Tape DEVNO⁄CUA Statistics Summary

This report allows you to quickly see what has been happening to a device. Since all normal data is included, you can see how much activity has been experienced by a device and the pertinent exception data for the device.

The data in this report is listed by CUA for all device addresses that exceed hardware limits or had permanent errors. The data is a summary of all activity on the device for the given period in which the report was run. This includes permanent, temporary and statistical data.

Temporary errors for devices and control unit addresses are shown when the error count exceeds the LIMIT control statement.

Errors are listed by volume serial number in the order (date and time) in which they occur. The following are shown on the report:

Date
Time
VOLID
Permanent errors
Megabytes processed per error shown

This report is different from other tape reports because the statistical data comes from the 3480 miscellaneous data record (MDR), which gets its information from the buffered tape control units. 3420 tape drives get statistical data from OBR demounts received and counts are kept in main storage by the operating system.

One of these reports is generated for each device (device number or CUA) that appears as a hardware exception on the tape subsystem exception report.

The report presents the DEVNO/CUA’s temporary errors that have failed the limits set in LIMIT control statements.

Figures containing examples of these reports are on the pages shown in the following table:

REPORT	FIGURE
3490 DEVNO/CUA Statistics Summary Report Example	Figure 1
3422 DEVNO/CUA Statistics Summary	Figure 2
9347 DEVNO/CUA Statistics Summary	Figure 3

Figure 1. 3490 DEVNO/CUA Statistics Summary Report Example

       3490 DEVNO/CUA STATISTICS SUMMARY FOR]0480                   1  REPORT DATE  063 97
                                                                       PERIOD FROM  049 97
                                                                              TO    052 97

          DEVICES FAILING LIMITS OR PERMANENT ERRORS

       2  CURRENT LIMITS                      TEMP WRT (CT)   TEMP READ (CT)
          MBYTES/ERR            HARDWARE          999  ( 5)       999   ( 1)                                      17 
   19 
                                        8          9                              13                    16 
                      5   6    7     CRITERIA      ERP                  11   12 
               ECC
    3            4   ER  F  MB PROC  DATA CHK   DATA ERROR   MB/ERROR  ERSE READ DRV  CU  INSTANT    BLK PROC   BLK COR
    HDR    C
   DTE   TIME  VOLID PA  M WRT   RD  WRT  RD  WRT  RD  RD   TEMPORARY  GAPS  RTY DET  EQU SPD VAR   WRT  READ  WRT  READ   SER    P
                         T                        FWD BKWD  WRITE READ               CHKS  RD WRT                                 U
                                                                 10                   14     15 
           18 
   049 021022 L32345 2B 21  40   0    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0     96   12     1    0  00000   E
   049 021228 L32345 2B 21   1  45    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0    866   12     0    0  00000   E
   049 025623 L32345 2B 21   1  76    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   2821   14     7    9  00000   E
   050 069527 L18500 2B 21 201   0    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   2097   12     1    0  00000   E
   050 182840 L33825 2B 21   1  23    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0     12   12     0    0  00000   E
   050 185954 L31800 2B 21   1  56    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0    262   12     0    0  00000   E
   050 193136 L16550 2B 21 119   0    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0    197   12     0    0  00000   E
   050 200742 L31720 2B 21   1  79    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   4198 6368    11    7  00000   E
   050 232824 L31918 2B 21 200   0    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   2884   12     0    0  00000   E
   051 022619 L13221 2B 21 173   1    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0    544   32     0    0  00000   E
   051 035419 L22277 2B 21 178   1    7    0   7    0    0    178  ]]    0    0    0    0   0   0   5375   12     3    0  00000   E
   051 035510 L22814 2B 21   1  29    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   5505   12    12    0  00000   E
   051 035849 L22814 2B 21   1  41    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   1966   12     1    0  00000   E
   051 050204 L22814 2B 21   1  68    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0     64   12     0    0  00000   E
   051 193036 L34645 2B 21   1  92    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0     66   12     0    0  00000   E
   051 214532        34 20   0   0    0    0   0    0    0    ]]   ]]    0    0    1    0   0   0                         43000   E
   051 230711 L16553 2B 21 147   2    0    0   0    0    0    ]]   ]]    0    0    0    0   0   0   2687   12     2    0  00000   E
   051 233355 L16546 2B 21 200   1    5    0   5    0    0    200  ]]    0    0    0    0   0   0   3808  224     0    0  00000   E

