NonStop Operating System Event Management Programming Manual
Low-Level I/O Event Messages (ZGIO)
HP NonStop Operating System Event Management Programming Manual—520372-020
3-41
Messages
128: ZGIO-EVT-IIOUCMEDATA
During a write data transfer between memory and a device, an UCME occurred in 
processor memory.
Unconditional Tokens
Cause. A hard memory failure occurred. Either a processor memory control unit has 
failed or there is an error in the processor memory array.
Effect. The data transfer in progress is aborted. Hard memory failure in IOSPACE 
might result in a processor freeze.
Subject: ZGIO-TKN-CHANNEL, ZGIO-TKN-CONTROLLER, and 
ZGIO-TKN-UNIT
Type of event: Device-related or controller-related
Potentially critical event: Yes
Action event: No
Message sender: I/O 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
ZGIO-TKN-CONTROLLER token-type ZSPI-TYP-BYTE
ZGIO-TKN-UNIT token-type ZSPI-TYP-BYTE
ZGIO-TKN-FECODE token-type ZSPI-TYP-BYTE
Event-Message Text
UNCORRECTABLE MEMORY ERROR ON DATA WORD DURING TRANSFER, 
CHAN %channel, CTLR %controller, UNIT %device
Token Description
ZEMS-TKN-EVENTNUMBER Event number for this message. Value is ZGIO-EVT-
IIOUCMEDATA (128).
ZEMS-MAP-EXIOADDR External (physical) I/O address.
ZGIO-TKN-CHANNEL Subject token that specifies the channel affected by this 
event.
ZGIO-TKN-CONTROLLER Subject token that specifies the controller number for the 
event.
ZGIO-TKN-UNIT Subject token that specifies the unit number for the event.
ZGIO-TKN-FECODE File-system error code returned when an invalid command 
is sent to the device.










