Dfsms acs routines. 4-2 SMSDEBUG Primary Options .
Dfsms acs routines. Then this MC is changed using for example an IDCAMS ALTER instruction looking like the following: ALTER dsname MGMTCLAS DFSMSrmm supports the SMS pre-ACS interface. You must modify your existing ACS routines if you want to use these two variables. In order to get the most out of this session; it is recommended to also attend DFSMS Basics: SMS Mar 4, 2008 · JCL & VSAM 12 ACS-routines and absent RACF-profiles JCL & VSAM 4 Search our Forums: Planning for DFSMShsm PDSE Management The basic scenario of our sample implementation is to create two separate management classes called MCPDSE1 and MCPDSE2. Perform IOA functions based on MGMTCLAS selection criterion, and verify that the mounted tape belongs to the desired pool. The appropriate ACS routine is invoked based on the combination of storage class (SC) and management class (MC) specifications included on the application request: If only MC is specified, the management class ACS routine is invoked, using the requested MC and the existing SC. Sep 9, 2015 · DFSMShsm provides storage management to help you optimize resources, improve efficiency, direct access storage device (DASD) space, and systems availability. SMS. DFSMS Basics: How to Write ACS Routines Part 2 - Hands-on Lab (Section 2) Steve Huber and Neal Bohling IBM Aug 11,2011 Session Number 9231 This section discusses the SMS constructs used by OAM and their relationship with the automatic class selection (ACS) routines. Defining StorageTek DFSMS ACS Routines to Specify MGMTCLAS STORCLAS and MGMTCLAS can be specified by executing an Automatic Class Selection (ACS) routine. The ACS language source statements are translated by the ACS translator into object form that is used during ACS processing. -Neal Bohling-IBM Corporation; Thomas C. 4-2 SMSDEBUG Primary Options You write ACS routines using the ACS language, which is a high-level programming language. The sample ACS routine changes in this section assume that: This topic documents intended Programming Interfaces that allow you to write programs to obtain the services of DFSMS. Tip: You can use the DFSMS NaviQuest tool to help you design and test your ACS routines. Then, DFSMSrmm optionally sets the initial value for the ACS routine MSPOOL and MSPOLICY read-only variables if the pre-ACS installation exit has not done so. DFSMS COMMANDS Listing Information from the BCDS and MCDS in TSO The following information applies to both SMS and non-SMS-managed Sun StorageTek Virtual Tape Control Software (VTCS) - Version 6. Use ACS variables that sustain their meaning over time and in various environments, such as &DSN rather than &ACCT_JOB. Of the two types of variables, read/write and read-only, only the read/write variables can be modified. This appendix contains sample definitions of the SMS classes and groups that are used in the sample ACS routines. EXIT Causes immediate ending of the ACS routine and can be used to fail processing of a file or directory. . The storage class ACS routine determines whether to allocate these data sets to VIO or to volumes in a pool storage group category depending on the data set usage and size. Understanding ACS routines Creating ACS routines Feb 25, 2020 · JCL & VSAM: Hello Experts, Many of our shops have many GDGs getting allocated each day, and each of those GDGs will be getting allocated DFSMS Basics: SMS Configuration and ACS Routines Introduction / Demonstration Neal Bohling and Tom Reed IBM Adjusting ACS Routines Below are sample adjustments to ACS routines that enable the Control-M/Tape/DFSMS interface by assigning Management classes to relevant data sets. Yet often little testing is done when implementing an ACS routine change, and debugging of existing ACS code is difficult and often haphazard. Feb 14, 2018 · I have been using ISMF to define a whole heap of new MC, DC, SC and SG to that SCDS, but this is very much a work in progress until I have completed my ACS routines to take advantage of them all. OAM defines the management policy parameters in the SMS constructs of storage group, storage class, management class, and data class. com August 14, 2013 Session# 13158 Use ACS routines to assign values to read/write (R/W) variables. 