This comprehensive course provides an accelerated learning approach to the broad sublect of z/OS data storage management. The boot camp is ideal for anyone new to storage administration, or for those who require a clear and solid understanding of the z/OS data storage discipline for their particular role within technical support. This course ensures that attendees gain an in-depth understanding of the concepts and methodologies that comprise storage management in today's z/OS-based data centre.<br>The regular, hands-on lab exercises give students the opportunity to try out their newly-gained skills immediately. On successfully completing this boot camp, attendees will have reached the skill level needed to enable them to efficiently and effectively manage their data storage environment.<br><br>This course is available 'on demand' (minimum 2 students) for public presentations or for one-company, on-site presentations.<br><br>The per person fee for this course is £5,100.00 (inclusive of VAT).


A good understanding of the z/OS environment and practical skills in using TSO/ISPF.

Delegates will learn how to

  • explain how a DASD I/O works in z/OS
  • explain IBM’s storage management concept as implemented through SMS
  • exploit the I/O hardware features with regards to SMS and performance
  • describe how to define I/O devices and get them recognised by z/OS
  • define and maintain data classes, storage classes, management classes and storage groups
  • write and maintain optimised ACS routines
  • audit and optimise the SMS environment
  • implement HSM migration, recall and backup/recovery
  • describe HSM performance issues and tune HSM
  • issue (and understand) HSM commands
  • describe and explain the concepts of the z/OS access methods
  • analyse the structure of the RRDS, ESDS, KSDS and LDS data sets
  • use Access Method Services utility program IDCAMS to define, load, backup
  • monitor and manipulate VSAM data sets with particular emphasis on the KSDS file type
  • describe the components comprising an ICF Catalog
  • explain the relationship between the data related components
  • perform appropriate catalog recovery procedures
  • describe the factors that affect catalog performance.


Day 1

I/O Processing

Why I/O processing?; what is I/O?; MVS support for I/O processing software; MVS and I/O processing; Application I/O; the application program; the DD statement; going to the Access Method; the Access Method; getting the channel program started; EXCP - an IOS Driver; IOS 'Front End'; actually starting the I/O; the I/O engine at work; the Channel Sub-System (CSS); Hardware System Area (HSA); "The I/O Farm"; the I/O Interrupt; IOS Post processing; back to the Access Method; the I/O process from A to Z; starting the I/O; going back from starting the I/O; I/O complete; caching concepts; Read Hit; Write commands; Write Hit; Read Miss; Write Miss; cache modes; review questions - Input/Output processing.

Focus on Storage Management

What is storage management?; Space management roles; DFSMS products; DFSMS Optimizer; NaviQuest feature; advantages of an SMS environment; availability management; performance management.

Data Storage Hardware

Direct Access Storage Devices (DASD): I/O operations on disks; RMF reports; DASD controllers; Caching concepts; Read Hit; Write commands; Write Hit; Read Miss; Write Miss; Cache modes; Record level caching; Peer to Peer Remote Copy (PPRC); Concurrent Copy; Extended Format Data Sets; Sequential Data Striping; RAID technology; RAID categories 0, 1, 2 & 3; RAID categories 4, 5 and 6; IBM's Flashcopy; Extended Address Volumes; Tape devices; Virtual Tape Server; Virtual Tape configurations.

Hardware I/O Performance

FICON technology; MIDAW; Media Manager; MIDAW enablement; The IOSQ time problem; Overcoming restrictions; Multiple Allegiance; Parallel Access Volumes (PAVs); PAV and cache; Defining PAV base; Defining PAV Aliases; HiperPAV; PAV RMF support; Intelligent Resource Director (IRD); IRD LPAR CPU management; Dynamic Channel Path Management (DCM); DCM requirements; DCM definitions and concepts; Configuring DCM; RMF Channel Path Activity report; DCM and the I/O queueing report; I/O priority prior to IRD; I/O priority queuing; WLM I/O priority management; UCB & DASD CU I/O priority; CSS I/O priority; Enabling Channel Subsystem Priority Queuing.

