IEA306I   dev,chp,I/O ERROR,cm, stat,[sens],[ser]

Explanation

The nucleus initialization program (NIP) issued an I/O request to a device on a channel path. The I/O request included a command that resulted in an unsuccessful I/O completion.

In the message text:
dev
The device number
chp
The channel path identifier
cm
The I/O command that resulted in an unsuccessful I/O completion, if known; otherwise, this field is set to asterisks.
stat
The channel status word (CSW) status bytes
sens
The first two bytes of sense data

The sense data appears only for errors involving a unit check status.

ser
The volume serial number of a direct access storage device (DASD) involved

The volume serial number appears only for DASD.

System action

If the I/O request is critical to the system initialization process, the system issues message IEA304W and enters a disabled wait state. Otherwise, processing continues.

If the device is a console, the system also issues message IEA193I, which indicates the CONSOLxx member that defines the console where the error occurred.

Operator response

This is probably a hardware error. If the system issues message IEA304W, see the operator response for that message and the associated wait state.

If the system does not issue message IEA304A, restart the system and then contact hardware support. Provide the message text.

Source

Nucleus initialization program (NIP)

Module

IEAVNPM3

Routing code

-

Descriptor code

12