SAN w/ multiple paths on IBM bladecenter

[shane stixrud org]

For those who like complicated and annoying problems this is one for you 
:)

I have IBM blade's that I need to get to install and boot from a SAN with 
multiple paths in failover mode.  I am using RHEL v3.0 Update2 w/ latest 
patches.  The problem is when multiple paths are enabled 
RHEL3 sees two drives when in fact there is only one.  If I disable one 
of the paths I can install and boot correctly without issue.

If at all possible I would like to use the qlogic (qla2300) driver included 
with RHEL3, this driver is newer than any of the 6.xx drivers on 
qlogic's site and from reading the source code does appear to support 
failover if one sets "options qla2300 ql2xfailover=1" in 
/etc/modules.conf however the operating system still sees two drives when 
there is only one.

I have installed the latest sansurfer qlogic configuration utility in 
hopes it would give me a hint as to what I am doing wrong but without any 
success.

Has anyone run into this problem before? I would not think this 
configuration is that unusual.

Thanks

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