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Table of Contents
  - Failver Status Report
 
  - Failover Status Descriptions
 
  
    - Array Failure
 
    - Failover Failed
 
    - GOBack Started
 
    - Not HAFO dev
 
    - Ready
 
    - Unknown Failure
 
    - Unknown Status
 
    
 
Failover is automatic and will allow applications to continue uninterrupted.
In the event of failover, repeated warnings appear on the system
console indicating a failover event has occurred. The warning specifies
which high availability array ldev has experienced a failover event.
  HIGH AVAILABILITY FAILOVER IS STARTED FOR LDEV# IN DISK ARRAY.
  NO DATA LOSS OR CORRUPTION.
  SYSTEM OPERATION WILL CONTINUE.
  PLEASE PLACE SERVICE CALL SOON.
  ACKNOWLEDGE HAFO FAILOVER IN DISK ARRAY FOR LDEV# (Y/N)?
 
The warning message will be displayed on the console every five minutes until
the operator does a [CTRL-A] reply. In addition to the console warning
message, a failover generates entries in the I/O and system logs.
    
The HAFO console message allows you to monitor the failure event. There is also
a new command HASTAT, that allows you to display status for all HAFO
configured ldevs at anytime. HASTAT displays the following information:
    
      LDEV # of arrays configured for failover  
      Primary and alternate path information  
      Status of primary and alternate data path for doing I/O (failover
          and possible cause of data path failure)  
     
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NOTE: The HASTAT command only reports on ldevs that are in the
HAFOCONF file in the group from which the system was booted.
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