Verifying Media Database Integrity
This chapter includes the following topics:
OverviewLink copied to clipboard
Inconsistencies in the Media Database may result from conversion of corrupted data in the existing tape management system’s database, or from a system crash, utility abend, and so on.
Examples of inconsistencies are:
-
errors in the links that connect multi-volume data sets (normally a result of conversion)
-
active volumes that do not contain data sets
-
scratch volumes that contain active data sets
-
inconsistencies in the Media Database can be corrected through the Control-M/Tape Inquire/Update screen (TI), or through Media Database update the CTTMUP utility
Sample CTTIDB OutputLink copied to clipboard
Figure 7 shows a sample output for the CTTIDB utility. The messages are issued in pairs. The first message (CTTnnnE) identifies the type of error detected. The second message (CTT999I) identifies the data set or volume record in error. This section provides a detailed explanation for each message in this sample and suggestions for how to resolve the problems they describe.
Figure 7 Sample Messages
CTT988E RBA 000101: VOLUME WITH NO DATASETS
CTT999I V PRD002 SEQ:002 FIRST:PRD001 PREV:PRD001 NEXT:PRD003
CTT990E RBA 000108: VOLSNUM (002) DIFFERS FROM # OF VOLUME RECORDS FOUND (001)
CTT999I D DSN.PRM04 PRM004 001
CTT983E RBA 000200: VOL: HIS001 CHAIN ERROR: INVALID PREV/NEXT POINTERS
CTT999I V HIS001 SEQ:001 FIRST:HIS001 NEXT:HIS002
CTT983E RBA 000201: VOL: HIS002 CHAIN ERROR: INVALID PREV/NEXT POINTERS
CTT999I V HIS002 SEQ:002 FIRST:HIS001
CTT983E RBA 000205: VOL: DBA003 CHAIN ERROR: VOLUME OUT OF SEQUENCE
CTT999I V DBA003 SEQ:005 FIRST:DBA001 PREV:DBA002 NEXT:DBA004
CTT987E RBA 000208: ACTIVEDS (006) DIFFERS FROM # OF DSN RECORDS FOUND (003)
CTT999I V MF0001 SEQ:000
CTT984E RBA 000303: KEY NOT FOUND. RECTYPE: D, MISSING KEY: L
CTT999I D DSN.L0006 L00006 001Problem 1 – Active Volume With no Data SetsLink copied to clipboard
CTT988E RBA 000101: VOLUME WITH NO DATASETS
CTT999IV PRD002 SEQ:002 FIRST:PRD001 PREV:PRD001 NEXT:PRD003An active volume (PRD002) containing no data sets was detected.
ProcedureLink copied to clipboard
Determine what caused the message by examining the record for the volume mentioned in the message (PRD002), as follows:
-
In the Inquire/Update entry panel (TI), type the VOLSER of the volume mentioned in the message.
-
Set DISPLAY TYPE toV
-
Press ENTER.
-
The Media Database list is displayed.
Figure 8 Media Database List
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
PRD002* 002 3490 08/08/00 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======-
The asterisk following the VOLSER indicates that volume PRD002 is part of a multi-volume chain.
-
-
-
Specify OptionG (Group) to display the other volumes in the multi-volume chain:
Figure 9 Media Database List After 4
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
G PRD002* 002 3490 08/08/00 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ====== -
Specify OptionS (Data set list) to the left of the volumes in the chain:
Figure 10 Media Database List After 5
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
PRD002* 002 3490 08/08/00 0001 Active
S PRD001* 001 3490 08/08/00 0001 Active
S PRD002* 002 3490 08/08/00 0001 Active
S PRD003* 003 3490 08/08/00 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======-
The data sets on the volumes in the chain are displayed
Data set DSN.PRD01 is not listed in the Data Set list (S) for volumes PRD002 and PRD003 that are part of the multi-volume chain containing this data set. This indicates an error.
-
-
Specify OptionA for data set record DSN.PRD01, and for volume records for PRD002 and PRD003.
Figure 11 Media Database List After 6
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
PRD002* 002 3490 08/08/00 0001 Active
PRD001* 001 3490 08/08/00 0001 Active
A DSN.PRD01 0001 Active
A PRD002* 002 3490 08/08/00 0001 Active
A PRD003* 003 3490 08/08/00 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======Figure 12 shows the additional information for the DSN.PRD01 data set that is added to the screen. Note that the # of Volumes field is 000. This is the error that caused the messages that are being investigated.