0 and later: VTCS - VTV's are not being duplexed - DFSMS ACS routines not running ACS Test Library and ACS Test Member are output fields containing the values that you specified on the ACS Test Selection panel (see Figure 2). However, DFSMSrmm does not use the installation exit. The values can be used by the ACS routines as part class determination or they can be overwritten by the ACS routines. In this Technote we describe how to update your SMS environment to allow a management class to be used in place of the VRS management Jun 15, 2014 · V-C. But we need to add a further volume or two to an SMS SG pool. The sample ACS routine changes in this section assume that: ACS routines should ensure that the stated class is acceptable for use. ENCRYPT and gave READ access to the users who would be encrypting data sets. It has an initial value that can be altered DFSMS Basics: How to Write ACS Routines - Hands-on Lab (Section 1) Steve Huber and David Legendre IBM March 14,2012 Session Number 10937 DFSMS Basics: How to Write ACS Routines Hands-on Lab Workbook Neal Bohling and Tom Reed IBM Feb 6, 2013 Session Number 12320 After completing your ACS routines, you can use ISMF to write and run test cases to verify that the routines are properly assigning the SMS storage classes and groups. Press Enter to access the ISPF/PDF editor. The attributes from the DFSMS classes then govern the space management, performance, and availability of the data set or object from its creation to its deletion. DATASET. Believe me, the high level qualifier matters in ACS routines. You can use read-only variables in comparison operations, but you cannot change their values. If you defined a new storage group for CA Vtape, then update the storage group ACS to assign the new storage group. 3051 - DFSMS -MVS Basics - The ABCs of ACS - Free download as PDF File (. The document discusses ACS (Automatic Class Selection) routines, which determine how data sets are managed in a DFSMS environment. You can base your SMS configuration on these routines, modifying them as needed. Maintain mountable optical volumes and mountable tape volumes. txt) or view presentation slides online. Description is an optional field of 120 characters that you can use to describe the test case. These statements will appear as additional messages outside of Produce data set, volume, or capacity planning measurement data. 2. Tests des ACS Routines V-F. This session will focus on the Jun 2, 2010 · Also you keep mentioning "SMS-managed DASD" -- as if the fact that the ACS routines allow individual high level qualifiers to be under SMS control irrespective of anything else is of no consequence. ACS routines are invoked during the data set allocation process in a specific order to select appropriate classes for storage If you set up the ACS routines to override or validate the users' requested data class and storage class automatically, then you modify these ACS routines. The Data Class can provide file characteristics for the file being defined, including record length, key length, key offset, share options, free space, and others, eliminating the need to specify those The DFSMS Automatic Class Selection (ACS) routines are a critical system component - they are executed every time a dataset is created, whether SMS-managed or not. . Consult your local IBM representative or IBM Business Partner for information about the product and services available in your area. Refer to Table 1 for names of the sample configurations, ACS routines, and REXX exit. 11 introduces &SPACE_TYPE and &SECOND_QTY &SIZE / &MAXSIZE recalculated after DATACLAS routine runs But this is not accounted for in ISMF test For non-VSAM &SIZE = Primary + directory When a new data set is allocated or an object is to be written, DFSMS invokes ACS routines to assign a configuration of DFSMS classes to the data set or object. Allocate supports this. WRITE Writes messages to the DFSMS/VM log. Use the DFSMS NaviQuest tool to perform enhanced testing of your ACS routines, and to perform many storage management tasks in batch, such as: DFSMS Basics: How to Write ACS Routines Part 2 - Hands-on Lab (Section 1) Steve Huber and Neal Bohling IBM Aug 11,2011 Session Number 9231 You use the ACS routines to assign the eight-character construct names, which are then passed to the library at mount time. In DFSMS/VM, the only variable which can be modified is &MGMTCLAS. DFSMS Basics: How to Write ACS Routines Hands-on Lab (Section 1) Neal Bohling and Tom Reed, IBM August 8, 2014 Session Number 16115 If you set up the ACS routines to override or validate the users' requested data class and storage class automatically, then you modify these ACS routines. With ACS routines, you can enforce installation standards for data allocation and override user specifications for data, storage, and management classes and requests for specific DASD volumes. Remarks: Allocate gets control after normal DFSMS's ACS processing providing allocation assistance to DFSMS. Using the ACS REXX exit allows you to use the set of operators, instructions, and built-in functions of REXX. A new SMS dataset is allocated under a Management Class established by the DFSMS ACS Routines. The values are based on what is known at the time ACS is invoked. Valid values: TRK, CYL, K, M, U, BLK, and blank &STEP The step name of the job running at the