This report presents all the temporary read⁄write errors
recorded for tape hardware during the report period for all MDR records.
Errors are listed by CUA or device number and density regardless of
whether or not they exceeded the LIMIT values and appeared in the
subsystem exception report.
The LIMIT control values specified when invoking EREP are ignored
for this report.
The column headings may differ depending upon the specific device.
Only the 3480 and 3490 devices can produce a two-part temporary
error summary report: one displaying device activity and the other
displaying channel activity. The rest of the 34XX devices combine
them in one report.
Figures containing examples of these reports are on the pages shown
in the following table:
| REPORT |
FIGURE |
|---|
| 3490 Temporary Error Summary Channel Example |
Figure 1 |
| 3490 Temporary Error Summary Device Example |
Figure 2 |
| 3420/3410 Temporary Error Summary |
Figure 3 |
| 9347 Temporary Error Summary |
Figure 4 |
Figure 1. 3490 Temporary Error Summary Channel
Example3490 TEMPORARY ERROR SUMMARY CHANNEL 1 REPORT DATE 067 97
PERIOD FROM 049 97
TO 052 97
2 3 4 5 6 7 8 9
10
TOTAL BLOCKS 11
DEVNO DRIVE --WRITE----- --READ------ TOTAL MBYTES -PROCESSED- --READ------ --WRITE----
/CUA ID CPU MOUNTS MB/ERR ERRCT MB/ERR ERRCT READ WRITE READ WRITE MB/COR ECC MB/COR ECC
5A0 08160 0F 101 -- 0 -- 0 2495 2328 530176 300288 68 71 62 100
5A1 08151 0F 94 -- 0 -- 0 4070 1691 458240 237824 74 146 49 101
5A2 08152 0F 118 866 1 7030 1 7030 866 653056 94720 35 391 33 56
5A3 08153 0F 151 2108 1 -- 0 5563 2108 793088 330752 34 318 20 207
5A4 08154 0F 94 179 12 -- 0 6114 2148 802408 243968 49 243 41 102
5A5 08155 0F 109 1516 1 -- 0 6492 1516 797440 200448 60 215 59 51
5A6 08156 0F 106 -- 0 -- 0 1676 1590 190464 283392 45 79 20 166
5A7 08157 0F 127 -- 0 -- 0 5697 1970 705792 227072 85 248 56 121
5B0 12450 0F 23 -- 0 -- 0 42 142 5376 13568 27 1 10 13
5B1 12451 0F 35 -- 0 -- 0 2584 195 173070 25600 27 182 4 42
5B2 12452 F0 29 -- 0 528 1 528 55 95744 4096 132 15 44 1
5B3 12453 F0 25 383 1 -- 0 22 383 4864 46848 -- 0 82 22
5B4 12454 F0 18 -- 0 -- 0 541 481 48384 26112 19 87 80 17
5B5 12455 F0 17 -- 0 -- 0 19 8 2048 1024 14 3 8 1
5B8 12458 F0 21 -- 0 -- 0 5 553 3840 18432 -- 0 66 21
5B9 12459 F0 25 -- 0 -- 0 856 185 77568 6144 35 53 185 1
5BA 1245A F0 19 -- 0 -- 0 6 4 768 0 -- 0 0 0
5BB 1245B F0 15 -- 0 -- 0 12 256 1024 23040 -- 0 42 15
5BC 1245C F0 12 -- 0 609 1 609 13 53760 3328 64 26 3 4
5BD 1245D F0 16 -- 0 -- 0 728 83 65792 6912 52 43 41 4
TOTAL 1155 16 3 45076 17076 5534K 1899K 1843 950
17
AVERAGE MEGABYTES/TEMPORARY READ ERROR = 15025
AVERAGE MEGABYTES/TEMPORARY WRITE ERROR = 1067
AVERAGE MEGABYTES/RECOVERED ERROR = 15538
AVERAGE MEGABYTES/PERMANENT READ ERROR = *
AVERAGE MEGABYTES/PERMANENT WRITE ERROR = 8538
AVERAGE MEGABYTES/PERMANENT ERROR # = 12430 (#) = THERE WERE NO ERRORS LOGGED FOR CALCULATION
AVERAGE MEGABYTES/PERMANENT HARDWARE ERROR = 20717
AVERAGE MEGABYTES/PERMANENT VOLUME ERROR = 31076
AVERAGE MEGABYTES/PERMANENT OTHER ERROR = *
TOTAL MEGABYTES PROCESSED = 62152
18
CPU MODEL SERIAL NUMBER
0E 3081 210819
F0 3081 010819
- 1
- REPORT DATE is the Julian date the report ran.
