Manual

Enabling data path failover.................................................................................................29
Verifying data path failover.................................................................................................30
7 Configuring failover for other HP StoreEver MSL Tape Libraries.......................31
Configuring data path port failover...........................................................................................31
Enabling data path port failover..........................................................................................31
Verifying data path port failover..........................................................................................31
Configuring basic control path failover......................................................................................32
Enabling control path port failover on the library....................................................................32
Configuration requirements after enabling control path failure..................................................34
Verifying basic control path failover......................................................................................34
8 Installing and using Windows advanced path failover drivers.........................35
Installing the Windows advanced path failover drivers.................................................................35
Downloading and installing the drivers.................................................................................36
Uninstalling drivers.............................................................................................................36
Windows driver theory of operation..........................................................................................36
Driver components.............................................................................................................37
Storage bus filter driver..................................................................................................38
Multi-path intermediate class driver..................................................................................38
Device manager view....................................................................................................40
Device firmware.................................................................................................................42
9 Installing and using Linux advanced path failover drivers...............................43
Installing advanced path failover drivers....................................................................................43
Updating the driver without rebooting.......................................................................................43
Device files............................................................................................................................43
Command line user interface....................................................................................................43
Viewing the current driver revision........................................................................................44
Viewing device status.........................................................................................................44
Setting the preferred path....................................................................................................45
Path rotation exercise function..............................................................................................46
Enabling advanced path failover on a device while the driver is running........................................46
Disabling advanced path failover on a device while the driver is running.......................................46
Linux driver theory of operation................................................................................................46
10 Installing and using HP-UX advanced path failover drivers............................47
Installing advanced path failover drivers....................................................................................47
Commands for viewing tape and library devices connected to a system.........................................47
Finding the lockdown path.......................................................................................................50
Troubleshooting advanced path failover.....................................................................................50
Enabling or disabling advanced path failover............................................................................50
11 Troubleshooting failover operation.............................................................52
Locating a failed path.............................................................................................................52
Windows debugging logs and tools..........................................................................................53
Confirming failover operation..............................................................................................53
Windows system log..........................................................................................................53
Diagnostic application........................................................................................................54
Operation....................................................................................................................54
Actions........................................................................................................................56
Diagnostic dumps..............................................................................................................58
Memory dump setup......................................................................................................59
Driver debug dump setup...............................................................................................59
Bug checks...................................................................................................................59
Hangs.........................................................................................................................59
Linux logs and troubleshooting tools..........................................................................................59
4 Contents