CPU  MODEL  SERIAL NUMBER
 A  3081       210819
 B  3081       010819
 C  3081       170563
 D  3081       371074
 E  3081       271280

1

Report Date, Period From, Period To 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

Current Limits, MB/Err CURRENT LIMITS and megabytes/error for both the hardware and the volume are the limit values from the limit control cards.

3

DTE is the Julian date from the OBR or MDR record.

4

VOLID is the volume serial number.

5

ERA is the error recovery action code to the host (contents of Sense Byte 3).

6

FMT is the format of the sense record. Valid formats are 19, 20, 21 or 30.

7

MBPROC is the number of megabytes processed. (Data from sense byte 14–15 for write and 16–17 for read in the format 21 statistical record. Data from sense bytes 38–40 for write and sense bytes 32–35 for read in format 30.)

8

DATA CHK is the number of data checks corrected. (Criteria) (Data from sense byte 22 for write and 23 for read in format 21 statistical record or from sense byte 13 for write and sense byte 12 for read from format 30.)

9

DATA ERR is the number of Hardware ERP made. (Data from sense byte 10 for write, from sense byte 8 for read forward, and from sense byte 9 for read backward in format 21 statistical record or data from sense byte 9 for write, from sense byte 8 for read forward and from sense byte 10 for read backward from format 30.)

10

MB/ERR

WRITE is the average number of megabytes written per temporary write error.
READ is the average number of megabytes read per temporary read error.

11

ERSE GAPS is the total number of blocks re-written during error recovery. (Data from sense byte 24 of the format 21 statistical record or from sense byte 15 from format 30.)

12

READ RTY is the total number of correctable read errors detected during 3490 read error recovery. (Data from sense byte 30 of the format 21 or from sense byte 14 of format 30 statistical record.)

13

DRV DET is the number of unit checks set by the drive. (Data from sense byte 25 of the format 21 or 30 statistical record.)

14

CU EQU CHKS is the number of errors found in the use of external regs in the CU for a given device. (Data from sense byte 13 of the format 21 statistical record.)

15

INSTANT SPD VAR flag indication that tape speed variations have been detected by hardware checkers. (A function of control unit microcode or sense bytes 22, 23 and 24 of format 30.)

16

BLK PROC is the total number of blocks processed. (Data from sense byte 19 on a write and 18 on a read of the format 21 Statistical Record or sense bytes 47–49 on a write and sense bytes 50–52 on read from format 30.)

17

BLK COR is the total number of blocks corrected. (ECC corrected) (Data from sense byte 12 on a write and 11 on a read of the format 21 statistical record or sense byte 19 on a write and sense byte 18 on a read from format 30.)

18

HDR SER is the header serial number on the tape volume. The header number is derived from the last 4 digits of the control unit serial number that wrote the volume, with the drive address added to the last position. For example:

Header Serial is 3892F
The last 4 digits of control unit serial number is 3892
Drive address is F

19

CPU is the host processor reporting the data.

All error and statistical data (MDR records) are shown for devices which were listed in the Subsystem Exception Report. They are listed by CUA for the period indicated.

Note: Due to space limitations, this report does not show activity on all devices listed in the Subsystem Exception Report.

