RDAC in AIX 5.3

Dear ALL

I have installed one p570 with TWO HBA running AIX 5.3 and TWO set
DS4500 Storage.

Each HBA connect to each DS4500 directly without via SAN Switch.

Cx will duplicate ( Mirror ) data between two DS4500 storage by
Application design.

We don;t have RDAC function ( Like Failover or IO balance function )
in this system.

But, In AIX 5.3 , system will enable RDAC device automatically.

My Question is

1.) Should I disable RDAC function in such a system ?

2.) Should I configure RDAC or HBA Driver in such a system ?

Pls advise or teach me how to configure ...


thanks

Tiger

You would still use the rdac driver, you are just required to daisy
chain the two controllers on each DS4500 together.
[url]ftp://ftp.software.ibm.com/pc/pccbbs/pc_servers/ibm_sw_ds4kfc_09.16.xx.62_aix_anycpu.txt[/url]

On Oct 14, 4:24 am, "tiger1025" <tiger.w...@msa.hinet.net> wrote:[color=blue]
> Dear ALL
>
> I have installed one p570 with TWO HBA running AIX 5.3 and TWO set
> DS4500 Storage.
>
> Each HBA connect to each DS4500 directly without via SAN Switch.
>
> Cx will duplicate ( Mirror ) data between two DS4500 storage by
> Application design.
>
> We don;t have RDAC function ( Like Failover or IO balance function )
> in this system.
>
> But, In AIX 5.3 , system will enable RDAC device automatically.
>
> My Question is
>
> 1.) Should I disable RDAC function in such a system ?
>
> 2.) Should I configure RDAC or HBA Driver in such a system ?
>
> Pls advise or teach me how to configure ...
>
> thanks
>
> Tiger[/color]

Dear c00p

Would you pls provide

How do I setup DS4500 for "daisy chain".

I cannot see this function form announcement letter.

thanks

c00p wrote:[color=blue]
> You would still use the rdac driver, you are just required to daisy
> chain the two controllers on each DS4500 together.
> [url]ftp://ftp.software.ibm.com/pc/pccbbs/pc_servers/ibm_sw_ds4kfc_09.16.xx.62_aix_anycpu.txt[/url]
>
> On Oct 14, 4:24 am, "tiger1025" <tiger.w...@msa.hinet.net> wrote:[color=green]
> > Dear ALL
> >
> > I have installed one p570 with TWO HBA running AIX 5.3 and TWO set
> > DS4500 Storage.
> >
> > Each HBA connect to each DS4500 directly without via SAN Switch.
> >
> > Cx will duplicate ( Mirror ) data between two DS4500 storage by
> > Application design.
> >
> > We don;t have RDAC function ( Like Failover or IO balance function )
> > in this system.
> >
> > But, In AIX 5.3 , system will enable RDAC device automatically.
> >
> > My Question is
> >
> > 1.) Should I disable RDAC function in such a system ?
> >
> > 2.) Should I configure RDAC or HBA Driver in such a system ?
> >
> > Pls advise or teach me how to configure ...
> >
> > thanks
> >
> > Tiger[/color][/color]