EBS 12 - closer to the time it takes to merge of tablespace

Good evening!

Guys, I have detected a hint of fragmentation of 6.58 in a tablespace of our test EBS server.

They asked me to try to recover the disk space, so initially I want to execute a statement "ALTER TABLESPACE COALESCE nom_tablespace" on this tablespace.

This is the scenario:

OS: RHEL 5.7 x86_64

Oracle EBS: 12.1.3

Oracle database: 11.1.0.7.0

Processors: 8

RAM: 16 GB

The memory allocated to Oracle DB: 8GB

Tablespace to coalesce.

Total size: 384GB

Used tablespace space: 372,9 GB

Free space: 11.1 GB

According to your own experience, how long could merge this tablespace? I have to communicate an approximate time of how long the process at the head of our Department before proceeding.

Thanks in advance!

Good afternoon!

Sorry for the absence.

I made a clone of our test EBS server and run the statement "ALTER TABLESPACE nom_tablespace COALESCE", surprisingly the process finished 5-7 seconds later.

Then I read about this behavior, and the answer comes from the Oracle DB documentation:

«Free coalescence extends is not necessary for locally managed tablespaces.»

I questioned the tablespace, it is managed locally. So, for me, it was a good lesson.

After this discovery, I proceeded to reorganize the storage space.

Thanks for your advice!

Tags: Oracle Applications

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