You can use the Edit iSCSI Service Configurations dialog box to change an iSCSI alias. An iSCSI alias is a string of 1 to 128 printable characters, and cannot include spaces.
Steps
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Click Configuration > Protocols > iSCSI.
3.
If the appropriate tab is not displayed, click the Service tab.
4.
Click Edit.
5.
Change the iSCSI alias in the Target Alias field and click OK.