Fibre channel multipathing

[pingu]

Hi,
Can anyone confirm for me that fibre channel multipathing is now supported and functions correctly in OS X server?
Apple’s [url=http://www.apple.com/support/downloads/macosxserverupdate1039combo.html]docs[/url] for 10.3.9 server Combo update states that it was included from that point, AFP’s article here [url=https://www.afp548.com/article.php?story=20040810092233981]here[/url] states it was included in 10.3.5, but I never heard anything about this at the time. As far as I was aware, the only way to acheive multipathing was to use Xsan.
Can anyone fill me in further?
Cheers
Dan

[pingu]

I answer to my own question, it does seem that multipathing was included at some point.
We hooked up our two Qlogic 5200s and connected them to each other to create a cascade. The ports connecting the switches were configured as G_PORTs and the switches then auto-conf’d them as E_PORTs.
We then connected all the hosts Port 0 to one switch and Port 1 to the other, along with all out storage and libraries etc. When we boot the hosts they seem happy, and only mount one instance of each of the storage devices.
Now to get some big transfers going and start pulling out cables!
More to follow…
Dan

[pingu]

Thanks Joel.

Once we had configured zones on the switches and ensured that I/O Streamguard was disabled on the relevant ports everything seemed to work nicely. We did though have to do a full shutdown off all equipment connected to the switches before the hosts would play nice with the zones, so I’d advise anyone doing this to configure the zones with all other equipment shutdown.

D

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