Unity allows applications to run on a second Teradata system while the offline backup has tables locked.
Use the unityadmin shell.
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Start a Read-only outage on the table, database, or system that you want to archive:
For example, to begin an outage on a table named 'dbtest.table1' on Teradata 'system1', enter the following:unityadmin -u admin -P admin -e 'object freeze dbtest.table1 on system1'Option Description table unityadmin -u admin -P admin -e 'object freeze <db.tablename> on <system_name>' database unityadmin -u admin -P admin -e 'database freeze <db_name> on <system_name>' system unityadmin -u admin -P admin -e 'object freeze <system_name>' -
Recover the system, database, or table:
Option Description table unityadmin -u admin -P admin -e 'object recover <db.tablename> on <system_name>' database unityadmin -u admin -P admin -e 'database recover <db_name> on <system_name>' system unityadmin -u admin -P admin -e 'object recover <system_name>'