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List:       suse-oracle
Subject:    Re: [suse-oracle] Using USB for Oracle Failover Cluster
From:       Martin Konold <martin.konold () erfrakon ! de>
Date:       2003-01-31 8:13:24
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On Thursday 30 January 2003 05:38 am, Frank Westheider wrote:

Hi Frank,

> Why don't you use FireWire instead of USB. 

Well, I intended to reuse the external USB 2.0 hdd for using with my laptop 
which only has USB 2.0.

> It's cheap and
> its PeerToPeer, to you can use one disk with 2 external Firewire-Connectors
> as a shared media without problem.


> You can also use Firewire-Hubs/Switches and there you can connect Hosts and
> Periphals together...
>
> Bye
>    Frank
>
> ----- Original Message -----
> From: <martin.konold@erfrakon.de>
> To: "Lars Marowsky-Bree" <lmb@suse.de>
> Cc: <suse-oracle@suse.com>
> Sent: Friday, January 31, 2003 5:30 AM
> Subject: Re: [suse-oracle] Using USB for Oracle Failover Cluster
>
> > On Thursday 30 January 2003 04:09 am, Lars Marowsky-Bree wrote:
> >
> > Hi Lars,
> >
> > > > Anyone knows if using USB-2.0 is also possible in order to provide a
> > > > "poor man" failover solution?
> > >
> > > USB can't easily be used as a shared storage mechanism because it
>
> doesn't
>
> > > allow multiple hosts per bus.
> >
> > This was the information I was looking for.
> > Originally I was under the impression that due to the fact that a
>
> host-to-host
>
> > cable exists (mostly used to emulate ethernet) that 2 hosts on one hub
>
> might
>
> > be allowed.
> >
> > >  If you are feeling like adventure, you could
> > > try one of those USB switches (you know, allowing a keyboard/mouse to
> > > be
> >
> > Interesting though I doubt that these switches support USB 2.0.
> >
> > > shared between two nodes, basically the same problem ;), which I think
>
> fix
>
> > > this. I have no idea whether that would be reliable enough, though, but
>
> it
>
> > > might work for testing.
> >
> > Basically I was looking for a cheap solution to show linux ha at the
> > Cebit fair without haveing to buy very expensive equipment like FCAL or
> > dual
>
> host
>
> > external scsi raid .
> >
> > Regards,
> > -- martin
> >
> > Dipl.-Phys. Martin Konold
> >
> > e r f r a k o n
> > Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
> > Nobelstrasse 15, 70569  Stuttgart, Germany
> > mobil: 0175 4148693
> > fax: 0175 13 4148693
> > email: martin.konold@erfrakon.de
> >
> >
> > ---------------------------------------------------------------------
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>
> ---------------------------------------------------------------------
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> Please see http://www.suse.com/oracle/ before posting

-- 
-- martin

Dipl.-Phys. Martin Konold

e r f r a k o n
Erlewein, Frank, Konold & Partner - Beratende Ingenieure und Physiker
Nobelstrasse 15, 70569  Stuttgart, Germany
mobil: 0175 4148693
fax: 0175 13 4148693
email: martin.konold@erfrakon.de


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