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Best practise for data warehousing database creation [message #526296] Mon, 10 October 2011 08:13 Go to next message
crussed_sonu
Messages: 51
Registered: July 2007
Location: Delhi
Member
Hi All,
Just wanted to create a dataware house database.

Just wanted to know the imporatnt parameter that required for datbware house database creation.

and also suggest me the mount point with size ... for 80 GB of dataware database.

i have create a database for 80gb of dataware db.

I have 16gb of RAM and When looking at the physical processors ...
grep 'physical id' /proc/cpuinfo | sort | uniq | wc -l
2

When looking at the virtual processers ...
grep ^processor /proc/cpuinfo | wc -l
16

Thanks in advance ..

Regards,
Re: Best practise for data warehousing database creation [message #526302 is a reply to message #526296] Mon, 10 October 2011 08:22 Go to previous messageGo to next message
Michel Cadot
Messages: 59748
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
Quote:
Just wanted to know the imporatnt parameter

The important parameter is: What is the application?

Regards
Michel
Re: Best practise for data warehousing database creation [message #526306 is a reply to message #526302] Mon, 10 October 2011 08:30 Go to previous messageGo to next message
crussed_sonu
Messages: 51
Registered: July 2007
Location: Delhi
Member
We are using Informatica & BI for the application end..

Re: Best practise for data warehousing database creation [message #526312 is a reply to message #526306] Mon, 10 October 2011 09:02 Go to previous messageGo to next message
Michel Cadot
Messages: 59748
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
I meant what job make the application, how many users...
If you don't know then start using the default parameters for a DWH and then modify them if there is any performances problem accordingly to this problem.

Regards
Michel
Re: Best practise for data warehousing database creation [message #526359 is a reply to message #526312] Mon, 10 October 2011 13:05 Go to previous messageGo to next message
crussed_sonu
Messages: 51
Registered: July 2007
Location: Delhi
Member
Hi Michel,

The ETL jobs are starting the load and making approx of 200 sessions to the database.

And also wanted to know, do you have any recommendation for data warehousing database which is having 80GB of size.

I means. just wanted to know the
1. Recommended parameter in pfile.
2. Mount point allocation for the dbf,ctl and redos ..

Please let me know if you require any more info ..

Regards,
Vimlendu
Re: Best practise for data warehousing database creation [message #526361 is a reply to message #526359] Mon, 10 October 2011 13:08 Go to previous messageGo to next message
BlackSwan
Messages: 23029
Registered: January 2009
Senior Member
>The ETL jobs are starting the load and making approx of 200 sessions to the database.
200 sessions should do a fine job to bog down & overload the hardware.
Re: Best practise for data warehousing database creation [message #526363 is a reply to message #526361] Mon, 10 October 2011 13:21 Go to previous messageGo to next message
crussed_sonu
Messages: 51
Registered: July 2007
Location: Delhi
Member
Hi Swan,

200 sessions should do a fine job to bog down & overload the hardware.

Yes the jobs are doing fine but when i see the load through the top command it is showing very high.

Load Ava. :- 10

Please let me know what should i do in that case and also suggest me for

1. Recommended parameter in pfile.
2. Mount point allocation for the dbf,ctl and redos ..

Please let me know if you require any more info ..
Re: Best practise for data warehousing database creation [message #526469 is a reply to message #526363] Tue, 11 October 2011 04:07 Go to previous message
crussed_sonu
Messages: 51
Registered: July 2007
Location: Delhi
Member
Waiting for your suggestion ..
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