit. The comments box supports a maximum of 255 characters. Select one of the following options to add a data file, and then click Add. To use an existing logical unit, provide the location of the logical unit data file. To create a new logical unit data file, enter a path to the logical unit data file to be created, the new file name, and the file size.