NonStop Operating System Event Management Programming Manual

Low-Level I/O Event Messages (ZGIO)
HP NonStop Operating System Event Management Programming Manual—520372-020
3-17
Messages
itself when polled, the controller does not respond to other forms of corrective action
(such as channel reset), or a channel is defective.
Effect. The operating system disables the channel. All input/output (I/O) processes
using that channel switch to their configured backups. Channel-based I/O can no
longer be performed through this processor and channel; however, the processor and
any other channel remain up, and processes can run in the processor.
Recovery. Identify and replace the failing component (controller or channel). To
restore the channel to an operational state, reload the processor. (This action causes
processes running on the processor to stop.) Until the failing controller is replaced, this
error will recur. If the error continues to occur, see Recovery Action Requiring Vendor
Support on page 3-13.
103: ZGIO-EVT-CHANNELRESET
The operating system reset a channel.
Unconditional Tokens
Cause. An excessive number of erroneous I/O or channel interrupts occurred; a failing
controller is connected to the specified channel. Either the controller does not identify
itself when polled, the controller does not respond to other forms of corrective action
(such as disabling the controller or switching the paths), or the channel is defective.
Subject: ZGIO-TKN-CHANNEL
Type of event: Channel-related
Potentially critical event: Yes
Action event: No
Message sender: Monitor process
TMDS collector: Yes
Unconditional Tokens
ZEMS-TKN-EVENTNUMBER token-type ZSPI-TYP-INT
ZEMS-MAP-EXIOADDR definition ZSPI-DDL-EXIOADDR
ZGIO-TKN-CHANNEL token-type ZSPI-TYP-UINT
Event-Message Text
CHANNEL %channel RESET
Token Description
ZEMS-TKN-EVENTNUMBER Event number for this message. Value is ZGIO-EVT-
CHANNELRESET (103)
ZEMS-MAP-EXIOADDR External (physical) I/O address
ZGIO-TKN-CHANNEL Subject token that specifies the channel affected by this
event.