Redundant Controller
10-19
10.3 Configuration
Listed below are steps necessary for configuring a redundant controller
system:
1. Configure, separately, each controller in the "Autoconfig" mode. When
two controllers are powered on later, firmware will determine which is
the Primary controller.
2. If a channel is used as the communications channel, firmware will display
channel status as "RCCOM (Redundant Controller Communications)."
This channel will then be excluded from the use of host/drive connection.
3. When powering on both controllers together, LCD will display "RC
connecting." After the controller negotiation is completed, the
communications between controllers should be established.
4. Configure your SCSI/Fibre channels as host or drive. The default
configuration for SCSI channel termination is "enabled." Please refer to
Appendix D of your controller Hardware Manual and examine whether
the termination jumpers on controller backplane are shunted. If the
associated jumpers are shunted, SCSI channels will be terminated on the
controller side no matter firmware setting is "enabled" or "disabled."
5. Create both a "Primary ID" and a "Secondary ID" on every drive channel.
6. Reset controller for the configuration to take effect.
7. Create Logical drives/logical volumes and assign each logical unit to the
Primary or to the Secondary controller.
8. Proceed with Host LUN mapping. After mapping each logical unit to a
Primary or Secondary ID/LUN on the host channel(s), the redundant
controller configuration is complete.
