Chapter 10: Path FailoverConfigure Control Path362 Quantum Scalar i6000 User’s Guidehandle all configured partition control paths, select the active controlpath and initiate a control path failover operation in the event thecurrently selected control path fails.Note: The library issues a ticket when control path failover occurs. Inaddition, the library monitors the standby port and issues aticket if the standby port does not report a good Fibre Channellink status.Advanced Control Path: This configuration provides support for onlyIBM LTO-5 and later drives and requires an SNW license. WhenAdvanced Control Path is used, multiple IBM drives can be designated ascontrol path drives with a device driver installed on an attached host.This driver will determine which drive is used as the primary control pathand will choose a new control path drive in the event the primarycontrol path fails.Multi Control Path RequirementsTo configure drives for multi control path, you need the following:• A Storage Networking (SNW) License must be installed on thelibrary (see Enabling Licenses on page 125).• All drives must be licensed for SNW (see License Drives for PathFailover on page 359).• The tape drives must be either IBM and/or HP LTO-5 or later FibreChannel drives.• The tape drives must be connected to an Ethernet Expansion Blade.• The tape drives must NOT be connected to an FC I/O blade.• The tape drive topology must be set to Point-to-Point (seeConfiguring Fibre Channel Drive Speed, Topology, and Loop ID onpage 202).Multi Control Path Configuration1 Access the appropriate screen in one of two ways:
