ABCs of z/OS System Programming

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Go to the current abstract on ibm.com/redbooks http://www.redbooks.ibm.com/abstracts/sg246983.html?Open&pdfbookmarkFront cover Contents Notices Trademarks Preface The team who wrote this book Now you can become a published author, too! Comments welcome Stay connected to IBM Redbooks Chapter 1. DFSMS introduction 1.1 Introduction to DFSMS 1.2 Data facility storage management subsystem 1.3 DFSMSdfp component 1.4 DFSMSdss component 1.5 DFSMSrmm component 1.6 DFSMShsm component 1.7 DFSMStvs component Chapter 2. Data set basics 2.1 Data sets on storage devices 2.2 Data set name rules 2.3 DFSMSdfp data set types 2.4 Types of VSAM data sets 2.5 Non-VSAM data sets 2.6 Extended-format data sets and objects 2.7 Data set striping 2.8 Data set striping with z/OS V1R11 2.9 Large format data sets 2.10 Large format data sets and TSO 2.11 IGDSMSxx parmlib member support 2.12 z/OS UNIX files 2.13 Data set specifications for non-VSAM data sets 2.14 Locating an existing data set 2.15 Uncataloged and cataloged data sets 2.16 Volume table of contents (VTOC) 2.17 VTOC and DSCBs 2.18 VTOC index structure 2.19 Initializing a volume using ICKDSF Chapter 3. Extended access volumes 3.1 Traditional DASD capacity 3.2 Large volumes before z/OS V1R10 3.3 zArchitecture data scalability 3.4 WLM controlling PAVs 3.5 Parallel Access Volumes (PAVs) 3.6 HyperPAV feature for DS8000 series 3.7 HyperPAV implementation 3.8 Device type 3390 and 3390 Model A 3.9 Extended access volumes (EAV) 3.10 Data sets eligible for EAV volumes 3.11 EAV volumes and multicylinder units 3.12 Dynamic volume expansion (DVE) 3.13 Using dynamic volume expansion 3.14 Command-line interface (DSCLI) 3.15 Using Web browser GUI 3.16 Select volume to increase capacity 3.17 Increase capacity of volumes 3.18 Select capacity increase for volume 3.19 Final capacity increase for volume 3.20 VTOC index with EAV volumes 3.21 Device Support FACILITY (ICKDSF) 3.22 Update VTOC after volume expansion 3.23 Automatic VTOC index rebuild - z/OS V1R11 3.24 Automatic VTOC rebuild with DEVMAN 3.25 EAV and IGDSMSxx parmlib member 3.26 IGDSMSxx member BreakPointValue 3.27 New EATTR attribute in z/OS V1R11 3.28 EATTR parameter 3.29 EATTR JCL DD statement example 3.30 Migration assistance tracker 3.31 Migration tracker commands Chapter 4. Storage management software 4.1 Overview of DFSMSdfp utilities 4.2 IEBCOMPR utility 4.3 IEBCOPY utility 4.4 IEBCOPY: Copy operation 4.5 IEBCOPY: Compress operation 4.6 IEBGENER utility 4.7 IEBGENER: Adding members to a PDS 4.8 IEBGENER: Copying data to tape 4.9 IEHLIST utility 4.10 IEHLIST LISTVTOC output 4.11 IEHINITT utility 4.12 IEFBR14 utility 4.13 DFSMSdfp access methods 4.14 Access method services (IDCAMS) 4.15 IDCAMS functional commands 4.16 AMS modal commands 4.17 DFSMS Data Collection Facility (DCOLLECT) 4.18 Generation data group (GDG) 4.19 Defining a generation data group 4.20 Absolute generation and version numbers 4.21 Relative generation numbers 4.22 Partitioned organized (PO) data sets 4.23 PDS data set organization 4.24 Partitioned data set extended (PDSE) 4.25 PDSE enhancements 4.26 PDSE: Conversion 4.27 Program objects in a PDSE 4.28 Sequential access methods 4.29 z/OS V1R9 QSAM - BSAM enhancements 4.30 Virtual storage access