HP-UX I/O Subsystem EVM Events

5.3 Health Property Modify Event
The health property of an I/O node denotes the state of the node as defined by the subsystem that manages
this node (for example, the driver). The values that the health property can take are:
Online The I/O node is online and is ready to issue or receive I/O tranfers.
Offline The I/O node is offline and cannot be accessed.
Limited The I/O node is operating in a performance degraded (sub-optimal) state. For
example, an aggregate group (LUN or an iscsi session) has one of its links offline
and one or more lunpaths to a LUN are offline.
Unusable An error condition has occurred that requires manual intervention. Examples
include authentication failure and hardware failure.
Testing The I/O node is in a diagnostic mode.
Disabled The I/O node is disabled or suspended.
Standby The I/O node is functionally online but is not in use and is ready to serve as a
standby in case of failure of the active in-use I/O node.
The following EVM event is generated when the health property of the I/O node is modified:
Event Full name
sys.unix.io.health.value._class.ccc._instance.iii._cim.HP_EVMEvent
Indication
Standard data:
Event: Name sys.unix.io.health.value
Priority: 200
Format: "The health property of I/O node(name = $node_name) has
been changed”
Variable Data:
node_name type STRING value “”
_class type STRING value “”
_instance type UINT64 value 0
_cim type STRING value “”
hw_attr type EvmTYPE_OPAQUE
hw_path type STRING value “”
Example: When an I/O node is deleted using rmsf, one of the events generated is a health property
change event. In this case the health property of the node is changed to Offline.
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