Wednesday, March 24, 2010

SYSAUX tablespace Deleted and No backup not available for Database.

Suppose SYSAUX tablespace related datafiles are deleted or corrupted and no backup is available.
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As we know sysaux tablespsace is newly introduced in 10g to reduce load on system tablespace. SYSAUX tablespace is contine information like AWR repositrory , streams long/lob data, RMAN repositry, OLAP , Datamining etc.

Moment sysaux tablespace is offline or datafile not accessible , Above modules will not work for database but database will be availble for users.

If database is having valid backup , restore backup then recover database to fix the issue.

If Database is not having any valid backup then , try to take export of user defined schemas once export is completed successfully , recreate database
and import. Even expdp/impdp will also fix the issue.

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