monIOController

Description

Provides information about I/O controllers.

You need not enable any configuration parameters for this monitoring table to collect data.

Columns

The columns for monIOController are:

Name

Datatype

Attributes

Description

InstanceID

int

(Cluster environments only) ID of an instance in a shared-disk cluster.

ControllerID

int

ID of the I/O controller

KTID

int

ID of the kernel task

EngineNumber

int

Engine that owns this controller

BlockingPolls

bigint

Counter

Number of blocking polls

NonBlockingPolls

bigint

Counter

Number of nonblocking polls

EventPolls

bigint

Counter

Number of polls returning an event

NonBlockingEventPolls

bigint

Counter

Number of nonblocking polls returning an event

FullPolls

bigint

Counter

Number of polls returning the maximum number of events

Events

bigint

Counter

Number of events polled

EventHWM

bigint

Counter

Highest number of events returned in a single poll

Pending

int

Counter

Number of pending I/O operations

Completed

bigint

Counter

Number of completed I/O operations

Reads

bigint

Counter

Number of read or receive operations

Writes

bigint

Counter

Number of write or send operations

Deferred

bigint

Counter

Number of I/O operations deferred or delayed

Type

varchar(30)

I/O controller type