A/N
A/N is the abbreviation for alphanumeric.
Automated Class Selection (ACS)
Automated Class Selection (ACS) routine is a procedural set of ACS language statements. Based on a set of input variables, the ACS language statements generate the predefined SMS class name or a list of predefined storage groups names for a data set.
Bootstrap Data Set (BSDS)
Bootstrap Data Set (BSDS) is the backup or mirror data set for the Global VCAT, but does not contain DASD buffer information. You can recover the Global VCAT from the BSDS and also conversely.
CA Graphical Management Interface (CA GMI)
CA Graphical Management Interface (CA GMI) is the graphical management interface product that allows you to view and manage mainframe activity from a Windows PC. It consists of the CA Vantage Windows Client user-interface (referred to as the Windows Client), and the CA Vantage Web Client user-interface (referred to as the Web Client). Both of which interface with a z/OS server component to allow access to basic z/OS server functions. CA GMI is included free of charge with many CA products, including CA Vtape.
CA License Management Program (LMP)
The CA License Management Program (CA LMP) provides a standardized and automated approach to the tracking of licensed software. CA LMP uses common real-time enforcement software to validate the user configuration.
cell pool
Cell pool is an area of virtual storage that is subdivided into fixed-size storage areas named cells. CA Vtape uses cell pools to document lists of available resources (such as free LDSs and scratch Virtual Volumes), commands for execution, and Recalls in progress.
Channel Command Word
Channel Command Word (CCW) is the detailed instructions that are used to read and write data on a device that is attached to the mainframe.
Channel Path ID (CHPID)
A valid online Channel Path ID (CHPID) is required for the Virtual Devices. At startup, CA Vtape automatically selects the CHPIDs for the volume on which the data set referred to with the BSDS1 DD card is allocated. You can override by coding //CHPID DD in the SVTS PROC to point to a different device or by utilizing the ChpidDeviceList attribute of parmlib.
Complex, CA Vtape
A CA Vtape Complex is one or more CA Vtape subsystems running on one or more LPARs that share the CA Vtape Global VCAT and BSDS.
Control Data Sets (CDS)
CA Vtape uses a set of files or control data sets (CDS) to record system and configuration information. The CA Vtape control data sets consist of the Local VCAT, Global VCAT, and BSDS. CA Vtape control data sets should be considered critical system files. For more information, see the chapter "Control Data Sets" in the Configuration Guide.
Data Set Name (DSN)
Data Set Name (DSN) is the name of a data set.
Data-In-Virtual (DIV)
Data-In-Virtual (DIV) is a technique for holding data from linear data sets in memory to improve access performance.
Data-In-Virtual Entry (DVE)
Data-In-Virtual Entry (DVE) is a 4 MB virtual storage segment that CA Vtape uses when partitioning an LDS. This is the standard unit of data transfer between the Virtual Device dataspace and an LDS. Multiple DVEs are chained when writing to physical tape. The number of DVEs used determines the size of the Virtual Volume reported in the ISPF Interface and for reports.
dataspace
Dataspace is the area of storage that is defined for high-speed data storage and retrieval. The use of dataspaces allows the application to process as though it has much more central storage than it actually does. Data is considered mapped into a data space. Data-In-Virtual (DIV) is used to store and retrieve data. Dataspaces are used for each virtual drive and for the Global and Local VCAT data.
Deadly Embrace
Deadly Embrace is:
Eligible Device List (EDL)
Eligible Device List (EDL) is the list of eligible devices.
exclude filter
Exclude filter refers to a Data Set Filter List entry that indicates CA Vtape should not intercept a tape mount done for a Data Set Name matching this entry. An exclude works only if the DSN matched also matches an include entry for the same group. Data classes do not have exclude entries because patterning is not allowed for Data Class includes.
filter list
A filter list is a list of Data Set Names or patterns or Data Classes for which CA Vtape should or should not intercept a tape mount. Each filter list entry is assigned to a group number.
Global VCAT
Global VCAT refers to the Global Volume Catalog. This is a VSAM Linear Data Set containing information about resources shared by multiple CA Vtape Subsystems active on one or more LPARs. The shared resources are the Virtual Volumes and the NFS storage containing those volumes.
group
A group is a set of attributes or policies that tell CA Vtape how to process Virtual Volumes. Group attributes can be used to control things like the VOLSER range used to satisfy a mount request or If compression should be activated. Data class and or data set name filters are used to assign a group number to Virtual Volumes during scratch mount processing.
Hardware Configuration and Definition (HCD)
The Virtual Devices are defined to the operating system as a part of the CA Vtape installation. IBM's Hardware Configuration and Definition (HCD) software is used to create the definitions. These are software, not hardware, definitions that require only an HCD activation to use. An IPL is not necessary.
For more information, see the section "Define Virtual Devices Using IBM's Hardware Configuration and Definition (HCD) Dialogs" in the Configuration Guide.
High-Level Qualifier (HLQ)
High-Level Qualifier (HLQ) refers to the SMP/E installation data sets.
HIPER
HIPER is a SMP/E term that stands for Highly Pervasive problem.
