RE: Altering Freelist Groups in 10gR2 when moving to RAC from NON-RAC?

Jonathan, Folks      

Qs Does conversion of freelist groups to 4 needs to be done ONLY for Tables which undergo INSERTs & NOT for Tables which undergo UPDATEs, SELECTs, DELETEs?

NOTE Our Database Size is Huge i.e. 3 TB.

Qs Any Other parameter that should also be changed when moving a NON-RAC Database to RAC?

Thanks indeed for responding

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Jonathan Lewis Sent: Wednesday, September 27, 2006 3:17 PM To: oracle-l_at_freelists.org
Subject: Re: Altering Freelist Groups in 10gR2 ?

The only option is to do the CTAS, as the freelist group

blocks are located immediately after the segment header

block in the first extent.

The only other option to consider is 'alter table move' to

move the table into a tablespace defined to use ASSM

and forget about freelist groups - but I'm not very keen

on ASSM for high-performance, high-concurrency systems

myself.

Regards

Jonathan Lewis

• Original Message -----

From: "VIVEK_SHARMA" <VIVEK_SHARMA_at_infosys.com>

To: <oracle-l_at_freelists.org>

Sent: Wednesday, September 27, 2006 10:42 AM

Subject: Altering Freelist Groups in 10gR2 ?

Folks

When converting a NON-RAC Database to RAC in 10.2, the freelist groups

need to be altered to 4(= to the Number of RAC Nodes)

How is the freelist groups to be altered?

Seek to avoid usage of the CTAS command i.e. "Create Table <Duplicate

Tbl Name with freelist groups 4> As Select * from Original Table" since

this is very tedious

Is there any performance issue/Others with using the alter approach

versus the CTAS approach?

Thanks indeed

• CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** -- http://www.freelists.org/webpage/oracle-l