RE: HP EVA + Qlogic HBA + failover

["Mimmus" <dviggiani tiscali it>]

In my experience, RH qla2300 driver supports failover in RH 3 >= U4, before
not.
I tried to pull one of the cables to my switches (I use an HP EVA 3000
disk-array) and system still works (logging failover to syslog).

Notice that in 2.6 kernels FC support was completely rewritten (no failover
in driver, peraphs you need to use md) and it is currently in evolution:
 http://kerneltrap.org/node/5022


Domenico Viggiani
 

> -----Original Message-----
> From: taroon-list-bounces redhat com 
> [mailto:taroon-list-bounces redhat com] On Behalf Of Gabor MICSKO
> Sent: Thursday, April 21, 2005 5:11 PM
> To: taroon-list redhat com
> Subject: HP EVA + Qlogic HBA + failover
> 
> Machine: HP Proliant DL380
> Storage: HP Enterprise Virtual Array 3000
> OS: Red Hat Enterprise Linux AS release 3 (Taroon Update)
> Kernel: 2.4.21-15.ELsmp
> 
> I have two QLogic Corp. QLA2312 Fibre Channel Adapter in HP 
> Proliant. I want to have redundant link to EVA (if one HBA 
> fails -> failover to second HBA).
> 
> My questions: 
> 
> 1.) Is the qla2300 driver in Taroon failover ready?
> 2.) If I load the qla2300 with parameter 'ql2xfailover=1' 
> (insmod qla2300 ql2xfailover=1), is this enough for a full 
> failover-configuration or do I need to set something else?
> 
> Thanks
> 
> --
> Micskó Gábor
> HP Accredited Platform Specialist, System Engineer (APS, ASE)
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