High Availability FailOver/iX Manual (32650-90911)

Monitoring Status

5 Monitoring Status

Failover from the primary path to alternate path is automatic and allows

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 is displayed on the console every five minutes until the

operator replies via the

:REPLY or =REPLY commands.

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 program HASTAT.PUB.SYS, 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)

NOTE

The HASTAT command only reports on Ldevs that are in the HAFOCONF file in

the group from which the system was booted.