Re: Async I/O on AIX

"Chuck" <chuckh_at_softhome.net> wrote in message news:<am7fea$3aun4$1_at_ID-85580.news.dfncis.de>...
> "tingl" <tlam15_at_hotmail.com> wrote in message
> news:f487699f.0209161411.4fd16379_at_posting.google.com...
> > "Chuck" <chuckh_at_softhome.net> wrote in message
> news:<am537c$2pm0o$1_at_ID-85580.news.dfncis.de>...
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> > > The Oracle 8i Administrator's Reference for AIX says to set the max
> > > i/o servers to "at least 10*(number of disks that AIO accesses
> > > simultaneously)". Can someone clarify whether they mean physical
> > > disks, or logical filesystems? TIA
> > >
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> > Physical disks.
>
> Just to be sure then, if I have 15 file systems that are concurrently in
> use, each of which is a 3 volume RAID logical device, I need 450 async i/o
> servers. Is that correct? It just seems like an awful lot.
>
> TIA
Use,  

# pstat -a | grep -c aios

to check the number of active AIO servers running and set your MAXSERVER value to higher then that. Keep checking this periodically to adjust MIN/MAX server params.

//Rauf Sarwar Received on Tue Sep 17 2002 - 14:28:11 CDT