RE: Migrating 3TB size database from HP to AIX, also 9i to 10g.

From: Powell, Mark D <mark.powell_at_eds.com>
Date: Wed, 19 Sep 2007 11:55:28 -0400
Message-ID: <D1DC33E67722D54A93F05F702C99E2A9015E87F9@usahm208.amer.corp.eds.com>

If the 3T of data is spread across numerous objects I would consider going back to the first plan but running a series of concurrent exports into named pipes. then I could grad these named pipes via a remote copy (rcp) command into a named pipe on the new server from which I would start a background imp task.

You are now concurrently exporting and importing and you can run a set of these job tasks in parallel to reduce total necessary clock time.

Mark D Powell -- Phone (313) 592-5148

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of John Hallas

	Sent: Wednesday, September 19, 2007 7:47 AM
	To: sjaffarhussain_at_gmail.com; oracle-l_at_freelists.org
	Subject: RE: Migrating 3TB size database from HP to AIX, also 9i

to 10g.

Once you get to 10g on HP you can use datapump which is much faster

Can a lot of the data be migrated in advance, i.e historical data , leaving the current data to be moved during the planned outage.

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Syed Jaffar Hussain

	Sent: 19 September 2007 11:44
	To: oracle-l_at_freelists.org
	Subject: Migrating 3TB size database from HP to AIX, also 9i to

10g.

Hello list,

I have a uphill taks of migrating our datawarehouse Oracle 9i database, 3TB size, from HP Superdom to AIX, Oracle 10g.

Since the migration is across platofrms, exp/imp is the obvious option. But, 3TB size databse, exp/imp may take just too much time.

I have thought the following:

Upgrading 9i database on AIX to 10g (in place upgrade)

Then, using the method of database cross platform conversion from HP to AIX.

The problem with this method is that the temporary space required to hold the converted data files, it willd be difficult to have 3tb temporary sapce.

Do you see any another solution for this task?

Regards,

Jaffar

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Received on Wed Sep 19 2007 - 10:55:28 CDT