High Availability FailOver/iX Manual (32650-90911)

Product Description
Components
Components
The HAFO product has multiple components:
• System Boot Failover Initialization Utility
• SYSGEN HAFO commands
• HASTAT HAFO status report
• HAFOCONF configuration file
Each of these components are briefly described.
System Boot Failover Initialization Utility
During system boot, the HAFO configuration utility reads the HAFOCONF
configuration file and arms HAFO. This configuration information is then
frozen into memory and is accessible to the MPE/iX I/O subsystems when a
HAFO event is detected.
High Availability Failover Commands
The following commands are used to configure and maintain the HAFOCONF
configuration file
• ADDCONF
(ad) — adds high availability device configuration
•
DELCONF
(de) — deletes high availability device configuration
•
LISTCONF
(li) — lists high availability device configurations
•
DOHA
— validates high availability device configurations, and activates the
HAFO configuration
•
GONEXT
(go) — instructs device manager to switch to the inactive path.
Typically used to switch back to the primary path to recover from a failure
but can be used to switch temporarily to the alternate path during primary
path maintenance.
•
STATUS
(st) — displays primary and alternate path status.
•
HELP
— get help on HAFO commands
•
EXIT
— exit the "ha" section and return to the "io" section of SYSGEN.
These commands, located in SYSGEN, are documented in Chapter 4,
"Configuration."
GONEXT
is documented in more detail in Chapter 6,
"Recovering From a Failover."
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