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system database backup failed due to Instance mismatch with old server

Publication Date:  2012-07-25 Views:  60 Downloads:  0
Issue Description
New U2000 installed with high hardware, and we shift database to new U2000. 
Everything run well except databse backup failed in 'Maintance suite "
It showed "DB details collection Error for EnpowerDB,plz check if the database is im system tablespace."
Alarm Information
It showed "DB details collection Error for EnpowerDB,plz check if the database is im system tablespace."
Handling Process
login new U2000 Maintance Suite, at instance page, delete "EnpowerDB".
Then backup database, it's all right.
Root Cause
Database comes from old U2000. Old U2000 can backup, and restore.
Why New U2000 can't backup database?
From the dialog, the information showed EnpowerDB is abnormal. 
So we checked the instance in new U2000, compare with instance in old U2000. 
"EnpowerDB " instance only existing at New U2000.  It will caused Database mismatch.
Suggestions
U2000 shift, please confirm both system should have same instance. Otherwise database backuo will failed.

END