Improved Data Recording Capability (IDRC)
Improved Data Recording Capability (IDRC) refers to the IBM hardware-based data compression option.
Virtual Volume compression lets you simulate Improved Data Recording Capability (IDRC) in CA Vtape Virtual Volumes by compressing the data as soon as the Virtual Device Engine receives it from the application.
include filter
Include filter refers to a Data Set Name or pattern, or Data Class Filter List entry that indicates CA Vtape should intercept a tape mount done with a matching Data Set Name or Data Class.
ISPF Customization
After SMP/E installation, ISPF customization refers to the panel-driven process of creating the SUTPARMS member used to initialize the Global VCAT, the BSDS, and the Local VCAT.
Local VCAT
Local VCAT refers to the Local Volume Catalog. VSAM Linear Data Set initialized with the SUTPARMS member. Each CA Vtape Subsystem has its own, unique Local VCAT into which parmlib attributes are loaded at startup and that is used as a work file by the running subsystem.
PREFIX
PREFIX refers to the CA Vtape DSN Prefix. This is the data set prefix used for generating the data set names for various CA Vtape data sets such as the DASD Buffer LDSs.
Program Temporary Fix (PTF)
Program Temporary Fix (PTF) is an IBM-sanctioned patch, often implemented using ZAP or SUPERZAP.
Program Temporary Fix in Error (PE)
Program Temporary Fix in Error (PE) is a SMP/E term.
PRP
PRP is a SMP/E term that stands for PTF Resolving PTF in error.
Scratch synchronization
Scratch synchronization is the process by which CA Vtape is informed which Virtual Volumes that the tape management system scratched.
Service Request Block (SRB)
The Virtualization Engine for CA Vtape is designed to run in Service Request Block (SRB) mode, a prerequisite of zIIP processing.
For more information, see the section "Exploitation of the zIIP Specialty Processor" in the Configuration Guide.
Small Product Enhancement (SPE)
Small Product Enhancement (SPE) is a SMP/E term.
Subsystem, CA Vtape
A CA Vtape subsystem is a single set of CA Vtape started tasks running on an LPAR. A CA Vtape subsystem can be part of a CA Vtape complex that shares a Global VCAT or BSDS with other CA Vtape subsystems. The subsystem can also make up its own, stand-alone complex. The started tasks that make up a CA Vtape subsystem are, by default, named SVTS, SVTSAS.SVTnPT, SVTSAS.SVTnUT, and SVTSAS.SVTnVm where n is the subsystem number and m is a number from 1 to 8.
SVTJCL library
SVTJCL library is a work data set into which the customization panels generate the necessary JCL members to define the global or shared resources. Resources include the Global VCAT, BSDS, and DASD Buffer LDSs.
System Management Facility (SMF)
System Management Facility (SMF) is a component of IBM z/OS. SMF provides a standardized method for writing out records of activity to a file (or data set). SMF provides full instrumentation of baseline activities that are running on z/OS, including: I/O, network activity, software usage, error conditions, processor utilization, and so on.
Task Control Block (TCB)
A Task Control Block (TCB) is a data structure in the operating system kernel containing the information to manage a particular process.
Unit Control Block (UCB)
Unit Control Block (UCB) is a control block in storage that describes the characteristics of a particular I/O device on the operating system.
Version Release and Modification (VRM)
CA Vtape implemented the Version Release and Modification (VRM) level concept before Release 11.5. The VRM is used to prevent incompatible software levels between subsystems sharing the control data sets from running simultaneously. As each CA Vtape subsystem is started, it compares its VRM to that of the Global VCAT to determine if it is safe to continue the startup. If the VRM levels are incompatible, the subsystem shuts down.
Virtual Device Engine
Virtual Device Engine is another name for the SVTSAS.SVTnVn subaddress spaces that control the Virtual Devices.
Virtual Devices
Virtual Devices are the virtual tape drives.
Virtual Storage Access Method (VSAM)
Virtual Storage Access Method (VSAM) is an access method for disk files that offers various techniques to access data. Data access includes: sequential, keyed, indexed, and relative record. Some of these techniques support special media access including data compression, caching, and data striping.
Virtual Tape System (VTS)
CA Vtape is installed into an address space and is often known as a Virtual Tape System (VTS).
Virtual Tape Unit (VTU)
A Virtual Tape Unit (VTU) is a control block. VTUs are attached when a z/OS command varies Virtual Devices online. They are detached when varied offline. They are attached to the SVTSAS.SVTnVn subaddress spaces.
Virtual Volume Entry (VVE)
A Virtual Volume Entry (VVE) is a control block. Documents a single Virtual Volume. Each VVE uses 4 KBs of space in the Global VCAT.
Virtual Volume Pool (VVP)
A Virtual Volume Pool (VVP) is a control block that documents a consecutive series of 100 Virtual Volumes. Example volumes include: 000000-000099, 000100-000199, and so on.
Volume Catalog (VCAT)
Volume Catalog (VCAT) is:
Volume Mount Analyzer (VMA)
Refers to the IBM Volume Mount Analyzer (VMA).
write-protected
Write-protected refers to a Virtual Volume or Virtual Volume pool that has been placed in read-only status in CA Vtape.
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