IBM TS2340 User Guide - Page 65

Automatic Dump Facility, Trace Facility

Page 65 highlights

AIX Device Driver (Atape) For FCP or SAS adapters, this is the adapter_status code as defined in /usr/include/sys/scsi_buf.h: 01 HOST IO BUS ERROR - Host I/O bus error during data transfer. 02 TRANSPORT FAULT - Failure in the transport layer. 03 COMMAND TIMEOUT - Command timed out before completion. 04 NO DEVICE RESPONSE - Target did not respond to attempts to select it. 05 ADAPTER HARDWARE FAILURE - Adapter indicated a hardware failure. 06 ADAPTER SOFTWARE FAILURE - Adapter indicated a microcode failure. 07 WW NAME CHANGE - Adapter detected a new worldwide name for the device. 08 FUSE OR TERMINAL PWR - Blown terminator fuse or bad termination. 09 TRANSPORT RESET - Adapter detected an external SCSI bus reset. 0A TRANSPORT BUSY - The transport layer is busy. 0B TRANSPORT DEAD - The transport layer is currently inoperative. ss If byte gg indicates a check condition, the ss byte is the sense data from the device. Refer to the appropriate device reference manual for the specific format and content of these bytes. Automatic Dump Facility The device driver provides an automatic dump facility for devices that support reading a dump and indicating when a dump is available in device sense data. Whenever a check condition occurs and the sense data indicates that a dump is available, the device driver reads the dump from the device and stores it in the /var/adm/ras directory. A maximum of three dumps for each device are stored in this directory as: Atape.rmtx.dump1 Atape.rmtx.dump2 Atape.rmtx.dump3 Note: X is the device number, for example, rmt0. When the device is first configured, the dump name is set to dump1. If more than three dumps occur, the driver starts over at dump1; therefore the last three dumps are always kept. Trace Facility The AIX trace facility is supported for the device driver. The trace event is identified with a hookword. The hookword used by the device driver is 326. The trace can be initiated at any time before an operation on a tape device. Enter the following AIX command to start the trace: trace -a -j 326 This command starts the trace in the background and collects only the trace events with the 326 hookword (Atape device driver). Enter the following AIX command to stop the trace: trcstop Chapter 3. AIX Tape and Medium Changer Device Driver 47

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For FCP or SAS adapters, this is the adapter_status code as defined in
/usr/include/sys/scsi_buf.h
:
01 HOST IO BUS ERROR - Host I/O bus error during data transfer.
02 TRANSPORT FAULT - Failure in the transport layer.
03 COMMAND TIMEOUT - Command timed out before completion.
04 NO DEVICE RESPONSE - Target did not respond to attempts to
select it.
05 ADAPTER HARDWARE FAILURE - Adapter indicated a hardware
failure.
06 ADAPTER SOFTWARE FAILURE - Adapter indicated a microcode
failure.
07 WW NAME CHANGE - Adapter detected a new worldwide name
for the device.
08 FUSE OR TERMINAL PWR - Blown terminator fuse or bad
termination.
09 TRANSPORT RESET - Adapter detected an external SCSI bus reset.
0A TRANSPORT BUSY - The transport layer is busy.
0B TRANSPORT DEAD - The transport layer is currently inoperative.
ss
If byte
gg
indicates a check condition, the
ss
byte is the sense data from the
device. Refer to the appropriate device reference manual for the specific
format and content of these bytes.
Automatic Dump Facility
The device driver provides an automatic dump facility for devices that support
reading a dump and indicating when a dump is available in device sense data.
Whenever a check condition occurs and the sense data indicates that a dump is
available, the device driver reads the dump from the device and stores it in the
/var/adm/ras
directory. A maximum of three dumps for each device are stored in
this directory as:
Atape.rmtx.dump1
Atape.rmtx.dump2
Atape.rmtx.dump3
Note:
X
is the device number, for example,
rmt0
.
When the device is first configured, the dump name is set to
dump1
. If more than
three dumps occur, the driver starts over at
dump1
; therefore the last three dumps
are always kept.
Trace Facility
The AIX trace facility is supported for the device driver. The trace event is
identified with a
hookword
. The hookword used by the device driver is 326. The
trace can be initiated at any time before an operation on a tape device.
Enter the following AIX command to start the trace:
trace -a -j 326
This command starts the trace in the background and collects only the trace events
with the 326 hookword (
Atape
device driver).
Enter the following AIX command to stop the trace:
trcstop
AIX Device Driver (Atape)
Chapter 3. AIX Tape and Medium Changer Device Driver
47