PERIOD FROM
is the Julian date of the earliest record.
PERIOD TO is the
Julian date of the latest record.
- 2
- DEVNO/CUA is the device number in XA mode or the primary
control unit address (PCUA).
- 3
- DRIVE ID is the last 4 digits of the control unit serial
number that wrote the volume, with the drive address added as the
last digit.
- 4
- CPU identifies the host processor reporting the exception.
The actual CPU model and serial number are shown at the bottom of
the report.
- 5
- MOUNTS is the total number of all mounts on this device.
- 6
- WRITE
- MB/ERR is the average number of megabytes written per
temporary write error from the channel.
- ERRCT is the total count of all temporary write errors
from the channel.
- 7
- READ
- MB/ERR is the average number of megabytes read per temporary
read error from the channel.
- ERRCT is the total count of all temporary read errors
from the channel.
- 8
- TOTAL MBYTES READ WRITE
- READ is the total number of megabytes read on the channel.
- WRITE is the total number of megabytes written on the channel.
- 9
- TOTAL BLOCKS PROCESSED READ WRITE
- READ is the total number of blocks read from the channel.
- WRITE is the total number of blocks written from the channel.
- 10
- READ MB/COR ECC
- MB/COR is the average number of megabytes read on the device,
per read ECC error.
- ECC is the number of read ECC corrected blocks read from the
device.
- 11
- WRITE MB/COR ECC
- MB/COR is the average number of megabytes written on the device,
per correctable error.
- ECC is the number of blocks that have been written with read
ECC correctable errors, as determined by read-back ECC checking.
- 17
- TOTAL and AVERAGE
- AVERAGE is the total number of megabytes divided by the total
number of errors of a particular type, for all 3490 drives used by
the operating system.
For example:
Average Megabytes/Temporary
Read Errors is the total number of the megabytes read divided by the
total number of the temporary read errors.
The PERMANENT ERROR
values are meant to provide a source of performance information for
all 3490 drives in the operating system. The TOTAL MEGABYTES read,
written and processed are for all 3490 drives used by the operating
system.
An asterisk (*) in the calculation field (to the right
of the equal sign) indicates that no errors were logged.
- 18
- CPU, MODEL, SERIAL NUMBER further identifies the CPU listed
in the error summary lines of the report.
Figure 2. 3490 Temporary Error Summary Device
Example3490 TEMPORARY ERROR SUMMARY DEVICE 1 REPORT DATE 067 97
PERIOD FROM 049 97
TO 052 97 13 15
11 12
2 3 4 5 6 7 8 9
10
TOTAL BLOCKS READ WRITE DRV CU 16 :
erk.
DEVNO DRIVE --WRITE----- --READ------ TOTAL MBYTES -PROCESSED- --READ------ --WRITE---- RECVY ERASE DET EQC TRA
/CUA ID CPU MOUNTS MB/ERR ERRCT MB/ERR ERRCT READ WRITE READ WRITE MB/COR ECC MB/COR ECC ACTS GAPS ERR CHK ERR
5A0 08160 0F 101 -- 0 -- 0 2495 2328 530176 300288 68 71 62 100 0 0 0 0 0
5A1 08151 0F 94 -- 0 -- 0 4070 1691 458240 237824 74 146 49 101 0 0 0 0 0
5A2 08152 0F 118 866 1 7030 1 7030 866 653056 94720 35 391 33 56 3 0 0 0 0
5A3 08153 0F 151 2108 1 -- 0 5563 2108 793088 330752 34 318 20 207 0 0 0 0 0
5A4 08154 0F 94 179 12 -- 0 6114 2148 802408 243968 49 243 41 102 0 0 1 0 0
5A5 08155 0F 109 1516 1 -- 0 6492 1516 797440 200448 60 215 59 51 0 0 0 0 0
5A6 08156 0F 106 -- 0 -- 0 1676 1590 190464 283392 45 79 20 166 0 0 0 0 0
5A7 08157 0F 127 -- 0 -- 0 5697 1970 705792 227072 85 248 56 121 0 0 0 0 0