Figure 12 List Showing Additional Information for Data Set DSN.PRD01
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
DSN.PRD01 0001 Active
GENERAL INFORMATION:
Sequence #: 0001 # of Volumes: 000
Rec Format: F Rec Length: 00080
Block Size: 00080 Block Count: 00048
Comp Size: 07953KB-001% Tape Format: 256TRACK-IDRC
Uncomp Size: 00001KB
Use Count: 00001 EXCP Count: 00352
Modified: By User: N74AUP2
Job Account:
RETENTION INFORMATION:
Source: RULES
Retention: CATALOG
CREATION INFORMATION:
Date: 08/08/00 Time: 03:42
Job Name: JOB1 Step Name: STEP1
PGM Name: PGM1 DD Name: DDNAME1
UCB Addr: 0480 CPU ID:
Created By: JCL EXPDT:
SMS MGMTCLS:
----------------------------- END OF RECORD --------------------------------Figure 13 shows additional information for volume record PRD002.
Figure 13 List Showing Additional Information for Volume Record PRD002
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
PRD002* 002 08/08/00 0001 Active
GENERAL INFORMATION:
Media Desc: CARTRIDGE Unit Name: 3490
SL-Name: PRD002 Pool Name: $$NOPOOL
Location: MAINLIB Owner: N74
Description: PROD CARTS Vendor Name: IBM
Label Type: NL Tape Format: 256TRACK-IDRC
Capacity Used: 00014MB 007% Ret-Dataset: 0001
Data Uncomp: 00052MB Physical vol:
Use Count: 00001 EXCP Count: 00352
Last Access: By Job:
Last Modified: 08/08/00 By User: N74AUP2
Move Date: Return Date:
Check-In Date: 08/08/00 Clean Date:
Scratch Date: Last Label: 0001
Tape Library: Stk Group:
MULTI-VOLUME:
Volume Seq: 002 First Volume: PRD001
Next Volume: PRD003 Prev Volume: PRD001
The MULTI-VOLUME data indicates that this volume is the second in the chain and that the next volume in the chain is PRD003. In addition, because the data set spans to the third volume, the file count for this volume is 0001, and the last label is 0001. This is correct.
ResolutionLink copied to clipboard
Use the DSNUPD function of the CTTMUP utility to update data set record DSN.PRD01 with the correct number of volumes (VOLSNUM=3) and use the GRPBIX function to correct the index pointers for the multi-volume chain.
Figure 14 Sample JCL for the DSNUPD and GRPBIX Functions
//I600INDB JOB ,IOA600,MSGCLASS=X,CLASS=A
//* THIS JOB UPDATES THE MDB ACCORDING TO USER'S INPUT
//CTTMUP EXEC CTTMUP
//SYSIN DD *
TYPERUN MODE=NORMAL
DSNUPD DSVOLSER=PRD001,DSLABEL=1,DSNAME=DSN.PRD01,VOLSNUM=3
GRPBIX VOLSER=PRD001
/*
//Problem 2 – Incorrect Number of Volumes Containing a Data SetLink copied to clipboard
CTT990E RBA 000108: VOLSNUM (002) DIFFERS FROM # OF VOLUME RECORDS FOUND(001)
CTT999I D DSN.PRM04 PRM004 001Data set record DSN.PRM04 indicates that the data set spans two volumes, but only one volume was found containing this data set.
ProcedureLink copied to clipboard
-
In the Inquire/Update entry panel (TI), enter the DSNAME of the problem data set.
-
Set DISPLAY TYPE toD.
-
Press Enter.
-
The Media Database list is displayed.
Figure 15 Media Database List
CopyCopied to clipboardDATABASE LIST < D / D > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O ---DATASET NAME----------------------------- VOLSER RETENTION STATUS
DSN.PRM04 PRM004 08/08/00 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======
Specify option S (Volume list) to the left of the dataset name.
DATABASE LIST < D / D > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O ---DATASET NAME----------------------------- VOLSER RETENTION STATUS
S DSN.PRM04 PRM004 08/08/00 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======The list of volumes containing this data set is added to the display, as shown in Figure 16. Only one volume is displayed for data set DSN.PRM04, indicating that this is not a multi-volume data set. In addition, there is no asterisk to the right of the volser field, which means that this volume is not part of a multi-volume chain.