method (VSAM) 4.31 VSAM terminology 4.32 VSAM: Control interval (CI) 4.33 VSAM data set components 4.34 VSAM key sequenced cluster (KSDS) 4.35 VSAM: Processing a KSDS cluster 4.36 VSAM entry sequenced data set (ESDS) 4.37 VSAM: Typical ESDS processing 4.38 VSAM relative record data set (RRDS) 4.39 VSAM: Typical RRDS processing 4.40 VSAM linear data set (LDS) 4.41 VSAM: Data-in-virtual (DIV) 4.42 VSAM: Mapping a linear data set 4.43 VSAM resource pool 4.44 VSAM: Buffering modes 4.45 VSAM: System-managed buffering (SMB) 4.46 VSAM buffering enhancements with z/OS V1R9 4.47 VSAM SMB enhancement with z/OS V1R11 4.48 VSAM enhancements 4.49 Data set separation 4.50 Data set separation syntax 4.51 Data facility sort (DFSORT) 4.52 z/OS Network File System (z/OS NFS) 4.53 DFSMS optimizer (DFSMSopt) 4.54 Data Set Services (DFSMSdss) 4.55 DFSMSdss: Physical and logical processing 4.56 DFSMSdss: Logical processing 4.57 DFSMSdss: Physical processing 4.58 DFSMSdss stand-alone services 4.59 Hierarchical Storage Manager (DFSMShsm) 4.60 DFSMShsm: Availability management 4.61 DFSMShsm: Space management 4.62 DFSMShsm: Storage device hierarchy 4.63 ML1 enhancements with z/OS V1R11 4.64 DFSMShsm z/OS V1R11 enhancements 4.65 ML1 and ML2 volumes 4.66 Data set allocation format and volume pool determination 4.67 DFSMShsm volume types 4.68 DFSMShsm: Automatic space management 4.69 DFSMShsm data set attributes 4.70 RETAINDAYS keyword 4.71 RETAINDAYS keyword 4.72 DFSMShsm: Recall processing 4.73 Removable media manager (DFSMSrmm) 4.74 Libraries and locations 4.75 What DFSMSrmm can manage 4.76 Managing libraries and storage locations Chapter 5. System-managed storage 5.1 Storage management 5.2 DFSMS and DFSMS environment 5.3 Goals and benefits of system-managed storage 5.4 Service level objectives 5.5 Implementing SMS policies 5.6 Monitoring SMS policies 5.7 Assigning data to be system-managed 5.8 Using data classes 5.9 Using storage classes 5.10 Using management classes 5.11 Management class functions 5.12 Using storage groups 5.13 Using aggregate backup and recovery support (ABARS) 5.14 Automatic Class Selection (ACS) routines 5.15 SMS configuration 5.16 SMS control data sets 5.17 Implementing DFSMS 5.18 Steps to activate a minimal SMS configuration 5.19 Allocating SMS control data sets 5.20 Defining the SMS base configuration 5.21 Creating ACS routines 5.22 DFSMS setup for z/OS 5.23 Starting SMS and activating a new configuration 5.24 Control SMS processing with operator commands 5.25 Displaying the SMS configuration 5.26 Managing data with a minimal SMS configuration 5.27 Device-independence space allocation 5.28 Developing naming conventions 5.29 Setting the low-level qualifier (LLQ) standards 5.30 Establishing installation standards 5.31 Planning and defining data classes 5.32 Data class attributes 5.33 Use data class ACS routine to enforce standards 5.34 Simplifying JCL use 5.35 Allocating a data set 5.36 Creating a VSAM cluster 5.37 Retention period and expiration date 5.38 SMS PDSE support 5.39 Selecting data sets to allocate as PDSEs 5.40 Allocating new PDSEs 5.41 System-managed data types 5.42 Data types that cannot be system-managed 5.43 Interactive Storage Management Facility (ISMF) 5.44 ISMF: Product relationships 5.45 ISMF: What you can do with ISMF 5.46 ISMF: Accessing ISMF 5.47 