HP StoreEver MSL6480 Tape Library User Manual
Page 35
8 Installing and using Windows advanced path failover
drivers
After the host has been configured and booted, install both the HP tape and the HP changer drivers.
Both the HP tape and the HP changer drivers must be installed before the advanced path failover
drivers are installed. The tape and changer drivers are in the HP StoreEver Tape Drivers for Windows
driver bundle available from
After installation of the tape and changer drivers, use Windows Device Manager to confirm that
all of the configured paths are accessible to the OS. If the example system shown below is used,
there should be two paths to each tape drive and four paths to the tape library. If the expected
number of paths is not available, check the host and SAN configuration. After all of the expected
paths are available to the host, the advanced path failover drivers can be installed.
Installing the Windows advanced path failover drivers
“Application path list ” (page 35)
shows the device handles as presented to a Windows application
when using the advanced path failover driver for the same hardware configuration shown in
“Advanced path failover” (page 11)
. For the drives, both ports are mapped to the same device
handle and one port is active while the other is the standby port. For the library, the two ports on
the first drive are the active and standby ports and two additional ports on a second drive are
passive ports that can be activated in the event of complete connection loss to the drive hosting
the control path.
Table 2 Application path list
Example Logical Unit
Worldwide Identifier
Port
SAN
Path
Device Handle
Addressed
Logical Unit
50:01:10:a0:00:00:00:01
Port A
1
Active
TAPE0
Tape drive 1
50:01:10:a0:00:00:00:01
Port B
2
Standby
50:01:10:a0:00:00:00:03
Port A
1
Active
TAPE1
Tape drive 2
50:01:10:a0:00:00:00:03
Port B
2
Standby
50:01:10:a0:00:00:00:02
Port B
2
Active
CHANGER0
Library controller
50:01:10:a0:00:00:00:02
Port A
1
Standby
Installing the Windows advanced path failover drivers
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