Figure 16 List of Volumes Containing the Data Set
CopyCopied to clipboardDATABASE LIST < D / D > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O ---DATASET NAME----------------------------- VOLSER RETENTION STATUS
A DSN.PRM04 PRM004 08/08/00 Active
A PRM004 Files: 0001
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======
-
-
Specify OptionA (Additional Information) for both the data set and the volume containing it.
The additional information is added to the display. The following screen contains the additional information for data set DSN.PRM04. Note that the # of Volumes field contains a value of 002. This is an error.
Figure 17 List Showing Additional Information for Data Set DSN.PRM04
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
DSN.PRM04 0001 Active
GENERAL INFORMATION:
Sequence #: 0001 # of Volumes: 002
Rec Format: FB Rec Length: 00080
Block Size: 00080 Block Count: 00048
Compsize: * Tape Format: 256TRACK-IDRC
Uncomp Size: *
Use Count: 00001 EXCP Count: 00121
Modified: 08/08/00 By User: N74AUP2
Job Account:
Stk Group:
RETENTION INFORMATION:
Source: RULES
Retention: CATALOG
CREATION INFORMATION:
Date: 07/07/00 Time: 06:12
Job Name: JOB2 Step Name: STEP2
PGM Name: PGM2 DD Name: DDNAME2
UCB Addr: 0481 CPU ID: ESA1
Created By: M72 JCL EXPDT:
SMS MGMTCLS:Figure 18 shows additional information on volume PRM004.
Figure 18 List Showing Additional Information for Volume PRM004
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
PRM004 3490 08/08/01 0001 Active
GENERAL INFORMATION:
Media Desc: CARTRIDGE Unit Name: 3490
SL-Name: PRM004 Pool Name: $$NOPOOL
Location: MAINLIB Owner: N74
Description: CARTRIDGE Vendor Name: IBM
Label Type: SL Tape Format: 256TRACK
Capacity Used: 000014MB 007% Ret-Dataset: 0001
Data Uncomp: 000052MB Physical vol:
Use Count: 00000 EXCP Count: 00243
Last Access: By Job:
Last Modified: 08/08/00 By User:
Move Date: Return Date:
Check-In Date: 08/08/00 Clean Date:
Scratch Date: Last Label: 0001
Tape Library: Stk Group:No MULTI-VOLUME data exists for this volume. In addition, because the data set spans to the third volume, the file count for this volume is 0001, and the last label is 0001.
ResolutionLink copied to clipboard
-
Run the CTTRPT utility to determine if there is another volume record that refers to this volume in the PREVVOL or FIRSTVOL field. Figure 19 shows a sample JCL for activation of CTTRPT for this search:
Figure 19 Sample JCL for CTTRPT Activation
CopyCopied to clipboard//REPORT1 JOB ,CTT,CLASS=A,MSGCLASS=X
//CTTRPT EXEC CTTRPT,REGION=32M
//SYSIN DD *
EXTRACT PATH=VOLUME/FIRSTDS
INCLUDE FIRSTVOL=PRM004
INCLUDE PREVVOL=PRM004
REPORT NAME=GENERAL,PAGESIZE=63,LINESIZE=256,MARGINS=1-256
FIELDS VOLSER,DSNAME
SORTBY VOLSER -
If no such volume is located, it indicates that the data set record is in error.
Use the DSNUPD function of the CTTMUP utility to update data set record DSN.PRM04 with the correct number of volumes (VOLSNUM=1). It is not necessary to rebuild the index pointers for this multi-volume chain after resolving this problem.
Problem 3 – Volume Chain ErrorLink copied to clipboard
CTT983E RBA 000200: VOL: HIS001 CHAIN ERROR: INVALID PREV/NEXT POINTERS
CTT999I V HIS001 SEQ:001 FIRST:HIS001 NEXT:HIS002
CTT983E RBA 000201: VOL: HIS002 CHAIN ERROR: INVALID PREV/NEXT POINTERS
CTT999I V HIS002 SEQ:002 FIRST:HIS001An error was detected in a multi-volume chain. The values for the PREVVOL and/or NEXTVOL fields are missing or invalid. Determine which of the pointers are wrong or missing. The volume records need to be updated with the correct PREVVOL and NEXTVOL information. The index pointers for this multi-volume chain only need to be rebuilt if the data set is not listed for each volume in the chain.