5B0 12450 0F 23 -- 0 -- 0 42 142 5376 13568 27 1 10 13 0 0 0 0 0
5B1 12451 0F 35 -- 0 -- 0 2584 195 173070 25600 27 182 4 42 0 0 0 0 0
5B2 12452 F0 29 -- 0 528 1 528 55 95744 4096 132 15 44 1 0 0 0 0 0
5B3 12453 F0 25 383 1 -- 0 22 383 4864 46848 -- 0 82 22 0 1 0 0 0
5B4 12454 F0 18 -- 0 -- 0 541 481 48384 26112 19 87 80 17 0 0 0 0 0
5B5 12455 F0 17 -- 0 -- 0 19 8 2048 1024 14 3 8 1 0 0 0 0 0
5B8 12458 F0 21 -- 0 -- 0 5 553 3840 18432 -- 0 66 21 0 0 0 0 0
5B9 12459 F0 25 -- 0 -- 0 856 185 77568 6144 35 53 185 1 0 0 0 0 0
5BA 1245A F0 19 -- 0 -- 0 6 4 768 0 -- 0 0 0 0 0 0 0 0
5BB 1245B F0 15 -- 0 -- 0 12 256 1024 23040 -- 0 42 15 0 0 0 0 0
5BC 1245C F0 12 -- 0 609 1 609 13 53760 3328 64 26 3 4 0 0 0 0 0
5BD 1245D F0 16 -- 0 -- 0 728 83 65792 6912 52 43 41 4 0 0 0 0 0
TOTAL 1155 16 3 45076 17076 5534K 1899K 1843 950 3 1 1 0 0
17
AVERAGE MEGABYTES/TEMPORARY READ ERROR = 15025
AVERAGE MEGABYTES/TEMPORARY WRITE ERROR = 1067
AVERAGE MEGABYTES/RECOVERED ERROR = 15538
AVERAGE MEGABYTES/PERMANENT READ ERROR = *
AVERAGE MEGABYTES/PERMANENT WRITE ERROR = 8538
AVERAGE MEGABYTES/PERMANENT ERROR # = 12430 (#) = THERE WERE NO ERRORS LOGGED FOR CALCULATION
AVERAGE MEGABYTES/PERMANENT HARDWARE ERROR = 20717
AVERAGE MEGABYTES/PERMANENT VOLUME ERROR = 31076
AVERAGE MEGABYTES/PERMANENT OTHER ERROR = *
TOTAL MEGABYTES PROCESSED = 62152
18
CPU MODEL SERIAL NUMBER
0E 3081 210819
F0 3081 010819
- 1
- REPORT DATE is the Julian date the report ran.
PERIOD FROM
is the Julian date of the earliest record.
PERIOD TO is the
Julian date of the latest record.
- 2
- DEVNO/CUA is the device number in XA mode or the primary
control unit address (PCUA).
- 3
- DRIVE ID is the last 4 digits of the control unit serial
number that wrote the volume, with the drive address added as the
last digit.
- 4
- CPU identifies the host processor reporting the exception.
The actual CPU model and serial number are shown at the bottom of
the report.
- 5
- MOUNTS is the total number of all mounts on this device.
- 6
- WRITE
- MB/ERR is the average number of megabytes written per
temporary write error on the device.
- ERRCT is the total count of all temporary write errors
on the device.
- 7
- READ
- MB/ERR is the average number of megabytes read per temporary
read error on the device.
- ERRCT is the total count of all temporary read errors
on the device.
- 8
- TOTAL MBYTES READ WRITE
- READ is the total number of megabytes read from the device.
- WRITE is the total number of megabytes written on the device.
- 9
- TOTAL BLOCKS PROCESSED READ WRITE
- READ is the total number of blocks read on the device.
- WRITE is the total number of blocks written on the device.
- 10
- READ MB/COR ECC
- MB/COR is the average number of megabytes read on the device,
per read ECC error.
- ECC is the number of read ECC corrected blocks read from the
device.
- 11
- WRITE MB/COR ECC
- MB/COR is the average number of megabytes written on the device,
per correctable error.
- ECC is the number of blocks that have been written with read
ECC correctable errors, as determined by read-back ECC checking.
- 12
- READ RECVY ACTS is the total number of correctable read
errors detected during 3490 read error recovery.
- 13
- WRITE ERASE GAPS is the total number of blocks rewritten
during error recovery.
- 14
- DRV DET ERR is the number of unit checks set by the drive.
- 15
- CU EQU CHK is the number of errors found in the use of
external regs in the CU for a given device.
