Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

AIO on AIX 6.1

2,074 views
Skip to first unread message

bob123

unread,
May 5, 2009, 3:37:24 PM5/5/09
to
Hi,

On AIX 6.1, smitty aio doen't
how is managed AIO on AIX 6.1 ?

Thanks in advance


Hajo Ehlers

unread,
May 5, 2009, 5:12:38 PM5/5/09
to
On May 5, 9:37 pm, "bob123" <bob...@gmail.com> wrote:
> Hi,
>
> On AIX 6.1, smitty aio doen't
> how is managed AIO on AIX 6.1 ?
>

A iNet search leads to
http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/com.ibm.aix.prftungd/doc/prftungd/async_io.htm

and the ioo command

cheers
Hajo

Gary R. Hook

unread,
May 6, 2009, 9:16:38 AM5/6/09
to
bob123 wrote:
> On AIX 6.1, smitty aio doen't
> how is managed AIO on AIX 6.1 ?

It's all automagic now. You don't have to configure it like you
used to on 5.x.

--
Gary R. Hook
________________________________________________________________________
Vocatus atque non vocatus deus aderit

bergh....@gmail.com

unread,
May 6, 2009, 2:56:45 PM5/6/09
to

However if you really really want to change things they are now kernel
options with these default values

# ioo -a|grep aio
aio_active = 0
aio_maxreqs = 65536
aio_maxservers = 30
aio_minservers = 3
aio_server_inactivity = 300
posix_aio_active = 0
posix_aio_maxreqs = 65536
posix_aio_maxservers = 30
posix_aio_minservers = 3
posix_aio_server_inactivity = 300

/Jesper

jame...@gmail.com

unread,
Dec 23, 2012, 10:57:54 AM12/23/12
to
On Tuesday, May 5, 2009 3:37:24 PM UTC-4, bob123 wrote:
> Hi,On AIX 6.1, smitty aio doen'thow is managed AIO on AIX 6.1 ?Thanks in advance

Ale

unread,
Dec 25, 2012, 5:24:39 PM12/25/12
to
Il 23/12/12 16:57, jame...@gmail.com ha scritto:
> On Tuesday, May 5, 2009 3:37:24 PM UTC-4, bob123 wrote:
>> Hi,On AIX 6.1, smitty aio doen'thow is managed AIO on AIX 6.1 ?Thanks in advance
>
Hi,

try smitty iocp

Ale

Uwe Auer

unread,
Dec 26, 2012, 1:27:00 PM12/26/12
to
Hello,

iocp is I/O Completion Ports - op is asking for asynchroneous i/o

Asynchroneous i/o is implemented as a kernel service in AIX 6.1 instead
of using a special device aio0 as in previous AIX versions. The kernel
module tuning (maxservers, minservers, etc.) is implemented through
"ioo" command. Check "ioo -L | grep aio" for tunables.

Regards,
Uwe Auer
0 new messages