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HPUX, Oracle, and asynchI/O

Doug O'Leary
Honored Contributor

HPUX, Oracle, and asynchI/O

Hey;

We've been chasing a very ugly performance issue on an 11g database for over a week now so I'm going back and validating the core assumptions we've made

I've heard from more than one dba that HPUX doesn't support asynchI/O except on raw devices. Is that true and is anyone aware of any official documentation stating such?

Thanks for any info you can provide.

Doug O'Leary

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Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
2 REPLIES
Doug O'Leary
Honored Contributor

Re: HPUX, Oracle, and asynchI/O

Hey;

Nevermind; I got it. It's listed in the oracle documentation at http://download.oracle.com/docs/html/B10812_06/appendix_b.htm#i637036.

It'd still be nice to see something from HP saying 'not supported'; however, if oracle flat out says it's not going to work, then the dbas aren't likely to believe otherwise.

Doug O'Leary

------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html
Steven E. Protter
Exalted Contributor

Re: HPUX, Oracle, and asynchI/O

Shalom Doug,

HP-UX does support asynch I/O.

The initial releases of 11.00 and 11iv1 did not, but workarounds were subsequently provided by HP.

I ran Oracle 8/9/10 on rp5450's PA-RISC in Chicago and can assure you we enabled asynch I/O.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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Founder http://newdatacloud.com