- 16
- TRA ERR Flag indicating that transient errors have been
detected by hardware checkers.
- 17
- TOTAL and AVERAGE
- AVERAGE is the total number of megabytes divided by the total
number of errors of a particular type, for all 3490 drives that were
used by the operating system.
For example:
Average Megabytes/Temporary
Read Errors is the total number of the megabytes read divided by the
total number of the temporary read errors.
The PERMANENT ERROR
values are meant to provide a source of performance information for
all 3490 drives in the operating system.
The TOTAL MEGABYTES
read, written and processed are for all 3490 drives used by the operating
system.
An asterisk (*) in the calculation field (to the right
of the equal sign) indicates that no errors were logged.
- 18
- CPU, MODEL, SERIAL NUMBER further identifies the CPU listed
in the error summary lines of the report.
Figure 3. 3420/3410 Temporary Error Summary3420/3410 TEMPORARY ERROR SUMMARY REPORT DATE 065 97
PERIOD FROM 041 97
TO 059 97
TAPE C WRITE READ
DEVNO UNIT P DEN- TOTAL TOTAL STATISTICS STATISTICS ENV MTE SRC EDC VEL SKEW R/W WTM PAR/ OVER IBG
/CUA SER U SITY I/O CNT MOUNT MB/ERR(CT) ERSGAP MB/ERR(CT) CLNACT VRC LRC /PC CRC CHG ERR VRC CHK TACH RUN DET
0180 59437 07 6250 10 0 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0180 59437 07 1600 7526 1 0 ( 4) 4 -- ( 0) 0 2 0 0 0 2 0 0 0 0 0 0
0181 N/A 07 6250 6 0 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0570 N/A 03 6250 3961 2 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0570 N/A 08 OTHR 7 1 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0572 N/A 09 6250 539 1 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0573 N/A 03 6250 2314 1 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0573 N/A 06 1600 1073 1 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
0575 N/A 03 1600 3 1 -- ( 0) 0 -- ( 0) 0 0 0 0 0 0 0 0 0 0 0 0
6250BPI TOTALS: 6830 4 ( 0) 0 ( 0) 0
1600BPI TOTALS: 8602 3 ( 4) 4 ( 0) 0
OTHRBPI TOTALS: 7 1 ( 0) 0 ( 0) 0
TOTALS: 15439 8 ( 4) 4 ( 0) 0
AVERAGE MEGABYTES/TEMPORARY READ ERROR = ------
AVERAGE MEGABYTES/TEMPORARY WRITE ERROR = 0
AVERAGE MEGABYTES/PERMANENT READ ERROR = ------
AVERAGE MEGABYTES/PERMANENT WRITE ERROR = ------
AVERAGE MEGABYTES/PERMANENT ERROR = ------
TOTAL MEGABYTES PROCESSED = 0
TOTAL MEGABYTES READ = 0
TOTAL MEGABYTES WRITTEN = 0
CPU MODEL SERIAL NUMBER
00 9375 234567
01 3090XA 170028
02 3084XA 321128
03 3084XA 121128
04 3081XA 221170
05 4341 015085
06 3081XA 220447
07 4331 013078
08 3081XA 221573
09 3033 021928
Figure 4. 9347 Temporary Error Summary9347 TEMPORARY ERROR SUMMARY REPORT DATE 065 97
PERIOD FROM 041 97
TO 059 97
C
DEVNO P TIME VOLUME I/O--COUNTS PERM ERROR TEMP ERROR RETRIES REPSN ---------------- COUNT ----------------
/CUA U DTE HHMMSS SERIAL READ WRITE READ WRITE READ WRITE READ WRITE COUNT OVR MLT RUP IBG WPC SKW TR4 TR5 TRP ECC
0C70 00 047 181315 0 1249 0 0 0 0 0 0 105 0 0 0 0 0 0 0 0 0 0
0C70 00 049 060759 227 0 6 15 1 0 58 92 192 0 7 3 1 0 0 7 7 4 224
0C70 00 049 061239 229 0 0 0 1 0 1 0 226 0 0 1 0 0 0 0 1 0 224
CPU MODEL SERIAL NUMBER
00 9375 234567
01 3090XA 170028
02 3084XA 321128
03 3084XA 121128
04 3081XA 221170
05 4341 015085
06 3081XA 220447
07 4331 013078
08 3081XA 221573
09 3033 021928
EREP Reference
Copyright IBM Corporation 1990, 2014