ISMF: Profile option 5.48 ISMF: Obtaining information about a panel field 5.49 ISMF: Data set option 5.50 ISMF: Volume Option 5.51 ISMF: Management Class option 5.52 ISMF: Data Class option 5.53 ISMF: Storage Class option 5.54 ISMF: List option Chapter 6. Catalogs 6.1 Catalogs 6.2 The basic catalog structure (BCS) 6.3 The VSAM volume data set (VVDS) 6.4 Catalogs by function 6.5 Using aliases 6.6 Catalog search order 6.7 Defining a catalog and its aliases 6.8 Using multiple catalogs 6.9 Sharing catalogs across systems 6.10 Listing a catalog 6.11 Defining and deleting data sets 6.12 DELETE command enhancement with z/OS V1R11 6.13 Backup procedures 6.14 Recovery procedures 6.15 Checking the integrity on an ICF structure 6.16 Protecting catalogs 6.17 Merging catalogs 6.18 Splitting a catalog 6.19 Catalog performance 6.20 F CATALOG,REPORT,PERFORMANCE command 6.21 Catalog address space (CAS) 6.22 Working with the catalog address space 6.23 Fixing temporary catalog problems 6.24 Enhanced catalog sharing Chapter 7. DFSMS Transactional VSAM Services 7.1 VSAM share options 7.2 Base VSAM buffering 7.3 Base VSAM locking 7.4 CICS function shipping before VSAM RLS 7.5 VSAM record-level sharing introduction 7.6 VSAM RLS overview 7.7 Data set sharing under VSAM RLS 7.8 Buffering under VSAM RLS 7.9 VSAM RLS locking 7.10 VSAM RLS/CICS data set recovery 7.11 Transactional recovery 7.12 The batch window problem 7.13 VSAM RLS implementation 7.14 Coupling Facility structures for RLS sharing 7.15 Update PARMLIB with VSAM RLS parameters 7.16 Define sharing control data sets 7.17 Update SMS configuration 7.18 Update data sets with log parameters 7.19 The SMSVSAM address space 7.20 Interacting with VSAM RLS 7.21 Backup and recovery of CICS VSAM data sets 7.22 Interpreting RLSDATA in an IDCAMS LISTCAT output 7.23 DFSMStvs introduction 7.24 Overview of DFSMStvs 7.25 DFSMStvs use of z/OS RRMS 7.26 Atomic updates 7.27 Unit of work and unit of recovery 7.28 DFSMStvs logging 7.29 Accessing a data set with DFSMStvs 7.30 Application considerations 7.31 DFSMStvs logging implementation 7.32 Prepare for logging 7.33 Update PARMLIB with DFSMStvs parameters 7.34 The DFSMStvs instance 7.35 Interacting with DFSMStvs 7.36 Summary Chapter 8. Storage management hardware 8.1 Overview of DASD types 8.2 Redundant array of independent disks (RAID) 8.3 Seascape architecture 8.4 Enterprise Storage Server (ESS) 8.5 ESS universal access 8.6 ESS major components 8.7 ESS host adapters 8.8 FICON host adapters 8.9 ESS disks 8.10 ESS device adapters 8.11 SSA loops 8.12 RAID-10 8.13 Storage balancing with RAID-10 8.14 ESS copy services 8.15 ESS performance features 8.16 IBM TotalStorage DS6000 8.17 IBM TotalStorage DS8000 8.18 DS8000 hardware overview 8.19 Storage systems LPARs 8.20 IBM TotalStorage Resiliency Family 8.21 TotalStorage Expert product highlights 8.22 Introduction to tape processing 8.23 SL and NL format 8.24 Tape capacity - tape mount management 8.25 TotalStorage Enterprise Tape Drive 3592 Model J1A 8.26 IBM TotalStorage Enterprise Automated Tape Library 3494 8.27 Introduction to Virtual Tape Server (VTS) 8.28 IBM TotalStorage Peer-to-Peer VTS 8.29 Storage area network (SAN) Related publications IBM Redbooks publications Other publications Online resources How to get IBM Redbooks publications Help from IBM Back cover