In this example, the Inquire/Update screen (TI), indicates that the volumes are part of a multi-volume chain for data set, DSN.HIS01, but the Additional Information screen (A) for volume HIS002 indicates that the Prev Volume pointer is missing.
ProcedureLink copied to clipboard
-
In the Inquire/Update entry panel (TI), enter the VOLSER of the volume in question.
-
Set DISPLAY TYPE toV.
-
Press Enter.
The Media Database list is displayed.
-
Specify OptionG (Group) to the left of the problem volume (HIS001) to display the volumes in the multi-volume chain.
The volume HIS002 is not followed by an asterisk, indicating that it is not part of a multi-volume chain. This is an error
-
Specify OptionA (Additional Information) for volumes HIS001 and HIS002.
Figure 20 List of Volumes in the Multi-Volume Chain
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
A HIS001* 001 12/12/00 0001 Active
HIS001* 001 12/12/00 0001 Active
DSN.HIS01 002 0001 Active
A HIS002 12/12/00 0001 Active
DSN.HIS01 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ====== -
Press Enter.
Additional information for volume record HIS001 is displayed.
Figure 21 List Showing Additional Information for Volume Record HIS001
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
HIS001* 001 12/12/00 0001 Active
GENERAL INFORMATION:
Media Desc: CARTRIDGE Unit Name: 3490
SL-Name: HIS001 Pool Name: $$NOPOOL
Location: MAINLIB Owner: N74
Description: CARTRIDGE Vendor Name: IBM
Label Type: SL Tape Format: 256TRACK
Capacity Used: 00000MB 000% Ret-Dataset: 0001
Data Uncomp: 00000MB Physical vol:
Use Count: 00000 EXCP Count: 00000
Last Access: By Job:
Last Modified: 08/08/00 By User: N74AUP2
Move Date: Return Date:
Check-In Date: 08/08/00 Clean Date:
Scratch Date: Last Label: 0001
Tape Library: Stk Group:
MULTI-VOLUME:
Volume Seq: 001 First Volume: HIS001
Next Volume: HIS002 Prev Volume:HIS002 is specified as the NextVolume in the MULTI-VOLUME data at the bottom of this screen.
Figure 22 shows additional information for volume HIS002.
Figure 22 List Showing Additional Information for Volume HIS002
DATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
HIS002 12/12/00 0001 Active
GENERAL INFORMATION:
Media Desc: CARTRIDGE Unit Name: 3490
SL-Name: HIS002 Pool Name: $$NOPOOL
Location: MAINLIB Owner: N74
Description: CARTRIDGE Vendor Name: IBM
Label Type: SL Tape Format: 256TRACK
Capacity Used: 00000MB 000 Ret-Dataset: 0001
Data Uncomp: 00000MB Physical vol:
Use Count: 00000 EXCP Count: 00000
Last Access: By Job:
Last Modified: 08/08/00 By User: N74AUP2
Move Date: Return Date:
Check-In Date: 08/08/00 Clean Date:
Scratch Date: Last Label: 0001
Tape Library: Stk Group:
MULTI-VOLUME:
Volume Seq: 002 First Volume: HIS001
Next Volume: Prev Volume: The Prev Volume field is blank. This is an error.
ResolutionLink copied to clipboard
Use the VOLUPD function of the CTTMUP utility to update the PREVVOL pointer in the volume record, HIS002.
Figure 23 Sample JCL for the VOLUPD Function
//I600INDB JOB ,IOA600,MSGCLASS=X,CLASS=A
//* THIS JOB UPDATES THE MDB ACCORDING TO USER'S INPUT
//CTTMUP EXEC CTTMUP
//SYSIN DD *
TYPERUN MODE=NORMAL
VOLUPD VOLSER=HIS002,PREVVOL=HIS001
/*
//Problem 4 – Volume Chain Sequence ErrorLink copied to clipboard
CTT983E RBA 000205: VOL: DBA003 CHAIN ERROR: VOLUME OUT OF SEQUENCE
CTT999I V DBA003 SEQ:005 FIRST:DBA001 PREV:DBA002 NEXT:DBA004Volume record DBA003 that is part of a multi-volume chain has an invalid volume sequence number. Volume sequence numbers in a multi-volume chain must be consecutive. The volume record needs to be updated with the correct VOLSEQ data.
ProcedureLink copied to clipboard
-
In the Inquire/Update entry panel (TI), enter the VOLSER of the volume in question.
