RE: How to size db_block_size?

http://www.ixora.com.au/tips/creation/block_size.htm

provides a good explanation of how and why to select a large db block size//

> ----------
> From: Nirmal Kumar Muthu Kumaran[SMTP:NIRMALK_at_qtel.com.qa]
> Reply To: ORACLE-L_at_fatcity.com
> Sent: Tuesday, June 19, 2001 3:30 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: How to size db_block_size?
>
> Hi Justin,
>
> A larger data block size provides greater efficiency in disk and memory
> I/O (access and storage of data). Such cases include:
>
> a) Oracle is on a large computer system with a large amount of memory and
> fast disk drives. For example, databases controlled by mainframe computers
> with vast hardware resources typically use a data block size of 4K or
> greater.
>
> b) The operating system that runs Oracle uses a small operating system
> block size. For example, if the operating system block size is 1K and the
> data block size matches this, Oracle may be performing an excessive amount
> of disk I/O during normal operation. For best performance in this case, a
> database block should consist of multiple operating system blocks.
>
> Hope that this would helps you.
>
> Nirmal.
>
> -----Original Message-----
> From: Justin Coleman [SMTP:jd_coleman_ora1_at_hotmail.com]
> Sent: Tuesday, June 19, 2001 10:06 AM
> To: Multiple recipients of list ORACLE-L
> Subject: How to size db_block_size?
>
> Dear All,
>
> Is there a recommended approach on how to decide on the
> db_block_size for
> your database? I am looking to create a database that during the day will
>
> be used for light OLTP, but during the day and night will have heavish
> batch
> jobs. Therefore I was intent on using 8k or 16k blocks. Most likely 8k
> blocks. But is there an approach to actually chosing the correct
> db_block_size?
>
> Cheers for any help in advance.
> Justin
>
>
>
>
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Justin Coleman
> INET: jd_coleman_ora1_at_hotmail.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).
>
>

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Rahul
  INET: rahul_at_ratelindo.co.id

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).