As we get our Exadata
Quarter Rack X3-2 we have to go live with the first databases as soon as
possible.
Before we will get
the Exadata Database Machine, we, the Paragon Data DBA Team, will develop a
detailed plan, what and how is doing, to make it possible to switch the
databases from an ORACLE 8 - Node RAC to the ORACLE Exadata 2 - Node RAC, so
fast as possible. The decision was that we have an outage window of 24 hours
for the migration the first database. So we can use Data Pump Import and Export
to do this. The advantage was that we have to change nothing, except the
Hardware. We have the some OS (Linux), the same Clusterware Version and the
same Database Version. With this frame conditions and the detailed migration
plan, we start directly after Hand – Over the Exadata Database Machine with the
creation of the first database and imported the data in this. It will help by
running the export that the Performance of the Exadata Database Machine is very
fast. The data volume was approx.. 3 TB and we need 10 hours for the export and
import of that data. After the first data import, our customer will test the new
Exadata database working together with the ERP application. After 3 days test,
we make the decision that we will going live next available weekend. Also the
deletion of the data in new database, the export and the import works fine on
this weekend. The migration of the first database was successfull done and on
Monday morning all Users will be work with application on the Exadata Database.
In the week after this integrate the Exadata Database Machine and the databases
into ORACLE Enterprise Manager Cloud Control and we implement the complete
operating infrastructure (Backup Rman procedures, Automatic monitoring, clean
up jobs, …).
The migration into
the ORACLE Exadata Environment was a great success and this depends mainly on three
topics:
1. The good detailed Paragon Data migration plan.
2. The good ORACCLE Exadata Preconfiguration
3. The good Exadata Performance
http://www.oracle.com/us/corporate/customers/customersearch/paragon-1-exadata-ss-2255198.html
More information about this solution on the DOAG 2015 Exaday on Tuesday, April 28th in Frankfurt:
http://www.doag.org/de/events/konferenzen/doag-2015-exaday.html
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