Re: vxfs 5.1sp1 solaris 10u9 qio not makes asynch read oracle 11.2.0.2
- From: Ujang Jaenudin <ujang.jaenudin@xxxxxxxxx>
- To: Phillip Jones <phil@xxxxxxxxxx>
- Date: Thu, 22 Mar 2012 18:59:54 +0700
hi Phil,
thanks for the url...
I have read those url 3 times before this trussing :)
do you think that statement comes from oracle kernel guy?
or
because of open flag for O_DSYNC
28355: open("/data01/zzztest1.dbf", O_RDWR|O_NDELAY|O_DSYNC|O_NONBLOCK) = 10
that's why asynch io didn't work?
On 3/22/12, Phillip Jones <phil@xxxxxxxxxx> wrote:
> Hi,
>
> You may find this archive post/thread of interest:
> //www.freelists.org/post/oracle-l/Async-and-Direct-IO-On-Solaris-using-VXFS,5
>
> Cheers,
>
> Phil
>
> On Thu, Mar 22, 2012 at 6:04 AM, Ujang Jaenudin
> <ujang.jaenudin@xxxxxxxxx>wrote:
>
>> dear all,
>> I have a puzzle things for this environment.
>>
>> I tested create table as select/CTAS (the original table is on QIO file)
>> it looks no kaio AIOREAD, but uses pread (synchronous IO).
>>
>> play with db parameter:
>> filesystemio_options
>> disk_asynch_io
>>
>> has no effects.
>>
>> anyone had same experiences?
>> do you think oracle has some issues on this veritas QIO to use kaio
>> AIOREAD
>> <//www.freelists.org/webpage/oracle-l>
>>
>>
>>
>
--
regards,
ujang jaenudin
databases independent consultant
http://ora62.wordpress.com
jakarta - Indonesia
--
//www.freelists.org/webpage/oracle-l
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