Day 2

Introduction to HCD

I/O configuration principles; I/O configuration practicalities; I/O configuration addressing; HCD definition process; Objects managed by HCD; Load member of parmlib; IODF processing at IPL; HCD primary panel; Creating a new work IODF; Defining the new configuration menu; Defining a Channel; Defining a Control Unit; Defining an I/O Device; Pull-down menu action bar; Goto pull down menu; Filter pull down menu; Backup pull down menu; Query pull down menu; Help pull down menu; Context menus; PF keys; Keyboard navigation.

Auditing SMS

Working with users; identify general requirements; how to gather user data; Negotiate service levels with users; Space requirements; Meeting space requirements; Other space issues; Availability issues; Recovery; Backup/Recovery; Other service level issues; Monitor service levels; DCOLLECT; Running DCOLLECT; DCOLLECT output records; Managing data sets; PDSE processing; PDSE load libraries; Access Methods enhancements; VSAM Record Level Sharing; VSAM greater than 4 GB; What is Pooling?; Why pooling?; How many pools?; Positioning for SMS - review questions.

Day 3

VSAM Overview

MVS and I/O processing; The access methods; The IOS Drivers; The I/O Supervisor (IOS); The Back-End process; MVS access methods; Queued Sequential Access Method; Basic Direct Access Method; Basic Partitioned Access Method; PDSE processing; And now to VSAM; VSAM features; Entry Sequenced Data Set (ESDS); Key Sequenced Data Set (KSDS); Relative Record Data Set (RRDS); Catalog concepts; ICF catalogs and VTOCS; ICF catalogs (BCS); VSAM Volume Data Set (VVDS); Cluster Catalog (BCS) entries; Alternate indexes and paths.

VSAM Dataset Structure

Control Areas; Control Intervals; Control Interval structure; CI structure of fixed length records; CI structure of variable length records; Control Area structure; Relative Byte Address; Spanned records; Storage of data on DASD volumes; Entry Sequenced; Key Sequenced; Index component; Free space; RRDS characteristics; KSDS processing example; The Control Interval is rewritten; Deleting a record; Record insertion; CI split; CA split.

Using Access Method Services

Access Method Services (AMS); AMS command format; Example - define an ESDS; Example - define a KSDS; Modal commands; Modal commands example; Cancelling IDCAMS steps; Using the ELSE and SET commands; Comments; Error messages; Data set already exists.

Defining VSAM Datasets

IDCAMS commands; DEFINE command - main parameters; Defining a cluster; Cluster sub-parameters; IDCAMS required parameters; Space allocation and reuse; SHAREOPTIONs (x region, y system); Control interval Size; More IDCAMS parameters; DATA and INDEX sub-parameters; Defining an ESDS; Defining an RRDS; Defining a KSDS; FREESPACE; DELETE MASK | NOMASK.

Day 4

VSAM Dataset Management

VSAM data management commands; Loading data sets; REPRO: REPRO parameters, Copy ESDS to KSDS, Copy partial RRDS to RRDS, Copy keyrange from KSDS to KSDS, Merge two KSDSs, Copy KSDS to tape; Printing data sets: PRINT parameters, PRINT examples, PRINT output example - CHARACTER, PRINT output example - HEX; Altering catalog entries; Deleting catalog entries: DELETE parameters, DELETE examples.

DFSMS Constructs

Service levels for data; SCDS Base Definition Panel; Data Class; defining a Data Class; defining Data Class Attributes; data set compression; data set compression information; Data Class control; Data Class implementation; JCL keywords; JCL changes; Generation Data Sets; new JCL requirements; non-VSAM Data Classes; VSAM Data Classes; Management Class; Management Class characteristics; defining Management Class Introduction Menu; defining Management Class Panel; Storage Class; Storage Class characteristics; cache attribute determination (simplified); Storage Class application selection; Storage Class define; Storage Class maintenance; Storage Groups; Storage Group major activities; isolate non-SMS data: defining a Storage Group; defining VIO Storage Group attributes; defining Pool Storage Group attributes; Storage Group rules; Device selection; Defining a Copy Pool.

Day 5

Writing ACS Routines

ACS routines - what are they?; Automatic Class Selection - how many?; an ACS example; ACS routine rules; ACS mask rules; ACS Read/Write variables; ACS Read-only variables; ACS special purpose variables; other ACS variables; OAM & tape ACS variables; ACS operations; ACS statements ( PROC, END, SET, FILTLIST); ACS statements (SELECT, END); coding ACS routines; ACS application selection; ACS translation panel; ACS validation panel; testing ACS routines; defining test cases; ACS coding tips; ACS exit routines; ACS exit steps; programming ACS exits; ACS exit parameter structure; actions in ACS exits; ACS routines - hands-on exercises.

