Chapter 10: Path Failover
Configuring Data Path Failover
Quantum Scalar i6000 User’s Guide 379
for media changer commands unless a failover occurs. Once failover
occurs, the host uses Port 2 until failover occurs again or the library is
rebooted.
A tape drive can be configured for both advanced data path failover and
advanced control path failover. If both are configured, the control path
will not fail over to another tape drive unless both ports on the control
path tape drive fail.
Basic Data Path Failover Requirements
To configure a tape drive for basic data path failover, you need the
following:
• The library must have a Storage Networking license installed.
• The tape drive to be configured for data path failover must be
licensed for storage networking (see
License Drives for Path Failover
on page 359.
• The tape drive must be an LTO-5 or higher Fibre Channel tape drive.
• The tape drive must be connected to an Ethernet Expansion Blade
(EEB) via an Ethernet cable.
• Both tape drive fibre ports MUST be connected to the same FC
switch.
• Neither FC port on the drive may be connected to a FC I/O blade.
• The tape drive topology settings must be set to Point to Point (see
Configuring Fibre Channel Drive Speed, Topology, and Loop ID on
page 202).
Enabling/Disabling BDPF
To enable or disable data path failover functionality:
1 From the main console, select Setup > Drives > Access > Data
Path Failover. Or, via the SNW Wizard: Select Setup > SNW
Wizard. Click Next. From the options screen, select Data Path
Failover and click Next.
The Data Path Failover (DPF) dialog box appears. Drives with BDPF
configured have check marks in the BDPF column.
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