time ACS routines was invoked, if available. The storage class ACS routine is allocated in the STORCLAS member. These messages are informational messages and are logged if the installation has specified this level for logging. Writing ACS routines lists the rules for programming in the ACS language. DFSMS Basics: How to Create/Modify an SMS Configuration and Write ACS Routines - Demo Steve Huber and Neal Bohling IBM The other routines are optional. END End of statement group (for example, DO, SELECT) or ACS routine (PROC). The speaker will demonstrate the basics of building and modifying SMS Configurations and what ACS routines are all about. Sun StorageTek Storage Management Component (SMC) - Version 6. The DATACLAS, STORCLAS, and MGMTCLAS can either be explicitly provided on the DEFINE command, or selected by the ACS routines. Problem Variables &SIZE / &MAXSIZE ACS test case must specify KB, ACS routine can compare KB/MB z/OS 1. I have of course initialised the volumes as SMS, and included in the volume list. Sep 18, 2024 · DFSMS/VM allows an installation-written ACS REXX exit to be used along with the ACS routine or instead of it. It works with Data Facility Storage Management Subsystem (DFSMS) closely to manage your data This course introduces you to the family of DFSMS products that are used to manage z/OS data and then focuses on the creation and implementation of data, storage and management classes, as well as storage groups, to automate processes in the storage environment. You write ACS routines using the ACS language, which is a high-level programming language. An SMS-managed data set is defined as a data set that has a storage class assigned. Errors in ACS logic can lead to high-visibility failures. The construct names and actions are defined outboard using the library manager. The feature can be controlled by disabling the feature, enabling the feature for all jobs, or enabling the feature for a specific jobname. When you code request temporary data set allocation, the ACS read-only variable data set type, &DSTYPE, is set to TEMP. In order to get the most out of this session, it is recommended that you first Mar 25, 2020 · Using DFSMS ACS routines that specify the data key Using DFSMS ACS routines that do not specify the data key Using the key label parameter in the JCL Using DFSMS ACS routines that specify the data key 1) We created RACF FACILITY profile STGADMIN. DFSMShsm is configured, data sets created, and tests are run to prove that DFSMShsm can successfully Data classes are assigned by DFSMS in the Automatic Class Selection (ACS) routines or may be specified by the DATACLAS JCL parameter. A storage class is assigned when either (1) you specify the STORCLAS parameter or (2) an installation-written automatic class selection (ACS) routine selects a storage class for a new data set. In order to get the most out of this session, it is recommended to attend Storage Group - Specify Volume Names and Free Space Thresholds Automatic Class Selection - Specify ACS Routines and Test Criteria Control Data Set - Specify System Names and Default Criteria Aggregate Group - Specify Data Set Recovery Parameters Library Management - Specify Library and Drive Configurations Use the DFSMS NaviQuest tool to perform enhanced testing of your ACS routines, and to perform many storage management tasks in batch, such as: Updating and testing your base configuration Design your ACS routines to function reliably for the long term. Sep 7, 2022 · DFSMS/VM allows an installation-written ACS REXX exit to be used along with the ACS routine or instead of it. Come take advantage of this unique opportunity from SHARE. In order to get the most out of this session, it is recommended to attend Storage Group - Specify Volume Names and Free Space Thresholds Automatic Class Selection - Specify ACS Routines and Test Criteria Control Data Set - Specify System Names and Default Criteria Aggregate Group - Specify Data Set Recovery Parameters Library Management - Specify Library and Drive Configurations Use the DFSMS NaviQuest tool to perform enhanced testing of your ACS routines, and to perform many storage management tasks in batch, such as: Updating and testing your base configuration DFSMS Basics: How to Write ACS Routines Part 2 - Hands-on Lab (Section 2) Steve Huber IBM Corporation If you are new to writing SMS ACS routines, or just want a refresher, and want to practice on a system where you can't hurt anything, this session is one you should really attend. Les nouvelles unités de contrôle VI-B. These files are located on the LOCALSMP disk (DFSMS 1C2). The values on this list are predefined by IBM for each respective DFSMS Function/Command. 