SUMMARY: Fibre types and Sun storedge PCI dual fibre channel HBA(X6729A)

From: Fergus Donohue <Fergus.Donohue_at_dcu.ie>
Date: Wed Sep 11 2002 - 06:03:30 EDT
Thanks to Ed Rolison and Jason Watson. I can't say I'm a lot wiser, it
looks like I'll just try it and see. Ed reckons it should work with
62.5,
just with a reduced distance (175M) and that converting between
different sizes is a problem. Jason makes the point that Sun souces
HBAs from differnet manufacturers and maybe if you could determine the
original manufacturer - you could get an answer from them.

Regards,

Fergus.



------------------------------------------
IIRC fibre sizes are _almost_ irrelevant.
Basically the problem with using different fibre sizes is that at the
transition point, you lose some signal strength
(eg going from 62.5 - 50 and vice versa). So as long as you stick with
the
same size all the way along, you should be fine.

(I don't know for  certain about that card, but we've been running
emulex
HBAs on 50 and 62.5 micron. We've now standardised
on 50, but didn't seem to have any problems during that interval.)


------------------------------------------
Usually the HBAs Sun sources come from a variety of different OEMs.  
Because of this, there probably is not a good way to answer your
question 
unless you can discern who actually made the board you are using.

If you don't have a lot invested in Sun's HBAs, I'd recommend looking at 
HBAs from Emulex or LSI Logic.

Jason

Original Question:
> 
> Hello all,
> 
> Can someone tell me if the above card will run with 62.5 micron fibre?
> The documentation all seems to mention only 50 micron.
> 
> Thanks,
> 
> Fergus.
> --
> Fergus Donohue,
> Systems Group,
> Computer Services Dept.
> Dublin City University
> _______________________________________________
> sunmanagers mailing list
> sunmanagers@sunmanagers.org
> http://www.sunmanagers.org/mailman/listinfo/sunmanagers

-- 
Fergus Donohue,
Systems Group,
Computer Services Dept.
Dublin City University
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Received on Wed Sep 11 06:10:17 2002

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