CA VM:Archiver Modernization Guide

CA VM:Archiver is a software product designed to reduce disk space usage on z/VM systems by archiving infrequently accessed CMS files. It allows users to easily recall archived files when needed, providing a balance between storage efficiency and data accessibility.

The core function of CA VM:Archiver is to move CMS files that are not actively used from primary storage to secondary storage (typically tape or disk). This frees up valuable disk space on the z/VM system. Users can later recall these files, restoring them to their original location.

CA VM:Archiver uses a catalog to track archived files. This catalog contains metadata about each archived file, including its original location, archive location, and other relevant information. This catalog is crucial for the recall process.

The archiving process typically involves identifying eligible files based on criteria such as last access date, file size, or user-defined rules. Once identified, the files are moved to the archive location, and their metadata is updated in the catalog.

Common commands include ARCHIVE (to archive files), RECALL (to restore files), and QUERY (to check the status of archived files). The exact syntax can be found in the CA VM:Archiver documentation.

While specific API details require consulting the product documentation, CA VM:Archiver likely provides a set of callable routines or commands that can be invoked from other applications or scripts. These interfaces allow for programmatic control of archiving and recall operations.

The architecture typically involves a main server component that manages the archiving process, a catalog database to store metadata, and agents or interfaces for interacting with the z/VM file system. The components communicate through internal protocols specific to the product.

Configuration files are used to define archiving rules, storage locations, and other operational parameters. These files are typically text-based and can be edited using standard z/VM editors.

By archiving infrequently used files, CA VM:Archiver reduces the amount of disk space required on the z/VM system. This can lead to cost savings by deferring or avoiding the need to purchase additional storage.

Efficient storage management improves system performance by reducing the load on the disk subsystem. Archiving unused files makes it faster to locate and access frequently used files.

The ability to easily recall archived files ensures that users can still access their data when needed. This minimizes disruption to business operations and maintains data accessibility.

CA VM:Archiver likely supports standard authentication methods available on z/VM, such as user IDs and passwords. It may also integrate with external security systems for enhanced authentication.

The access control model is likely based on z/VM's security mechanisms, which may include access control lists (ACLs) or role-based access control (RBAC). This ensures that only authorized users can access or manage archived files.

Encryption may be used to protect archived data both in transit and at rest. The specific encryption algorithms and key management practices should be detailed in the product documentation.

CA VM:Archiver provides audit logging capabilities to track archiving and recall activities. These logs can be used to monitor system usage, detect security breaches, and comply with regulatory requirements.

Administrative interfaces typically include a command-line interface (CLI) and potentially a web-based console. The CLI allows administrators to manage the system using commands, while the web console provides a graphical interface for monitoring and configuration.

User management is handled through z/VM's user administration tools. CA VM:Archiver integrates with these tools to manage user access and permissions.

Key configuration parameters include storage locations, archiving rules, retention policies, and security settings. These parameters are typically defined in configuration files or through the administrative interface.

CA VM:Archiver provides monitoring and logging capabilities to track system activity and identify potential issues. Logs can be reviewed to troubleshoot problems and ensure system health.