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Expdp and its Total estimation using BLOCKS method is way off!

edited Jul 2, 2013 3:58AM in Database Utilities (MOSC) 3 commentsAnswered ✓
11.2.0.2

RHEL6

Datawarehouse

Im using expdp to dump out a schema in our datawarehouse. The size accoring to the database and expdp (Total estimation using BLOCKS method: 256.2 GB) is 256GB. But the files created on disk is much larger. Over 400GB. This is the parameter file:

directory=rensning
parallel=6
dumpfile=wmarch%U.dmp
exclude=index,statistics
tables=wmarchive.WMC_ARCH_WOL,
wmarchive.WMI_ARCH_EXP_RCPT_DETL

...

Any one seen this before?

Regards

S

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