Re: SunOS 5.8 I/O buffer size?

Amazing how so many can't tell a Ferrari from a Porsche.

Not you Mladen, I realize that's why "Ferrari" was in quotes.

Jared

Mladen Gogala <mgogala_at_adelphia.net>
Sent by: root_at_fatcity.com
06/12/2002 07:33 AM
Please respond to ORACLE-L  

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
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        Subject:        Re: SunOS 5.8 I/O buffer size?

The "IO buffer size" is the maximal size of a single, atomic disk IO, usually
either 128k or 256k. All IO requests larger then that will be internally broken
into multiple requests. As my Solaris is getting rusty (working with HP-UX and
Linux now) I cannot remember the exact parameter name. It used to be available
in the "Ferrari" book.

On 2002.06.12 09:53 Carmen Rusu wrote:
>
> Kevin Loney's Oracle8i DBA Handbook says you need to know the
> "operating system's I/O buffer size" in order to set the init param
> DB_FILE_MULTIBLOCK_READ_COUNT correctly.
>
> What is the definition of "operating system's I/O buffer size Loney is
> talking about?
>
> What is the value of " I/O buffer size" for SunOS 5.8?
>
> Went to Sun's web site and got lost...I just want two straight answers
> to my two questions.
>
>
>
>
> Thanks,
>
> Carmen Rusu
> Sr Oracle DBA
> 512-463-3657 (office)
> 512-606-5012 (pager)
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
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> Author: Carmen Rusu
> INET: carmen.rusu_at_rrc.state.tx.us
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-- 
Mladen Gogala
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  INET: Jared.Still_at_radisys.com

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