0 and later: VTCS - VTV's are not being duplexed - DFSMS ACS routines running DFSMS Basics: How to Write ACS Routines - Hands-on Lab (Section 2) Steve Huber and David Legendre IBM March 14,2012 Session Number 10937 Testing and Debugging Your Installation’s ACS Routines Session 8961 Steve Pryor DTS Software, Inc. It has an initial value that can be altered With the &SECOND_QTY variable, &SPACE_TYPE allows the DATACLAS ACS routine to make the appropriate DATACLAS assignment. ACS may be implemented by writing an ACS routine in the ACS language (a high-level programming language). Liens utiles Cet article a été rédigé dans le but d'expliquer DFSMS et ses principales Override DFSMS Constructs set by ACS routines. In order to get the most out of this session, it is recommended to also attend DFSMS Basics: SMS DFSMS Basics: How to Write ACS Routines Part 2 - Hands-on Lab (Section 2) Steve Huber IBM Corporation If you are new to writing SMS ACS routines, or just want a refresher, and want to practice on a system where you can't hurt anything, this session is one you should really attend. Once written, you use the ACS translator to translate the routines to object form so they can be stored in the SMS configuration. Build commands and jobs from ISMF reports Batch Storage Admin Do many ISMF commands in batch Save and recall ISMF queries FILTLIST copy command to keep filters the same across ACS routines Aug 22, 2002 · Insert the following text: "ACS_ROUTINE_DEBUG is a feature that will allow a user to externalize all ACS WRITE statements to the job log. You will have the opportunity to get some hands-on experience writing ACS routines. Sep 26, 2024 · Introduction of this new feature in no way prevents you from continuing centralizing SMS and non-SMS data set allocation management in Allocate without the need to implement DFSMS ACS routines. N/A for DFSMS. Controlling DFSMS Functions and Commands (FACILITY Resource Class) The FACILITY class as used by IBM is identified by the name IBMFAC when using CA Top Secret. If you are new to SMS and would like to see how to build, modify, and diagnose ACS routines, then this is the session for you! The speakers will take you through the basics of an SMS configuration and then demonstrate writing new ACS routines and debugging existing routines. The ACS routines will then assign a data class, storage class, management class, and storage group to the request. ACS/QA ISPF Interface . ibm. Remerciements VIII. A list of DFSMS Function/Command resource values and definitions follows. Use DFSMSrmm to maintain tape volumes. These assigned constructs will determine if the request is SMS-managed, whether a particular media type or recording format is to be used, and which library will receive the request. You will have the opportunity to get hands-on experience writing and debugging ACS routines in a live z/OS environment. &ACCT_JOB might be a significant variable to test to determine a management class in the environment when the data ACS may be implemented by writing an ACS routine in the ACS language (a high-level programming language). Exemple d'ACS Routine V-D. This replacement lets the Storage Administrator use the greater power of the ASR rules language. ALLOW. You define the information that you want to include and exclude in the list using the INCLUDE and EXCLUDE keywords. A definition of each documented function and two examples showing The ACS environment can act as a direct replacement for the IBM ACS routines. To assist you in this verification and in setting up ACS processing, we have provided you with several sample configurations, ACS routines and a REXX Exit. A Storage group called SGHUGE is defined and ACS routines coded to direct the data sets in the new management classes to the group. Testing the individual routines of a new or modified configuration lets you activate SMS with greater confidence. The FILTLIST statement is a definition list that you can use when testing variables in an ACS routine. This topic is intended to help you to write ACS routines. Specifically, it explains how you can write ACS routines for an SMS configuration using the ISMF Automatic Class Selection application. For objects, the storage group, storage class and management class ACS routines are required. The other routines are optional. This topic helps you define ACS routines. 