Figure 2. 3422 DEVNO/CUA Statistics Summary

3422 DEVNO/CUA STATISTICS SUMMARY FOR-0156           REPORT DATE 065 97
                                                     PERIOD FROM 041 97
                                                            TO   059 97

                                         ----------------------- 3422 -----------------------
                                                 1600 BPI                   6250 BPI
            CURRENT LIMITS               TEMP WRT(CT)  TEMP RD(CT)  TEMP WRT(CT)  TEMP RD(CT)
              MBYTES/ERR      HARDWARE      NONE (  )    NONE (  )     NONE (  )    NONE (  )

DTE  TIME  VOLID-    R/W ------MB/ERR TEMP------          LD   BST       FLS  EDC       VEL  OVR  RST                 TIE  CPU DEN-
                     E/U   WRITE(CT)    READ(CT) SIOCOUNT FAL  CHK  VRC  END  CRC  MTE  CHK  RUN  INK  CU1  CU2  CU3  P 07 ID  SITY

042 091037 340002     R    --  (  0)    -- (  0)      101   0    0    0    1    1    0    0    0    0    0    0    0  0 00  1D 6250
050 084059 TAP156          --  (  0)    -- (  0)       84   0    0    0    0    0    0    0    0    0    0    0    0  0 00  1D 6250

     COLUMN TOTALS:          (    0)    -- (  0)      185   0    0    0    1    1    0    0    0    0    0    0

            TOTALS:     MOUNTS           1

     AVERAGE MEGABYTES/TEMPORARY READ ERROR  = --
     AVERAGE MEGABYTES/TEMPORARY WRITE ERROR = --


CPU    MODEL    SERIAL NUMBER
 00    9375         234567
 01    3090XA       170028
 02    3084XA       321128
 03    3084XA       121128
 04    3081XA       221170
 05    3084XA       221103
 06    3081XA       220447

Figure 3. 9347 DEVNO/CUA Statistics Summary

9347 DEVNO/CUA STATISTICS SUMMARY FOR-0C70           REPORT DATE 065 97
                                                     PERIOD FROM 041 97
                                                            TO   059 97

                                                                     ---------------- SENSE DATA ----------------

               TIME          R/W         SCSW64-95  FAULT                              1        1        2        2        2
-ID  CPU DTE HH:MM:SS VOLID  E/O CMD FLG /CSW32-63  SYMCD   0        4        8        2        6        0        4
  8

      00 042 09 55 02         R   02  04 0E000000    2007  08C00409 10000010 38280000 00004000 80000400 00000000 00000000 00002007
      00 044 00 46 37         E   02  04 0E000000    3006  10240003 10000010 28380000 40000000 80000400 48C00000 00000000 00003006
      00 044 04 08 28         W   02  04 0E000000    2003  0844000F 10100010 38380000 00200000 80000400 00000000 00000000 00002003
      00 045 18 55 37         W   02  04 0E000000    2001  08441D07 10000010 38380000 00800000 80000400 00000000 00000000 00002001
      00 045 20 02 06         E   02  04 0E000000    3006  10240003 10000010 28380000 40000000 80000400 48C00000 00000000 00003006
      00 049 05 32 25         W   02  04 0E000000    2003  0844000F 10100010 38380000 00200000 80000400 00000000 00000000 00002003
      00 049 05 38 59         W   02  04 0E000000    2003  0844000F 10100010 38380000 00200000 80000400 00000000 00000000 00002003
      00 049 06 34 24         W   02  04 0E000000    2001  08440407 10000010 38380000 00800000 80000400 00000000 00000000 01002001
      00 049 10 14 52         W   02  04 0E000000    2003  0844000F 10100010 38300000 00200000 80000400 00000000 00000000 00002003

     TIME    VOLUME  I/O--COUNTS PERM ERROR TEMP ERROR   RETRIES    REPSN    ------------------ COUNT ----------
DTE HH:MM:SS SERIAL   READ WRITE READ WRITE READ WRITE  READ WRITE  COUNT OVR  MLT  RUP  IBG  WPC  SKW  TR4  TR5  TRP  EC
C

047 18 13 15             0  1249    0     0    0     0     0     0    105   0    0    0    0    0    0    0    0    0    0
049 06 07 59           227     0    6    15    1     0    58    92    192   0    7    3    1    0    0    7    7    4  224
049 06 12 39           227     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    3084XA       221103