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LOBS - Storage, Redo and Performance Issues [ID 66431.1]
LOB Performance Guideline [ID 268476.1]
Thanks for the link, but unfortunately they don't help much. We thought about a network issues, but that has been ruled out by engineers.
DB Console shows constant 90% User I/O which should point to something, if there wouldn't be the SAN guys which say nothing is wrong with it.
Something weird is going on with that particular Oracle setup.
It would be interesting if you copied the database to another platform, and then ran your exports again. Your theory would have all the more credence if the test server was "smaller" and the export was quicker. You'd have to keep load considerations in mind... but if you can do the export at a time of minimal load (perhaps you did just that when you did the weekend export) it shouldn't skew things too much.
Have you opened an SR with Oracle?
Edited by: Justin Mungal on Mar 26, 2013 9:21 PM