-
Set DISPLAY TYPE toV.
-
Press Enter.
The Media Database list is displayed.
-
Specify OptionG (Group) to the left of the problem volume (DBA003), and specify OptionA (Additional Information) for this volume.
The volumes in the multi-volume chain are displayed. Note that VOLSEQ number 005 is indicated for volume DBA0003.
Figure 24 List of Volumes in the Muti-Volume Chain
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
DBA003* 005 12/12/00 0001 Active
GENERAL INFORMATION:
Media Desc: CARTRIDGE Unit Name: 3490
SL-Name: DBA003 Pool Name: $$NOPOOL
Location: MAINLIB Owner: N74
Description: CARTRIDGE Vendor Name: IBM
Label Type: SL Tape Format: 256TRACK
Capacity Used: 00000MB 000% Ret-Dataset: 0001
Data uncomp: 00000MB Physical vol:
Use Count: 00000 EXCP Count: 00000
Last Access: By Job:
Last Modified: 08/08/00 By User: N74AUP2
Move Date: Return Date:
Check-In Date: 08/08/00 Clean Date:
Scratch Date: Last Label: 0001
Tape Library: Stk Group:
MULTI-VOLUME:
Volume Seq: 005 First Volume: DBA001
Next Volume: DBA004 Prev Volume: DBA002
----------------------------- END OF RECORD --------------------------------The following screen shows the additional information fields for volume DBA003.
Figure 25 List of Additional Information for Volume DBA003
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
DBA003* 005 12/12/00 0001 Active
DBA001* 001 12/12/00 0001 Active
DBA002* 002 12/12/00 0001 Active
A DBA003* 005 12/12/00 0001 Active
DBA004* 004 12/12/00 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< =====In the MULTI-VOLUME data at the bottom of the screen, DBA002 is indicated as the previous volume in the multi-volume chain, and DBA004 is indicated as the next volume. Because the previous screen showed that these volumes (DBA002 and DBA004) have volume sequence numbers of 002 and 004 respectively, it is apparent that the correct volume sequence number for volume DBA003 is 003.
ResolutionLink copied to clipboard
Use the VOLUPD function of the CTTMUP utility to set the correct sequence number (VOLSEQ=3).
Figure 26 Sample JCL for the VOLUPD Function
//I600INDB JOB ,IOA600,MSGCLASS=X,CLASS=A
//* THIS JOB UPDATES THE MDB ACCORDING TO USER'S INPUT
//CTTMUP EXEC CTTMUP
//SYSIN DD *
TYPERUN MODE=NORMAL
VOLUPD VOLSER=DBA003,VOLSEQ=3
/*
//Problem 5 – Incorrect Number of Active Data Sets on a VolumeLink copied to clipboard
CTT987E RBA 000208: ACTIVEDS (006) DIFFERS FROM # OF DSN RECORDS FOUND (003)
CTT999I V MF0001 SEQ:000A logical error was detected in a volume record. Volume record field ACTIVEDS specifies the number of active data sets on the volume. This field must contain the same number of data sets as the CTTIDB utility found on the volume.
Use the Inquire/Update screen (TI) to verify the correct number of data sets on the volume and update the ACTIVEDS field in the volume record. In this example, the Inquire/Update screen indicates that volume MF0001 contains three data sets but the FILES field indicated that the volume has six files.
ProcedureLink copied to clipboard
-
In the Inquire/Update entry panel, enter the VOLSER of the volume in question.
-
Set DISPLAY TYPE toV.
-
Press Enter.
The Media Database list is displayed.
-
Specify OptionS (Dataset List) to the left of the problem volume (DBA003).
The data sets stored on the volume are displayed.
Figure 27 List of Data Sets Stored on the Volume
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
MF0001 12/12/00 0006 Active
D.MF1#1 0001 Active
D.MF1#2 0002 Active
D.MF1#3 0003 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======Although only three data sets are stored on this volume, the volume record indicates that there are six.
ResolutionLink copied to clipboard
-
Specify OptionU (Update) for volume MF0001.
Figure 28 List Showing Volume Update Panel
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
U MF0001 12/12/00 0006 Active
D.MF1#1 0001 Active
D.MF1#2 0002 Active
D.MF1#3 0003 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======
The Volume Update panel is displayed.
