Activating a Shadow
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When a database becomes unavailable, database operations are resumed by activating the shadow. To do so, log in as SYSDBA or the database owner and use gfix with the -activate option.
Important:
Before activating a shadow, check that the main database is unavailable. If a shadow is activated while the main database is available, the shadow can be corrupted by existing attachments to the main database.
Before activating a shadow, check that the main database is unavailable. If a shadow is activated while the main database is available, the shadow can be corrupted by existing attachments to the main database.
To activate a shadow, specify the path name of its primary file. For example, if database employee.ib has a shadow named employee.shd, enter:
gfix -activate employee.shd
After a shadow is activated, you should change its name to the name of your original database. Then, create a new shadow if shadowing needs to continue and if another disk drive is available.