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Home > Archive > Data Storage > December 2004 > Multibus Failover, Linux and HBA
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Multibus Failover, Linux and HBA
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| Hallo...
is there an HBA capable of doing automatic failover in Linux over a multibus
failover configuration (multipath) in order to avoid use of
securepath,veritas devicemapper software?
thank you
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| Michael Ettengruber 2004-11-22, 7:45 am |
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"Niko!" <niko@#nospam#unina.it> wrote in message
news:cnsk5k$9pa$1@newsreader.mailgate.org...
> Hallo...
> is there an HBA capable of doing automatic failover in Linux over a
> multibus
> failover configuration (multipath) in order to avoid use of
> securepath,veritas devicemapper software?
No, because itīs not the HBA who does the fail-over but an
application/driver above. AFAIK there is no MPIO-Feature from a Linux
distribution like the Windows MPIO-feature. Tru64 and OVMS have the feature
embedded in the OS.
HTH
Etti
DoD #2503
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| David A.Lethe 2004-11-23, 2:45 am |
| On Mon, 22 Nov 2004 14:50:12 +0100, "Michael Ettengruber"
<ettengmi@yahoo.de> wrote:
>
>"Niko!" <niko@#nospam#unina.it> wrote in message
>news:cnsk5k$9pa$1@newsreader.mailgate.org...
>
>No, because itÂīs not the HBA who does the fail-over but an
>application/driver above. AFAIK there is no MPIO-Feature from a Linux
>distribution like the Windows MPIO-feature. Tru64 and OVMS have the feature
>embedded in the OS.
>HTH
>
>Etti
>DoD #2503
>
Qlogic has MPIO drivers and software that you can download that works
with their FC HBAs only. There is no load balancing capability, but
it most definately provides path failover. I believe Emulex also
now has such drivers.
YOu can also configure the LINUX md device driver to do MPIO, but I've
seen info from people saying it really doesn't work unless you run 2.6
kernel.
David
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| > Qlogic has MPIO drivers and software that you can download that works
> with their FC HBAs only. There is no load balancing capability, but
> it most definately provides path failover. I believe Emulex also
> now has such drivers.
I'm writing them just now!
> YOu can also configure the LINUX md device driver to do MPIO, but I've
> seen info from people saying it really doesn't work unless you run 2.6
> kernel.
Umh... are you sure you are not speaking about "dm" (device mapper) instead
of md ?
> David
thanks...
Niko
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| Mhilburn 2004-12-16, 6:26 pm |
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We utilize SecurePath software from HP. This software provides
automated failover for the HBA.
Niko! Wrote:
> Hallo...
> is there an HBA capable of doing automatic failover in Linux over a
> multibus
> failover configuration (multipath) in order to avoid use of
> securepath,veritas devicemapper software?
>
> thank you
--
Mhilburn
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