Re: SuSE Linux cluster using MC/ServiceGuard --- shared storage

[Luca Berra <bluca@comedia.it>]

On Mon, Sep 20, 2004 at 08:33:18PM +0200, Lars Marowsky-Bree wrote:
>On 2004-09-20T15:55:51,
>   Luca Berra <bluca@comedia.it> said:
>
>> >Do I still need to use the Driver Patch for EVA
>> >Controller Failover? 
>> i believe using the qlogic driver failover is a viable solutio,
>
>The DM multipath in 2.6 should handle the EVA just fine.

you mean multipath-tools (http://christophe.varoqui.free.fr/multipath.html)?
i suppose so, using the "group_by_tur" spreading policy. fortunately i
don't have any spare EVA to test, plenty of XP tough :)

>The qlogic internal failover is being depreciated and AFAIK isn't
>included in 2.6 mainline even...

excuse me, are you shipping (or at least supporting) a 2.6 kernel on
your SLES 8.0 product?

>> another is purchasing securepath from HP. but i believe there were
>> issues using securepath and lvm together.
>
>Proprietary multipathing solutions are a thing of the past on Linux, one
>hopes.
i hope so, but for this statement to become true we need some other
vendor to ship a 2.6 based 'enterprise level' distribution with proper
device-mapper implementation, and application vendors (that includes
HP and IBM) to adapt.
Anyway, i do not really believe securepath to be a viable solution(*), i
was enumerating possibilities.

(*) and hp suggests using qlogic 7.00.3 driver with internal failover
for use with their Serviceguard product.

-- 
Luca Berra -- bluca@comedia.it
        Communication Media & Services S.r.l.
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