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

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On Mon, Sep 20, 2004 at 08:33:18PM +0200, Lars Marowsky-Bree wrote:
On 2004-09-20T15:55:51,
  Luca Berra <bluca@xxxxxxxxxx> 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@xxxxxxxxxx
       Communication Media & Services S.r.l.
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