Glossary

Glossary Topics

Cluster Alias

A collective name representing all nodes in one cluster.

Day Specifiers

The day(s) of the week that Job Management Manager runs the job.

Event Log

A file in which Job Management Manager events are logged, such as jobs starting, completing, resources consumed, and interface requests. The event log may be set to capture up to 11 event classes for each individual node in an OpenVMS Cluster. A log reader program provided with the kit produces standard reports.

Failover

When a Job Management Manager node crashes on an OpenVMS Cluster that has multiple nodes running Job Management Manager, one of the other nodes always updates and cleans up any jobs that were running on the crashed node and restarts the jobs if necessary.

Group

A job category, such as daily, weekly, or monthly. Users can specify jobs by group, and Job Management Manager can perform certain actions on the entire group at once.

Interval

See Schedule Interval.

Job

A job consists of several elements: an OpenVMS command to execute the job, information about how and when to run the job, and actions to take on job completion. The information includes interval, completion notification, output-file specification, and job dependencies. A job can also include a prefunction and postfunction.

Job Dependencies

Job(s) that must complete successfully before another job can run.

Job Management Manager Delta Time

The time interval from the current date and time to a date and time in the future. The Job Management Manager delta time format is: +dddd hh:mm:ss.cc.

Job Specifier

A job specifier reference a job through the DCL interface. A job specifier value is either a job name or a job number.

Load Balance Group

A Load Balance Group holds a subset of nodes in an OpenVMS cluster, for load balancing. A job associated to a Load Balance Group is restricted to run only on the nodes in that group and load balances among them.

Load Balancing

All jobs that are not restricted to run on one specific node in an OpenVMS Cluster normally run on the default node in the cluster. If load balancing is enabled, such unrestricted jobs can be assigned to run on other nodes in the OpenVMS Cluster. Each job is assigned to the least loaded node in the cluster or the least loaded node in the load balance group (if defined).

Management Commands

Management Commands require at least OPER or SYSPRV privileges to use. The Job Management Manager management commands perform the following tasks: stop the Job Management Manager from running on the entire OpenVMS Cluster, on a specific node in the cluster, or on a specific remote node on the network; set and show certain Job Management Manager features; delete pending job-dependency notification retries on remote nodes; and close, rename, display, or print event logs.

Next Scheduled Time

A Job Management Manager job’s next scheduled run time.

OPCOM

Operator Communication Manager: A system process that controls communications between user processes and a system operator.

OpenVMS Delta Time

The time interval from the current date and time to a date and time in the future. OpenVMS delta time format is: dddd-hh:mm:ss.cc.

Postfunction

An OpenVMS command that is executed after a job’s main OpenVMS command. Each job may have its own postfunction. A postfunction runs even if the main command fails.

Prefunction

An OpenVMS command that is executed before a job’s main OpenVMS command. Each job may have its own prefunction. If the prefunction ends with an error, the main command does not run, and the entire job terminates with an error.

Proxy Account

An account, defined in the Network User Authorization File that allows a remote user to have access to the local node by mapping into a local account. The remote user assumes all privileges and rights of the local account. Job Job Management Manager remote access is allowed through both default and specified proxies or through an explicit account and password specification.

Remote Node

Any node in the network that is not in the user’s local OpenVMS Cluster.

Remote Node Job

A job designated to run on a remote Job Management Manager agent that is running on a remote machine.

Schedule Interval

The time period between a job’s start times. The time period can be daily, hourly, Job Management Manager delta time, fiscal time, regular monthly calendar interval, and continuous run.

Special Days

Jobs in a Special Day Class have their run times restricted by the class. Such jobs can be set to run only on days in the class, or can be set not to run on such days and be skipped or rescheduled for the next available day. Only users with OPER or SYSPRV privileges can create, modify, or delete Special Day Classes.

Type

A job category, such as backup, fiscal, or documentation. You can specify jobs by type, and the Job Management Manager can perform actions on jobs by type.

Wildcard Characters0

The asterisk (*) and percent (%) characters are wildcards. The asterisk (*) matches any number of characters. The percent (%) matches exactly one character.