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TR3271 EVENT MANAGEMENT
3: ZTR3-EVT-IOBUS-ERR
Volatile Tokens
ZEMS-TKN-CU is a standard EMS token that contains the controller
and unit number.
if the controller uses subchannel-type I/O addressing.
Event-Message Text
In the text message, ldev corresponds to the value of ZEMS-TKN-
LDEV, n,n,%nn,%nnn corresponds to the value of ZEMS-MAP-EXIOADDR,
ldevname corresponds to the value of ZEMS-TKN-LDEVNAME, and file-
err corresponds to the value of ZTR3-TKN-FILE-ERR.
Probable Cause
An I/O-bus error occurred during a data transfer with the
indicated line.
process and aborts all requests.
does not retry the operation once the switch has occurred.
The valid file-system error numbers given by the value file-err
in the text message must be in the range 214 through 229.
values of file-err are as follows:
file-err
214
215
216
217
218
219
220
221
222
223
224
225
For information on these file-system errors, refer to the
System Procedure Errors and Messages Manual .
7-8
This token is present in the event buffer only
The TR3271 subsystem switches to the backup
Meaning
Channel timeout
I/O attempted to absent memory page
Memory breakpoint encountered
Memory parity error
Interrupt timeout
Illegal device reconnect
Protect violation
Controller handshake violation
Bad channel status from EIO instruction
Bad channel status from IIO instruction
Controller error
No unit, or multiple units assigned
Note that the backup process
The
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