Chapter 4

System Configuration Control

4.1 DEVICE STATUS

System configuration control manages the device status for the devices (central subsystem units and peripheral devices).

The central subsystem units of SX-4 include CPU(CPxx), MMU(MMxx), XMU(MSXx), IOP(PCIxx), HIPPI channel(CHxx), CHE(PCIxx), SCSI channel / FDDI channel (PCxxx) and AOC(AOxx).

The central subsystem units of SX-5 include CPU(CPxx), MMU(MMxx), IOP(PCIxxx), HIPPI channel / FCP channel / SCSI channel / FDDI channel / Ethernet channel (PCxxx), and AOC(AOxx).

The peripheral devices include devices under IOX (Input/Output Multiplexer), HIPPI devices (e.g., RAID) and directly-connected SCSI/FCP devices. For details on these devices, refer to the System Administrator's Guide.

There are three types of device status managed by the system configuration control: normal connection status (online), abnormal connection status (unavailable), and off status (offline). The three device status types are shown in Figure 4-1.

Figure 4-1 Device Status

Legend

Permanent failure of device or command entry
Command entry
Command entry
Command entry
Command entry
Command entry

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4.2 DISCONNECTING A DEVICE AS A RESULT OF FAILURE

A device may be disconnected as a result of a failure. This occurs when the central subsystem error handling or the driver of a peripheral device detects a failure in hardware. In this case, the device enters the abnormal connection status (unavailable).

In this status, input/output by each peripheral device driver cannot be performed.

4.3 DEVICE CONNECTION AND DISCONNECTION BY COMMAND

A command can be used to connect and disconnect devices other than the CPU and MMU.

By using a command, a device can be placed in the normal connection status (online), abnormal connection status (unavailable), or off status (offline).

Use the devconf(1M) command for central subsystem units. For peripheral devices, use the ioconf(1M) command. For details on the commands, refer to the System Administrator's Reference Manual.

4.4 HARDWARE FAILURE LOG

A failure log is recorded when a hardware failure occurs.

There are two types of failure logs: the SVP log recorded by hardware (firmware) and the error log recorded by software. This section, however, does not explain the SVP log. The error log recorded by software is stored in the error log file (/usr/adm/errfile).

Hardware failures in the devices under the Input/Output Multiplexer (IOX) are recorded by the IOX.

Table 4-1 lists the timing and priority of error log collection.

Table 4-1 Error Log Collection Timing

Error Log Collection Timing Priority

Start log 1

IOP/HIPPI failure log 3

Device failure log
Software retry failed after I/O abnormal termination
I/O termination timeout detected 4

Connection by system configuration control failed
Software retry succeeded after I/O abnormal termination
Report of successful hardware retry 5

Debug information (trace information collected by each device driver) 6

Error Log Collection Timing	Priority
Start log	1
IOP/HIPPI failure log	3
Device failure log Software retry failed after I/O abnormal termination I/O termination timeout detected	4
Connection by system configuration control failed Software retry succeeded after I/O abnormal termination Report of successful hardware retry	5
Debug information (trace information collected by each device driver)	6

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4.4.1 Editing Error Log

A banner (4-digit hexadecimal number) is assigned to each error log information to identify the error log content. Table 4-2 lists banners and corresponding devices (information).

Table 4-2 Error Log Banners

Banner Device (Information)

1xxx
1001
1010 CPU central subsystem unit and XMU
XMU
IXS

4xxx
4010
4011
4012
4020
4060
4061
4062
4063
4070
4071
4072
4090 Log information from device driver
Disk array (AD)
IPI
HIPPI tape unit (HMT)
Third-party driver
SCSI channel
FDDI channel
FCP channel
Ethernet channel
Directly-connected SCSI disk unit
Directly-connected SCSI tape unit
Directly-connected SCSI media changer unit
HIPPI

7000 Debug information

8xxx
8000 System configuration control
System configuration control

0001 Start log

Banner	Device (Information)
1xxx 1001 1010	CPU central subsystem unit and XMU XMU IXS
4xxx 4010 4011 4012 4020 4060 4061 4062 4063 4070 4071 4072 4090	Log information from device driver Disk array (AD) IPI HIPPI tape unit (HMT) Third-party driver SCSI channel FDDI channel FCP channel Ethernet channel Directly-connected SCSI disk unit Directly-connected SCSI tape unit Directly-connected SCSI media changer unit HIPPI
7000	Debug information
8xxx 8000	System configuration control System configuration control
0001	Start log

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4.4.2 Error Log Output Information

Output images and information for the error logs output by the errpt command are listed next. Refer to the SUPER-UX System Administrator's Reference Manual for details.