VOLUME UPDATE PANEL (TI.UV)
COMMAND ===> SCROLL===> CRSR
-------------------------------------------------------------------------------
¼ VOLSER MF0001 STATUS Act-Out
¼ GENERAL INFORMATION:
¼ SL-NAME MF0001 OWNER N74
¼ MEDIA TYPE 3490 MEDIA DESC CARTRIDGE
¼ DESCRIPTION CARTRIDGE VENDOR NAME IBM
¼ STK GROUP
¼ RETENTION & LOCATION INFORMATION:
¼ RETENTION DATE 121200 RET-DATASET 001
¼ LOCATION MAINLIB MOVE DATE 090900
¼ CHECKIN DATE 080800 RETURN DATE
¼ TAPE LIBRARY
¼ USAGE INFORMATION:
¼ ACTIVE DS# 0006 LAST LABEL 0006
¼ CAPACITY USD 00000 (MB) 000% EXCP COUNT 00000
¼ DATA UNCOMP 00000 (MB)
¼ LAST ACCESS 080800 BY JOB JOB5
¼ CLEAN COUNT 00000 CLEAN DATE
¼ USER INFORMATION:
¼ USER FIELD -
Correct the value in fields ACTIVE DS# and LAST LABEL and return to the data set list.
-
Press (PF03/PF15) to save the update and to exit the Volume Update panel.
A confirmation window is displayed. Note that 006 is still specified for the FILES field.
Figure 29 Volume Update Confirmation Window
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLS +-----------------------+ FILES LOCATION ---STATUS----
U MF0001 <----- | CONFIRM Y (Y/N) | 0006 Active
D.MF1#1 +-----------------------+ 0001 Active
D.MF1#2 0002 Active
D.MF1#3 0003 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ====== -
Enter Y to confirm the change.
After confirmation, the FILES specification is updated.
Figure 30 Files Specification Update Window
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
MF0001 3490 12/12/00 0003 Act-Out
D.MF1#1 0001 Active
D.MF1#2 0002 Active
D.MF1#3 0003 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ======
Problem 6 – Missing Index KeyLink copied to clipboard
CTT984E RBA 000303: KEY NOT FOUND. RECTYPE: D, MISSING KEY: L
CTT999I D DSN.L0006 L00006 001A data set record with no L-type index record (key) was detected. Use the Inquire/Update screen (TI) to verify the data set and volume.
The data set record for data set DSN.L0006 indicates that it is stored on volume L00006, but the data set list for this volume does not list the data set (although it does indicate the number of files is equal to 0001)..
ProcedureLink copied to clipboard
-
In the Inquire/Update entry panel, enter the DSNAME of the problem data set (DSN.L0006).
-
Set DISPLAY TYPE toD.
-
Press Enter.
The Media Database list is displayed.
Figure 31 Media Database List
CopyCopied to clipboardDATABASE LIST < D / D > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR O
---DATASET NAME----------------------------- VOLSER RETENTION STATUS
DSN.L0006 L00006 CATALOG Active
L00006 Files: 0001
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ====== -
Specify OptionS (Volume list) to the left of the problem data set.
The problem volume is displayed.
-
Return to the Inquire/Update screen (TI) and specify the volser and display typeV.
The volume information for volser L00006 is displayed.
Figure 32 List of Volume Information for Volser L00006
CopyCopied to clipboardDATABASE LIST < V / V > --------------------------------------------------(TI)
COMMAND ===> SCROLL===> CRSR
O VOLSER VOLSEQ MEDIA RETENTION L-ACCESS FILES LOCATION ---STATUS----
L00006 3490 12/12/00 0001 Active
====== >>>>>>>>>>>>>>> NO MORE ENTRIES IN THE LIST <<<<<<<<<<<<<<< ====== -
Specify OptionS (Dataset list) to the left of the problem volume.
No data sets are listed for this volume. This is due to the index problem under examination.
ResolutionLink copied to clipboard
Use the CTTMUP utility to rebuild the index pointers for VOLSER=L00006 and the relevant data set records.
Figure 33 Sample JCL for the CTTMUP Utility
//I600INDB JOB ,IOA600,MSGCLASS=X,CLASS=A
//* THIS JOB UPDATES THE MDB ACCORDING TO USER'S INPUT
//CTTMUP EXEC CTTMUP
//SYSIN DD *
TYPERUN MODE=NORMAL
VOLBIX VOLSER=L00001
/*
// 
Communities
Support Center
YouTube
Twitter
Facebook
LinkedIn