DFSMS Set-up & Control

Control Data Sets; sizing SMS Control Data Sets; defining Control Data Sets; Control Data Set application selection; SCDS base definition panel; IGDSMSxx; IEFSSNxx; activating SMS; SETSMS command; SMS-related commands; displaying SMS information; displaying Storage Group information; displaying SMS volume information; displaying device information; Start/Restart SMS address space; recovering ACDS; recovering COMMDS; enhanced ISMF.

Day 6

HSM Migration / Recall

Key commands; Migration types; Defining migration; Defining Primary volumes; Defining ML1 volumes; Small data set packing; Defining ML2 volumes; Controlling daily migration; Secondary migration - cleanup of ML1 & MCDS; Migration from ML0; Interval migration; Command migration; Command migration - SMS; Freevol command; Recalling data sets; Recall process; Common Recall Queue (CRQ); Enabling CRQ; Activating CRQ - SETSYS COMMONQUEUE; Controlling Recall non-SMS; Delete by Age - an alternative to migration for non-SMS; Delete if Backed Up - an alternative to migration for non-SMS; Supported data sets; Migration/Recall performance summary; SDSP performance summary.


Back-up flow; Back-up events; Back-up volume definitions; Back-up control; CDS back-up; CDS recovery utility; Back-up data set naming; Back-up to DASD; Command back-up - volume; BACKVOL examples; Back-up command; Controlling command back-up - SETSYS DSBACKUP; Controlling command back-up - ML1 overflow; Command back-up - data set; Back-up support; Inline back-up; Data set recovery; Back-up performance summary; Deleting unwanted back-ups; EXPIREBV DISPLAY.

Day 7

HSM Miscellaneous Functions

DSS Cross Memory Mode; Multi-host considerations; Serialization logic overview; CDS serialization; User serialization; Multiple HSMplexes; Secondary host promotion (failover) for DFSMShsm; HSM's five activity logs; Logging; Log contents; ARCPRLOG output; ARCPEDIT output; Controlling tape mounts; Tape selection/seletion options; Controlling tape usage; Recycling tapes; Command authorization; Problem Determination Aid Facility (PDA).

HSM Commands

How HSM commands are used; Operator commands; Query command; QUERY ACTIVE; QUERY for available tapes and space; QUERY AUTOPROGRESS; Storage administration commands; Original AUDIT command; Enhanced AUDIT command; Enhanced versus original AUDIT; List command; List back-up volumes; List data set information from MCDS; List data set Information from BCDS; List data set information from both MCDS and BCDS; List migration or primary volume information; LIST ML2(tape) MCDS; LIST PRIMARYVOLUME(volser) BCDS; HOST (hostid) LIST TTOC SELECT(..........); LIST TTOC (volser) DATASETINFORMATION; LIST spanning excessive volumes; LIST FAILEDRECYCLE and FAILEDCREATE; LIST user; REPORT command; REPORT daily statistics; REPORT volume statistics; System Programmer commands; Commands for end-users.

Availability Management

Managing Volume Backups with Fast Replication; Defining a Copy Pool; Invoking Fast Replication Backup; Fast Replication Backup Options; Autodump; Autodump controlling commands; Recovery from dump data; Recovery commands; LIST PRIMARYVOLUME(volser) ALLDUMPS BCDS; LIST PVOL() BACKUPCONTENTS BCDS; LIST DUMPCLASS(class); LIST DUMPVOLUME....; LIST DUMPVOLUME(volser) BCDS DUMPCONTENTS; Volume dump performance summary; Enhanced Backup/Recovery features; Copying tapes; TAPEREPL in Disaster Recovery; Duplex tape; Duplex tape flow; Duplex tape support; Disaster backup overview; Disaster Recovery process; Recovering ML1 or ML2; Recovering lost backups on ML1; Damaged CDS, Journal Full; Damaged Journal, undamaged; CDS; Overwritten migration tape.

