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Re: General: Total # of logical FC disk devices with HP-UX 11.i

 

General: Total # of logical FC disk devices with HP-UX 11.i

What's the total possible # of Fibre Channel disk devices, ioscan -funC disk, that HP-UX 11.i on a Superdome and or N-class can see/use?

THANX

jpn
5 REPLIES 5
Steven E. Protter
Exalted Contributor

Re: General: Total # of logical FC disk devices with HP-UX 11.i

Last I checked for HP disk arrays it was 255 LUNS per Fiber card. The number is as low as 8 LUNS/fiber card with some non-hp disk arrays(Xiotech for example).

SEP
Steven E Protter
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Re: General: Total # of logical FC disk devices with HP-UX 11.i

These are A6795A's HP Tachyon XL2 connected to a huge EMC DMX swith and frame. Would that make a difference?

THANX

jpn
Deoncia Grayson_1
Honored Contributor

Re: General: Total # of logical FC disk devices with HP-UX 11.i

Check this document out:

http://docs.hp.com/en/1891/maxlun-whitepaper-v1.0.pdf

Hope this helps!
If no one ever took risks, Michelangelo would have painted the Sistine floor. -Neil Simon
Florian Heigl (new acc)
Honored Contributor

Re: General: Total # of logical FC disk devices with HP-UX 11.i

Parameter: fcp_large_config

You have to set this kernel parameter to address >127 devices / path
yesterday I stood at the edge. Today I'm one step ahead.

Re: General: Total # of logical FC disk devices with HP-UX 11.i

Thanx All !!!

jpn