Introduction to the new mainframe LargeScale Commercial Computing

Introduction to the new mainframe Objectives Be able to: • Understand system management disciplines

Introduction to the new mainframe Introduction to systems management Systems management is a general

Introduction to the new mainframe Introduction to systems management Performance management Workload management Configuration

Introduction to the new mainframe System Data Accounting Reporting • Performance • Errors ©

Introduction to the new mainframe Z/OS component SMF (System Management Facilities) Collect info concerning:

Introduction to the new mainframe Data Collection in z/OS © Copyright IBM Corp. ,

Introduction to the new mainframe Work. Load Management (WLM) WLM retains the following data:

Introduction to the new mainframe Performance management includes measuring, analyzing, reporting, and tuning the

Introduction to the new mainframe Performance management Objectives: Optimize response time and throughput of

Introduction to the new mainframe Performance management : z/OS implementation Resource Measurement Facility (RMF):

Introduction to the new mainframe Configuration management In a large-scale commercial system, - the

Introduction to the new mainframe System Software configuration management Characteristics: Large number of components.

Introduction to the new mainframe System Software configuration management 4 types of SYSMODs: PTF

Introduction to the new mainframe Hardware configuration management Hardware Configuration Definition (HCD) : It

Introduction to the new mainframe Application configuration management is a discipline that is common

Introduction to the new mainframe Operations management Operations in a large-scale commercial operating system

Introduction to the new mainframe Problem management is a discipline that can be viewed

Introduction to the new mainframe Network management z/OS participates as any other node on

Introduction to the new mainframe Storage management In z/OS the software that manages the

Introduction to the new mainframe Security management Legend Intrusion Detection System Bt. B Users

Introduction to the new mainframe Change management is a discipline that is -meant for

Introduction to the new mainframe Summary 9 system management disciplines Service Level management (SLA)

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Introduction to the new mainframe Objectives Be able to: • Understand system management disciplines • Understand the different data types z/OS uses • Understand how errors are handled © Copyright IBM Corp. , 2006. All rights reserved. 2

Introduction to the new mainframe Introduction to systems management Systems management is a general term that is widely used, . Sometimes it means: - the operator interface, - means provisioning capacity. In a large-scale commercial system, “A collection of disciplines aimed to monitor and control a system’s behavior. ” © Copyright IBM Corp. , 2006. All rights reserved. 3

Introduction to the new mainframe Introduction to systems management Performance management Workload management Configuration management Operations management Problem management Network management Storage management Security management Change management © Copyright IBM Corp. , 2006. All rights reserved. 4

Introduction to the new mainframe Z/OS component SMF (System Management Facilities) Collect info concerning: Billing users Reporting reliability Analyzing the configuration Scheduling jobs Summarizing direct access volume activity Evaluating data set activity Profiling system resource use Maintaining system security © Copyright IBM Corp. , 2006. All rights reserved. 6

Introduction to the new mainframe Work. Load Management (WLM) WLM retains the following data: CPU time used Memory used + pages/sec I/Os done + I/O rate Transaction rate Goal achievement © Copyright IBM Corp. , 2006. All rights reserved. 8

Introduction to the new mainframe Performance management includes measuring, analyzing, reporting, and tuning the performance of IT resources. Two categories: Real-time monitoring, alerting, problem identification, and problem resolution. . . What's happening NOW Bench marking, modeling, rerunning problem scenarios, and trending performance metrics to feed capacity planning. . . Where are we heading © Copyright IBM Corp. , 2006. All rights reserved. 9

Introduction to the new mainframe Performance management Objectives: Optimize response time and throughput of IT resources Take corrective actions to alerts and problem requests © Copyright IBM Corp. , 2006. All rights reserved. 10

Introduction to the new mainframe Performance management : z/OS implementation Resource Measurement Facility (RMF): Batch monitoring CPU Storage Workload I/O Activity Other Online monitoring Delay monitoring. . . Queue wait time © Copyright IBM Corp. , 2006. All rights reserved. 11

Introduction to the new mainframe Configuration management In a large-scale commercial system, - the number of hardware devices, - system software items (compiled modules, source modules, data items, etc. ), and - application software items have been large since the first days of the mainframe. © Copyright IBM Corp. , 2006. All rights reserved. 12

Introduction to the new mainframe System Software configuration management Characteristics: Large number of components. Great packing flexibility. Backward compatibility need. Different software developers and vendors. Long-supported versions. © Copyright IBM Corp. , 2006. All rights reserved. 13

Introduction to the new mainframe Hardware configuration management Hardware Configuration Definition (HCD) : It is written in a system file. Is split between the hardware and the software. Has to be tested. Has to be activated sysplex-wide © Copyright IBM Corp. , 2006. All rights reserved. 15

Introduction to the new mainframe Application configuration management is a discipline that is common to any platform. On a IBM System z platform these tools must be able to manage Java (Web. Sphere Application Server) as well as COBOL applications. IBM’s tool is named Software Configuration and Library Manager (SCLM). © Copyright IBM Corp. , 2006. All rights reserved. 16

Introduction to the new mainframe Operations management Operations in a large-scale commercial operating system is crucial for performance and availability. Operations means 2 related activities: Batch scheduling Console operations © Copyright IBM Corp. , 2006. All rights reserved. 17

Introduction to the new mainframe Problem management is a discipline that can be viewed from various angles: How problems are solved How problems are reported How problems are tracked © Copyright IBM Corp. , 2006. All rights reserved. 18

Introduction to the new mainframe Network management z/OS participates as any other node on the network and complies to the standards in this area On such networks, the z/OS network management subsystem usually acts as the focal point. © Copyright IBM Corp. , 2006. All rights reserved. 19

Introduction to the new mainframe Storage management In z/OS the software that manages the external storage devices is called DFSMS. (Data Facility Storage Management Subsystem) © Copyright IBM Corp. , 2006. All rights reserved. 20

Introduction to the new mainframe Security management Legend Intrusion Detection System Bt. B Users Policy Manager INTERNET Policy Director Manage r Web. Seal TIVOLI Secure. Way Directory Switch INTRANET Web. Seal Switch . . . IDS LPAR DMZ Internet IBM System z Fire. Wall LPAR DMZ Internet Fire. Wall Web Services Users Production LPAR VPN © Copyright IBM Corp. , 2006. All rights reserved. 21

Introduction to the new mainframe Change management is a discipline that is -meant for the whole infrastructure. -z/OS manages changes applied to software through SMP/E asking for prerequisites and logging the changes. © Copyright IBM Corp. , 2006. All rights reserved. 22

Introduction to the new mainframe Summary 9 system management disciplines Service Level management (SLA) is not covered Security management is special Tools are available © Copyright IBM Corp. , 2006. All rights reserved. 23