Scalar I500 User's Guide - Quantum scalar i500 User Manual

Scalar i500 User's Guide

To enable host port failover, you must configure target ports 1 and 2 on
the FC I/O blade as point-to-point connections (
). FC I/O blade target ports 1 and 2 must be attached to
Port Configuration
the same SAN fabric to provide host access. The primary active port is
used for host communications, while the passive standby port is kept
idle. In addition, channel zoning must be configured so that target ports 1
and 2 have access to all initiator ports (ports 3–6) (
). If these conditions are not met, an error message will
Channel Zoning
display when you attempt to enable host port failover.
The current feature implementation does not support
Note:
arbitrated loop or target/initiator mode.
Ports on the 4 Gb FC I/O blade used for failover must connect
Note:
to the same SAN fabric.
Note: When both target ports on the FC I/O blade are attached to the
same SAN fabric, you may see duplicate media changer
devices (partitions) being reported. To stop this from
happening, you need to enable host port mapping and
configure host mapping. For more information, see
Configuring Host Mapping
When Fibre Channel port 2 is selected to be the active port in a
Note:
host port failover configuration, the active port can switch to
the default setting, port 1, following a reboot. Reconfigure the
host port failover settings so that the intended port is the
active port.
For information on configuring FC I/O blade ports and channel zoning,
see Configuring FC I/O Blade Ports
Blade Channel Zoning
The library generates a Reliability, Availability, and Serviceability (RAS)
ticket when port failover occurs. Examine the ticket to determine the
reason for the failover. When the failed port is repaired, the port must be
re-enabled to make it available for host port failover as the standby or
active port. For more information, see
Target Port on page 121.
Chapter 3 Configuring Your Library
on page 118.
on page 110 and
on page 111.
Repairing and Enabling a Failed
Working With FC I/O Blades
Setup > FC I/O Blades >
Setup > FC I/O Blades >
Configuring FC I/O
120