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1. Tape drive Ethernet ports are connected to the private network for the Data Verification feature.
2. Library DIAG port is connected to the private network for the Data Verification feature.
3. Library Ethernet port is connected to the site LAN to provide user access through the RMI.
3. Using Ethernet cables, connect each tape drive that will be used for Data Verification to the switch.
4. Regardless of whether you are using a dedicated switch or a VLAN for the data verification network,
ensure that only the drive Ethernet ports and the DIAG port are connected to the private network, and
that no other hosts or devices are sharing the network.
5. Verify that the tape drive SAS or FC ports are NOT connected.
Path failover features
The library supports data path failover and control path failover with LTO-6 and later generation tape
drives.
•
Data path failover—Both tape drive ports are connected to the SAN. Only one of the ports is used at
any one time and the second port is a standby port. When a link failure on the active port is detected,
the second port is used. Data path failover requires a dual-port drive.
•
Control path failover—Depending on the drive, one or both ports on the control path drive are
configured to present a path to the library controller and a second drive is configured as a standby
library control path drive.
Path failover implementations
Path failover uses features built into the library and tape drive firmware and also use operating system
drivers. The library supports two path failover implementations, which are presented in the library user
interface as:
•
Advanced failover
◦
Is only supported with LTO-6 FC tape drives.
◦
Requires host driver features, along with tape drive and library firmware features.
◦
Manages multiple paths across multiple SANs, presents a single drive or library path to
applications, and transfers commands automatically to the new path if the original path is lost.
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Path failover features
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