Configuring failover for the MSL3040 or MSL6480 ........................... 32
Enabling control path failover...........................................................................................32
Locating the library world-wide node name after enabling basic control path failure ......33
Verifying basic control path failover..................................................................................33
Verifying advanced control path failover.......................................................................... 34
Enabling data path failover...............................................................................................35
Verifying data path failover...............................................................................................36
Configuring failover for other MSL Tape Libraries ........................... 37
Enabling data path port failover....................................................................................... 37
Verifying data path port failover........................................................................................38
Making the standby port be the active port...................................................................... 39
Enabling control path port failover on the library..............................................................39
The “Enable Library Control Path Failover” setting is not selectable............................... 41
Verifying basic control path failover..................................................................................42
Locating the library world-wide node name Configuration requirements after
enabling control path failure ............................................................................................ 42
Installing and using Windows advanced path failover drivers.........43
Uninstalling the drivers................................................................................................................45
Verifying that the tape and changer drivers are correctly installed............................................. 45
Windows driver theory of operation............................................................................................ 46
Driver components........................................................................................................... 46
Device firmware................................................................................................................51
Installing and using Linux advanced path failover drivers...............52
Installing advanced path failover drivers.....................................................................................52
Updating the driver without rebooting......................................................................................... 53
Device files..................................................................................................................................53
Load balancing options for multiple tape drives..........................................................................53
Common characteristics of both load balancing algorithms.............................................53
Full Balancing algorithm...................................................................................................54
Less Balancing algorithm................................................................................................. 54
Setting the load balancing level....................................................................................... 54
Viewing the current driver revision................................................................................... 55
Viewing device status.......................................................................................................55
Setting the preferred path................................................................................................ 56
Rebalancing the paths..................................................................................................... 56
Path rotation exercise function.........................................................................................57
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