Day 8

HSM Exits

HSM available user exits; Invoking user exits; ARCMVEXT: space management volume exit; ARCMDEXT: data set migration exit; ARCADEXT: data set deletion exit; ARCBDEXT: data set back-up exit; ARCRDEXT: recall exit; ARCCDEXT: data set reblock exit; ARCTDEXT: tape data set exit; ARCTVEXT: tape volume exit; ARCCBEXT: Control Data Set back-up exit; ARCINEXT: initialization exit; ARCMMEXT: second level migration data set exit; ARCSAEXT: space management & back-up exit; ARCRPEXT: return priority exit; Installing EXITS.

HSM Startup & Monitoring

HSM start-up procedure; HSM start-up options; Defining Control Data Sets; Multicluster Control Data Sets; VSAM Record Level Sharing (RLS); Requirements for CDS RLS serialisation; Implementing RLS mode; Control Data Set performance summary; General HSM performance summary; Monitoring HSM; Controlling HSM.

Day 9

ICF Environment

Catalog overview; Catalog search order; Catalog environment; Multi-level aliases; Catalog address space; VTOC and VTOCIX; ICF environment review.

Catalog Component Structure

Catalog environment; Basic Catalog Structure (BCS); VSAM Volume Data Set (VVDS); BCS record structure; BCS record types; BCS record cells; Sphere records - cluster; 3.9 Cluster name cell; Ownership cell; Security cell; Data/index name cell; Volume cell; Class exercise - BCS cluster record; Sphere records; Alternate Index name cell; Association cell; Relation cell; Path record; Pass name cell; Truename record; Truename cell; Class exercise - KSDS cluster record; Sphere records - GDG; GDG base name cell; Generating Aging Table (GAT) cell; GDS name cell; Volume cell; Extension name cell; Non-VSAM record and name cell; Alias record and name cell; Catalog connector record and name cell; Class exercise - user catalogs; BCS/VVDS relationship; VVDS record types; VVDS record cells; VVDS record structure; VVCR and extensions; VSAM Volume Record (VVR); VVR header cell; VVR data set info cell; VVR AMDSB cell; VVR volume info cell; Class exercise - VVCRs and VVRs; Non-VSAM Volume Record (NVR) and header cell; NVR data set info cell; Volume Table Of Contents (VTOC); VTOC structure; Describing a data set; Managing the volume; VTOC usage; Solving VTOC performance problems: VTOCIX; VTOC index structure; How the index works; VTOC index entry record.

Day 10

Problem Diagnosis

Problem analysis; Data set processing flow; Allocation; OPEN; I/O processing; File extensions; CLOSE; DEALLOC/CATLG; Problem severity; Diagnostic tools; IDCAMS EXAMINE; IDCAMS DIAGNOSE (VVDS); IDCAMS DIAGNOSE (ICFCATALOG).

Backup Techniques and Considerations

User catalog backup; Export/import; Export/Import advantages; Backup frequency; User catalog strategy; Validation; User catalog backup recap; Master catalogs; Alternate master catalogs; Master Catalog specification; IGGCATxx parameters; VVDS backup; REPRO NOMERGECAT; REPRO MERGECAT; EXPORT DISCONNECT; IMPORT CONNECT with ALIAS; IMPORT CONNECT.

Recovery, Repair and Maintenance

Recovery vs. repair; Entries; Recovery/repair outline; VTOC and VTOCIX; VVDS catalog utility; VVDS; VVDS entry - VVCR; VVDS entry - delete VVR/NVR; BCS recovery import; Import BCS; Delete a user catalog; Delete a user catalog with NOFORCE; Delete a user catalog with FORCE; Uncatalog a data set; Catalog an existing VSAM object; Delete TRUENAME; Deleting VSAM data sets from a volume; Forward recovery; ICF SMF records; Recovery tips.

Performance and Integrity Considerations

Sizing the BCS; Sizing the VVDS; Sizing the VTOC and index; Catalog performance; Performance - BCS data component ; Performance - BCS index component; Performance - CAS; Sharing catalogs with other systems; Catalog SHROPTS; Performance - CDSC; Activating CDSC; Sharing catalogs in a CDSC environment (VVDS); Sharing catalogs in a CDSC environment (ECS); Monitoring and controlling CDSC; CDSC report information; Monitoring catalog performance; VVDS performance; Implementing SYS% conversion; Extended alias support.

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