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IBM 3480 manual available for free PDF download: User Reference
IBM 3480 User Reference (106 pages)
Magnetic tape subsystem
Brand:
IBM
| Category:
Storage
| Size: 6.62 MB
Table of Contents
Table of Contents
10
Chapter 1 Chapter The IBM 3480 Magnetic Tape Subsystem
16
IBM 3480 Magnetic Tape Subsystem Operating Mode
17
Conventions Used
18
Chapter 2. Tape Characteristics
20
Changed Format of IBM Standard Data Set Label 2 (HDR2/EOV2/EOF2)
20
Chapter 3. Modifying Existing Code in MVS Systems
22
Selecting Data Set Options
22
DCB Parameters
22
Coding the Block Size and Logical Record Length Operands
23
Constructing a Data Control Block
23
Specifying JCL Options
24
Modifying the Job File Control Block (JFCB)
24
Setting the Header Label Block ID in the JFCB for High-Speed Search
25
Example of How to Code OPEN(J)
26
MVS Block Count Checking
27
User Exits
28
EXCP Routines
28
User Programs
29
Performance Options for IEBGENER
30
IEBGENER Storage Requirements
30
Chapter 4. Controlling the 110 Device
32
Controlling High-Speed Search (NOTE/POINT)
32
How the Physical Block Identifier Works
32
Retrieving the BLOCKID
32
Performing the High-Speed Search
33
Comparing Conventional Search and High-Speed Search
34
Examples of How to Code NOTE and POINT
35
NOTE-Provide Relative Position (BPAM and BSAM)
37
Completion Codes from NOTE
38
POINT-Moving Tape to a Relative Block Position (BPAM and BSAM)
38
Completion Codes from POINT
40
Controlling Data Synchronization (SYNCDEV)
40
Example of How to Code SYNCDEV
42
SYNCDEV-Synchronize Device
43
SYNCDEV-List Form
44
SYNCDEV-Execute Form
45
Completion Codes from SYNCDEV
46
Obtaining I/O Device Characteristics (DEVTYPE)
47
Chapter 5. Displaying Messages (MSGDISP)
48
Displaying a Message from any User Program (MSGDISP RDY)
48
Example of How to Code MSGDISP RDY
49
MSGDISP-Displaying a Ready Message
50
MSGDISP-Displaying a Ready Message List Form
51
MSGDISP-Displaying a Ready Message Execute Form
52
Displaying a Message from Authorized Programs
53
MSGDISP-Displaying a Mount Message
54
MSGDISP-Displaying a Verify Message
57
MSGDISP-Displaying a Demount Message
61
MSGDISP-Resetting the Message Display
65
MSGDISP-Providing the Full Range of Display Options
68
Return Codes from MSGDISP
72
Modifying MSGDISP for Other Languages
73
Chapter 6. Managing and Controlling Data Sets
76
Specifying Esoteric Unit Names
76
Recycling Tapes
76
Establishing or Changing the Values Ofdfhsm Control Parameters (SETSYS)
77
Specifying the Tape Density When Allocating Scratch Tapes (DENSITY)
77
Specifying the Type of Unit for Mounting a Scratch Tape (UNITNAME)
77
Specifying Esoteric Tape Unit Name to DFHSM (USERUNITTABLEINOUSERUNITTABLE)
78
Adding or Changing the Volumes Managed by DFHSM (ADDVOL)
79
Specifying the Type of Device (UNIT)
79
Specifying the Tape Density (DENSITY)
80
Chapter 7. Recording Error or Statistical Information
82
Using EREP Reports
82
Using Error Recovery Procedures (ERP)
82
Using IMS/VS Logging
82
Chapter 8. Restrictions to Using Sorting Applications (DFSORT)
84
Sortwknn DD Statement
84
SORTOUT DD Statement
84
Appendix A. Data Control Block Symbolic Field Names
86
Magnetic Tape Interface
87
Appendix B. Programming Messages and Codes
88
Return Code from the CHKPT Macro Instruction for the 3480
88
ABEND Completion Codes Issued by Checkpoint/Restart for the 3480
88
Glossary
90
Index
94
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