XMU (1001)

unit: xxxx (xxxx)   ldn:  xxxxxxxx     logging date: xx-xx-xx time: xx:xx:xx
hardware message
banner: xxxx   status word:xxxxxxxx    xxxxxxxx    xxxxxxxx   xxxxxxxx
                           xxxxxxxx    xxxxxxxx    xxxxxxxx   xxxxxxxx
                           .........   ...
software message    dev:         xxxx  retry_count:      xx   flag: xx
                    module no:   xxxx  module address:xxxxxxxxxxxxxxxx
                    async flag:  xxxx

unit Device name (external identifier)

ldn Logical device number

logging date (time) Log collection date and time

hardware message Unused

banner Banner number

status word Status

dev Number of times that a retry is made

flag Log output timing code

module address Module address

async Asynchronous flag

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IXS (1010)

banner : xxxx                           logging date: xx-xx-xx time: xx:xx:xx
seq-no : xxxx
data   : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
         xxxxxxxx xxxxxxxx

banner Banner number

logging date (time) Log collection date and time

seq-no Log sequence number

data Log kind and details

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AD, IPI, HMT (4010, 4011, 4012)

unit:                xxxx            logging date: xx-xx-xx time: xx:xx:xx
banner:              xxxx
s_f addr:            xxxx-xxxx
I-field:             xxxx
type:                xxxx
op_name:             xxxx
cyl_trk_blk_num:     xxxx-xxxx-xxxx
pblk_num:            xxxx
I/O pblk_cnt:        xxxx
command field:            xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
                          xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
response field:           xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
                          xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
                          xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
hardware log field:       xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
                          xxxxxxxx     xxxxxxxx     xxxxxxxx     xxxxxxxx
dev:  xxxx   retry_count: xx     flag: xx

unit Device name

logging date (time) Log collection date and time

banner Banner number

s_f addr Slave address - facility address

I-field I-field

type Device type

op_name READ or WRITE or OTHER

cyl_trk_blk_num Number of the cylinder - track - block

pblk_num Number of the physical block

I/O pblk_cnt I/O number of the physical block

command field data

response field data

hardware log field data

dev Device number

retry_count Number of times that a retry is made

flag Error log output reason

01 A device error occurred

02 A retry by the software failed

03 An I/O time-out occurred

04 A retry by the software is successful

05 A retry by the software is unsuccessful

Third-party Transfer (4020)

                                logging date : xxxx-xx-xx time : xx:xx:xx
banner  : xxxx
src CH  : [hp|hppc]/xxx, dst CH : [hp|hppc]/xxx
Type    : Read/Write
I-field : xxxxxxxx
I/O size: xxxxxxxx
Offset  : xxxxxxxx
eflags  : src: xxxxxxxx, dst: xxxxxxxx

Response field 1
        0000: xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
        0010: xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
        0020: xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
        *
Response field 2
        0000: xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
        0010: xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
        0020: xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
        *

logging date (time) Log collection date and time

banner Banner number

src CH Source channel

dst CH Destination channel

Type Read or Write

I-field I-field

I/O size I/O size

Offset Unuse

eflags Error flag

Response field 1 Received data

Response field 2 Sent data

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SCSI channel (4060)

unit   : PCxxx(SCSI)  logging date : xxxx-xx-xx  time : xx:xx:xx
banner : xxxx

CP         : 000 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
             010 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
             *
             3d8 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

Sense Data : 000 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
             010 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
             *
             7f0 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

unit SCSI channel name

logging date (time) Log collection date and time

banner Banner number

CP Channel program to Channel Expansion Feature

Sense Data Sense data from Channel Expansion Feature

FCP channel (4062)

unit    : xxxxx       logging date : xxxx-xx-xx time : xx:xx:xx
banner  : xxxx

P com. msg      : 000 : xxxxxxxx xxxxxxxx

CP              : 000 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
      TermStat    010 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  *
                  3F0 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

Sense Data      : 000 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  010 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  *
                  7F0 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

unit FCP channel name

logging date (time) Log collection date and time

banner Banner number

P com. msg Message to Channel Expansion Feature

CP Channel program to Channel Expansion Feature

Sense Data Sense data from Channel Expansion Feature

Ethernet channel (4063)

unit    : PCxxx[ETHER|IES]     logging date : xxxx-xx-xx time : xx:xx:xx
banner  : xxxx

CP              : 000 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  010 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  *
                  3f0 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

