Chapter 4: Configuring the LibraryConfiguring Tape Drive ParametersQuantum Scalar i40 and Scalar i80 User’s Guide 65Configuring Tape Drive ParametersYou can configure Fibre Channel tape drive loop ID, topology, and speedusing the operator panel or the Web client. On the Web client, you canalso view the actual topology and speed, plus the tape drive’s world-wide node name (WWNN) and other information about the tape drives.You cannot configure SAS tape drive settings. A SAS tape drive’s SASaddress is automatically and uniquely generated based on a uniqueWorld Wide Name (WWN) that the drive receives when it is configured.You can view SAS tape drive settings (but not change them) on the Webclient.Note: If the affected partition is online, it will be taken offline beforethe parameters are set, and brought back online after they areset.Table 4 Fibre Channel TapeDrive Configurable Settings Setting DescriptionLoop ID A unique loop ID is selected by default for all FC tapedrives installed in the library. For example, the tapedrive installed in the top drive bay is assigned adefault loop ID of 61. The tape drive installed in thebottom drive bay is assigned a default loop ID of 63.If you change the default loop IDs, make sure each FCtape drive with a topology setting of Auto (LN), Loop(L), or Auto (NL) has a unique loop ID.RequestedTopology*The requested topology connection mode can be setto one of the following:• Auto (LN) — Auto-configure trying L-Port first• Loop (L) — Force L-Port• Point to Point — Force N-Port• Auto (NL) — Auto-configure trying N-Port first(default)