1. DFSMS:Intermediate Understanding Someone Else's ACS Routines Neal Bohling DFSMS Defect Support, IBM bohling@us. Mar 3, 2011 · DFSMS Basics: How to Create/Modify an SMS Configuration and Write ACS Routines Part 1 Steve Huber IBM Corporation The data class, storage class, and management class ACS routines are not invoked because the BYPASSACS keyword is coded in the DFSMSdss RESTORE job. You can then activate and share the validated SCDS among systems with mixed levels of DFSMS. Reed-IBM Corporation; Derek Erdmann-IBM Table 189 Events for which Control-M/Tape Invokes DFSMS ACS Routines Event &ACSENVIR Management Class Usage Mount Scratch CTTMNTV Assign a scratch pool. Sep 5, 2025 · Sun StorageTek Virtual Tape Control Software (VTCS) - Version 6. This failure occurs because some read-only variables are only known to higher levels of DFSMS. DFSMS COMMANDS Listing Information from the BCDS and MCDS in TSO The following information applies to both SMS and non-SMS-managed May 17, 2011 · Pete Wilson Active Member Joined: 31 Dec 2009 Posts: 599 Location: London Most ACS variables are read-only. The ACS routines let you determine who can request encryption processing by overriding any request specified in the JCL. Activation de la configuration VI. De quoi sera fait demain ? VI-A. This variable can have a value assigned to it by the SET statement and it can also be used in comparison operations. Jan 25, 2005 · DFSMSrmm allows you to use your SMS ACS routines to assign a VRS management class and to select a specific scratch pool. Rules can be set in Allocate to query, set, adjust or even remove DFSMS constructs, in addition to other allocation parameters, from the allocation if This topic helps you define ACS routines. Compilation et validation des ACS Routines V-E. We would like to show you a description here but the site won’t allow us. If you are new to writing SMS ACS routines and would like to practice in a safe environment, this session is one you should really attend. SMS classes IAM provides full support for IDCAMS defines under SMS. The SMS subsystem calls DFSMSrmm before the data class ACS routine obtains control. pdf), Text File (. If you do not translate your ACS routines and validate your SCDS on the highest level of DFSMS, the translation and validation might fail. For example, the value of &SIZE is set to zero when a new file is created, but on a recall or convert request, it is set to the actual size of the file. Variables such as &ACCT_JOB can assume different values depending on the operating environment. If you want some hands-on practice, you should consider attending the Hand-on-Lab, How to Write ACS Routines. Then you can compare read-only variables to items in the list using IF-THEN and SELECT-WHEN statements, without having to write elaborate AND and OR combinations. The values of the read-only variables are set by DFSMS/VM and passed to the ACS routine at invocation time. The SMSINFO field can be specified for any logonid. 1 and later: SMC - How to Tailor SMC's Calls to the DFSMS ACS Routines Finally, the IXMAINT & EXPIRE functions honor Management Class attributes as described in the DFSMS Storage Administration Guide. Le Cloud VII. Sun StorageTek Virtual Tape Control Software (VTCS) - Version 6. 5 hours This course introduces you to the family of DFSMS products that are used to manage z/OS data and then focuses on the creation and implementation of data, storage and management classes… Feb 14, 2018 · I have been using ISMF to define a whole heap of new MC, DC, SC and SG to that SCDS, but this is very much a work in progress until I have completed my ACS routines to take advantage of them all. If you are new to writing SMS ACS routines and want to practice on a system where you can't hurt anything, this session is one you should really attend. Read-only variables contain data set and system information, and they reflect what is known at the time of the allocation request. Type in the appropriate data set name for the ACS routines. References in this document to IBM products, programs, or services does not imply that IBM intends to make such products, programs or services available in all countries in which IBM operates or does business. The DFSMS product tape contains a set of sample ACS routines. DFSMS Basics: How to Write ACS Routines Hands-on Lab (Section 1) Neal Bohling and Tom Reed IBM February 6, 2013 Session Number 12320 Use ACS routines to assign values to read/write (R/W) variables. Understanding ACS routines Creating ACS routines Translating ACS routines Validating ACS routines or an entire SCDS Translating and validating in a sysplex environment Testing ACS routines ACS routine environments If you are new to writing SMS ACS routines and want to practice on a system where you can't hurt anything; this session is one you should really attend. For tape, the storage group, storage class and data class ACS routines are required. We have shown the name of the PDS or PDSE corresponding to the sample ACS routines for this milestone. During the automatic class transition, ACS routines are invoked with the ACS environment of SPMGCLTR to determine the new management class, storage class, and storage group assignments. This topic documents intended Programming Interfaces that allow you to write programs to obtain the services of DFSMS. e9d voq gteq t5rxw fda6iiz bo 9r mak cvpshk cikkm