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Indexes unusable after rman duplicate

edited Oct 19, 2011 6:39PM in Database Backup and Recovery (MOSC) 4 commentsAnswered
 Hello Everyone,

I'm currently experiencing some odd behavior...  Noting serious, but annoying, yes.
(ora 10.2.0.4 on OEL 5.5 on x64)

I'm duplicating a (1.5 To) database (rman duplicate target database to xxxx), and when rman is finished, and the database open, I get several occurrences of the following message in the alert.log:

Some indexes or index [sub]partitions of table USERNAME.LARGE_SUBPART_TABLE have been marked unusable

Well, nothing serious here, just need to the build the index.. But there are over 2000 of them: 2 tables are concerned, totaling 3 indexes with 126 partitions. one with 10 sub-parts, and 2 with 6 sub-partitions each.

Now, the thing that bothers me is: WHY are they marked unusable after the duplicate? Did the rowid's change? But why?

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