Offline Re-organization of database

Question

Hi
We are using SAP CRM 4.0 ( ECC 5.0) on HPUX 11.23 and Oracle 9.2.0.6 as the database.
I would like to carry out an offline reorganization of the database. What are the steps involved, Do I use brtools to do this activity.
Some of my tables eg BALDAT are in RAW format.
Can someone who has done this type of activity guide me on this.
Regards
Alfred

Answer 1

Hi,
I'll try to offer some advice:
> 1. We have a problem with the huge size of the tables...out of which there are 2 tables which are in RAW format. and are also huge in size. SAP itself have recommended a Reorg of these tables.
As you are on 9i then the reorganization of those tables has to be done online, but it is only two tables not the complete database.
> Can SAPDBA and Brspace be installed together.
Yes, you can use one or the other. I preffer BRSPACE as it is "newer" but the handling of OFFLINE reorgs is easier with SAPDBA.
For instructions you can take a look at the [SAPDBA|http://help.sap.com/saphelp_webas630/helpdata/en/d1/a9fe114b8a11d189510000e829fbbd/frameset.htm] documentation
To do it with BRSPACE, you can follow the relevant parts on the note
> 4. I've an issue on the mount points on which my Oracle DB is currently residing....Some mount points have reached a critical stage, I also need to move certains tables into a different tablespace
This can be done online, unless the tables have raw devices, in that case follow the previous point.
> 3. I also need to look at oracle DB peformance tuning parameters. If you have any inputs on these please send it to me.....any notes related to this are welcome....anything that you have experienced in your work environment can you share it with us.
I think this is too generic, you should analyze what is consuming the CPU, is it Oracle? or ABAP?
> 2. Overall our Performance of our system at the database level is quite high...During our sales closing cycles. we see a utilization of the CPU at around 95 -99 percent throughout the period
You should take a look at the parameter notes "124361 - Oracle parameterization (R/3 >= 4.x, Oracle 8.x/9.x)" and "358917 - Oracle DB parameterization for CRM and BBP"
>What other housekeeping activities can I undertake for bettering the performance at the Oracle level ?
This is too generic, usually I would advise to
1) check that your parameters are OK
2) 9i is "out of customer care support", the first year of extended maintenance is "free" and ends in August (I think) but you should be at least in 9.2.0.8 and latest optimizer merge fix.
3) Check for expensive statemens, focus on the statements generated during your closing cycles. Later on you can "check" other spensive statements. Perhaps you can install STATSPACK to help identify them
4) you do not mention if the high CPU utilization is on the DB server or AS, the issue could be that you have a CPU bottleneck for your activity.