Sense Data      : 000 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  010 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
                  *
                  7f0 : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

unit Ethernet channel name

logging date (time) Log collection date and time

banner Banner number

CP Channel program to Channel Expansion Feature

Sense Data Sense data from Channel Expansion Feature

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SCSI device connected with SCSI channel (407x)

unit      : xxxx     logging date : xxxx-xx-xx     time : xx:xx:xx
banner    : xxxx
type      : xxxxx
op_name   : xxxxxxxx
addr/size : xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Error flags : xxxxxxxx xxxxxxxx
CDB         : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
Sense Data  : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
              ........ ........ ........ ........
              xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
Other Data  : xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
              ........ ........ ........ ........
              xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx

retry_count : xx     flag : xx

unit Device name

logging date(time) Log collection date and time

banner Banner number

type Device model name

op_name Command name to the device

addr/size

Banner 4070
Number of the cylinder-track-block / I/O number of the block
Banner 4071
I/O size
Banner 4072
Number of the element

Error flags Error code from Channel Expansion Feature

CDB Command descriptor block to the device

Sense Data Sense data from the device

Other Data

Banner 4070
Error data from the device

retry_count Number of times that a retry is made

flag Error log output reason

01 A device error occurred

02 A retry by the software failed

03 An I/O time-out occurred

04 A retry by the software is successful.

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HIPPI (4090)

unit: xxxx ()   ldn: xxxxxxxx     logging date: xx-xx-xx time: xx:xx:xx
banner:  xxxx   seq-no:xxxx: xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
termination message:         xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
                             xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
readstatus:                  xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
                             xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
readstatus data:             xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
                             xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
cp:                          xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
                             xxxxxxxx    xxxxxxxx    xxxxxxxx    xxxxxxxx
                             ........    ...
software message dev:              xxxx   retry_count:     xx    flag: xx

unit
ldn
logging date (time)
hardware message
banner
seq-no
termination message
readstatus
readstatus data
cp
dev
retry_count
flag Device name (external identifier)
Logical device number
Log collection date and time
Unused
Banner number
Log sequence number
Terminate communication data
I/O termination message for the readstatus command
Status information obtained for the readstatus command
Channel program issued when the error occurred
Device number of the erroneous device
Number of times that a retry is made
Error log output reason
00 HIPPI protocol error

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Debug Information (7000)

unit: xxxx (xxxx)     ldn: xxxxxxxx     logging date: xx-xx-xx time: xx:xx:xx
banner:  xxxx
seq-no:  xxxx
data  :  xxxxxxxx     xxxxxxxx xxxxxxxx xxxxxxxx
         xxxxxxxx     xxxxxxxx xxxxxxxx xxxxxxxx
         xxxxxxxx     xxxxxxxx xxxxxxxx xxxxxxxx
         ........     ...

unit Device name (external identifier)

ldn Logical device number

logging date (time) Log collection date and time

banner Banner number

seq-no Log sequence number

data Debug information

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Configuration Control (8000)

unit: xxxx (xxxx)     ldn: xxxxxxxx     logging date: xx-xx-xx time: xx:xx:xx
banner:  xxxx         current status:    dc_logxx
seq-no:  xxxx         previous status:   dc_logxx
                      reason-code:       xxxxxxxx

unit Device name (external identifier)

ldn Logical device number

logging date (time) Log collection date and time

banner Banner number

seq-no Log sequence number

current status Current device status

previous status Preceding device status

0x0001 Online (dc_logon)

0x0002 Unavailable (dc_logun)

0x0003 Offline (dc_logof)

reason code Error reason

See the SUPER-UX Programmer's Reference Manual for more information on the error log edit commands.

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Index

unit	Device name (external identifier)
ldn	Logical device number
logging date (time)	Log collection date and time
hardware message	Unused
banner	Banner number
status word	Status
dev	Number of times that a retry is made
flag	Log output timing code
module address	Module address
async	Asynchronous flag

unit	SCSI channel name
logging date (time)	Log collection date and time
banner	Banner number
CP	Channel program to Channel Expansion Feature
Sense Data	Sense data from Channel Expansion Feature

unit	FCP channel name
logging date (time)	Log collection date and time
banner	Banner number
P com. msg	Message to Channel Expansion Feature
CP	Channel program to Channel Expansion Feature
Sense Data	Sense data from Channel Expansion Feature

unit	Ethernet channel name
logging date (time)	Log collection date and time
banner	Banner number
CP	Channel program to Channel Expansion Feature
Sense Data	Sense data from Channel Expansion Feature