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Migrating Tables from BigFile to SmallFile Tablespace

edited Sep 3, 2019 8:50PM in Database Administration (MOSC) 5 commentsAnswered

Hello Everyone!

We are running mission-critical system in the following environment:

Database: Oracle Enterprise 11gR2 11.2.0.4.0

OS: Red Hat Enterprise Linux x86_64, Version 6.9

Oracle Golden Gate (Replication being done to this server from 10 sites)

Oracle Data Guard with one Physical Standby database

We are encountering storage issue at hardware level. As per system engineers, the installed storage (LVM) has reached its limits (16TB), and RHEL does't support further expansion to this LVM. So the burden of work is on database team.

As of now, the LVM used storage allocated to the data files has reached 13TB. I have three main tables that contain one BLOB column in each table along with other columns to store photographs, ASM is not configured. These tables have 157 Million, 135 Million and 63 Million rows. These tables were created with bigfile tablespace and the 'Photograph' column is hash partitioned (not sub-partition) and there are ten partitions for each table.

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