Workload Management Features | Teradata Vantage - 17.00 - Workload Management Features - Teradata Workload Management

Teradata Vantageā„¢ - Workload Management User Guide

prodname
Advanced SQL Engine
Teradata Workload Management
vrm_release
17.00
created_date
June 2020
category
Administration
User Guide
featnum
B035-1197-170K

TASM provides many ways to manage workloads, including the following features:

  • Filters reject requests with specified characteristics before they start executing. Filters are applied system-wide.
  • System throttles manage request concurrency across all workloads in the system. System throttles may cause the system to delay some requests when throttle thresholds are exceeded.
  • Session throttles limit the number of sessions that can log on at the same time.
  • Workload throttles manage request concurrency within one workload. Workload throttles may cause the system to delay some requests when throttle thresholds are exceeded.
  • Classification defines the characteristics that qualify a request to run under the rules of this workload and determines which workload manages a specific request. Classification criteria may include--but are not limited to--originating application, target database object, or request characteristics.
  • Events monitor and take action on utilization and activity.
  • States allow TASM to enforce different rules in different circumstances, depending on system health and time frame.
  • Utility management controls and customizes utility behavior separately from other request activity.
  • Priority management controls the amount of CPU and I/O resources that individual requests receive, as defined by workload rules.
  • Exception management detects unexpected situations within a workload and can automatically act to change the workload the request is subject to, or sends a notification.
The following shows the ways in which TASM manages workloads.

"Ways in which TASM manages workloads."