How to use SAN with FreeBSD ?

DarkSoul darksoul at darkbsd.org
Thu May 3 15:37:46 UTC 2012


Hi,

I tested FreeBSD+QLogic+EMC on FreeBSD 8.2-RELEASE actually.

First of all, you need to load the isp(4) driver using the ispfw module,
via /boot/loader.conf
Then, you will be able to view the LUNs from your EMC box.

However, 8.2-RELEASE has a broken GEOM_MULTIPATH driver, which means you
won't be able to implement path failover (it doesn't work).
Also, I am not sure how FreeBSD would handle (even with latest multipath
drivers) the switch of storage processors in the event of storage failure.

So I would personally recommend using 9.0 for the latest GEOM_MULTIPATH
version (it's been rewritten), and testing :
- Fibre path failover
- Storage Processor failover

Cheers,


On 05/02/2012 09:59 PM, Mustafa Resul Çetinel wrote:
> Hi everyone,
>
> I'm looking to put together a SAN box with my FreeBSD. But i cannot
> find any documents for this case.  I reaaly wnat to know is there
> anybody with SAN experience, especially on FreeBSD? And what must i
> do, what are the step for carriying out storage support for FreeBSD?
> Could you please examine all steps for me and who needs this
> configuration steps ?
>
> Thanks in advance
>
> _Some information about my system :_
>
> FreeBSD localhost 8.2-RELEASE FreeBSD 8.2-RELEASE #3 r218745: Wed Feb
> 16 15:07:48 PST 2011    
> root at build8x64.pcbsd.org:/usr/obj/storage/fbsd-sources/8.2/sys/GENERIC  amd64
>
>
> QLogic 2562 HBA card, SAN environment is EMC
>
>
>
>
>
>
>
>
>
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-- 
Stephane LAPIE, EPITA SRS, Promo 2005
"Even when they have digital readouts, I can't understand them."
--MegaTokyo


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