SYSTEM FREEZE Command | unityadmin | Teradata Unity - 17.00 - SYSTEM FREEZE - Continuous Availability - Teradata Unity

Teradata® Unity™ User Guide

Product
Continuous Availability
Teradata Unity
Release Number
17.00
Published
September 2020
Language
English (United States)
Last Update
2020-09-15
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Purpose

Changes a Teradata Database system or table from Active state to Read-Only state.

Syntax

SYSTEM FREEZE {tpdid[,tpdid,...]} | {database.tablename [ON tpdid[,tpdid,...]]} ["reason"];

Parameters

database.tablename
Name of a database and table currently in the Unity Data Dictionary. The table name that you specify must be fully qualified.
tdpid
Unique identifier (TDPID) of a Teradata Database system.
"reason"
User description of why the object is having its state changed.

Usage Considerations

Unless a table is specified, running this command sets all tables to Read-Only. Specify a single table to mark it Read-Only.

If making a state change for a specific table, then the table on all Teradata Database systems becomes Read Only.

Example

The following example demonstrates placing a Teradata Database system with the TDPID fast in Read Only state.

unityadmin>  system freeze fast; 
The request is currently processing as operation number 3.
You may check its status using the command 'operation check 3'.
unityadmin> operation check 3;
Operation Number : 3
Operation Name   : Freezing Systems
User             : admin
User Name        : Main Administration User
Progress (%)     : 0
Status           : In Progress (0)
Start Time       : 01/09 12:49:47
Finish Time      : 12/31 16:00:00
Systems:
    [2] fast - Pending (2)
Updates:
    01/09 12:49:48 [-] Info: Freezing selected systems