Overview of Monitoring and Recovery

Determining Device States

Table 3-3. SCF Object States (page 2 of 2)

State

Substate

Explanation

SERVICING

SPECIAL

The object is being serviced or used by a

 

 

privileged process and is inaccessible to user

 

 

processes.

 

TEST

The object is reserved for exclusive testing.

STARTED

 

The object is logically accessible to user

 

 

processes.

STARTING

 

The object is being initialized and is in transition to

 

 

the STARTED state.

STOPPED

CONFIG-ERROR

The object is configured improperly.

 

DOWN

The object is no longer logically accessible to user

 

 

processes.

 

HARDDOWN

The object is in the hard-down state or is physically

 

 

inaccessible due to a hardware error.

 

INACCESSIBLE

The object is inaccessible to user processes.

 

PREMATURE-

The backup input/output (I/O) process was asked

 

TAKEOVER

to take over for the primary I/O process before it

 

 

had the proper information.

 

RESOURCE-

The input/output (I/O) process could not obtain a

 

UNAVAILABLE

necessary resource.

 

UNKNOWN-

The input/output (I/O) process is down for an

 

REASON

unknown reason.

STOPPING

 

The object is in transition to the STOPPED state.

 

 

No new links are allowed to or from the object.

 

 

Existing links are in the process of being deleted.

SUSPENDED

 

The flow of information to and from the object is

 

 

restricted. (It is typically prevented.) A subsystem

 

 

must clearly distinguish between the type of

 

 

information that is allowed to flow in the

 

 

SUSPENDED state and that which normally flows

 

 

in the STARTED or STOPPED state. In the

 

 

SUSPENDED state, the object must complete any

 

 

outstanding work defined by the subsystem.

SUSPENDING

 

The object is in transition to the SUSPENDED

 

 

state. The subsystem must clearly define the

 

 

nature of the restrictions that this state imposes on

 

 

its objects.

UNKNOWN

 

The object’s state cannot be determined because

 

 

the object is inaccessible.

 

 

 

HP Integrity NonStop NS-Series Operations Guide529869-005

3-15

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HP NonStop NS manual SCF Object States page 2, Servicing Special