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тАО02-19-2009 04:46 PM
тАО02-19-2009 04:46 PM
I have two HP9000/rp5430 servers connected to a VA7100 using two FC switches. Each HP server has two fibrechannel HBAs connected to the switch. When I run "ioscan -fnC fc" the output displays:
Class I H/W Path Driver S/W State H/W Type Description
=================================================================
fc 0 0/10/0/0 td CLAIMED INTERFACE HP Tachyon XL2 Fibre Channel Mass Storage Adapter
/dev/td0
fc 1 0/12/0/0 td CLAIMED INTERFACE HP Tachyon XL2 Fibre Channel Mass Storage Adapter
/dev/td1
This shows that there are two HBAs. When I run "fcmsutil /dev/td0 get remote all", then the response comes back: "No devices found".
When I run "fcmsutil /dev/td1 get remote all", then the response comes back:
Target N_Port_id is = 0x010027
Target state = DVS_READY
Symbolic Name = HP A6188A HP22
Port Type = NL_PORT
etc....
Why do I get the target returned when looking at /dev/td1 but nothing when looking at /dev/td0 ???
I have physically checked both HBAs on both servers, and they are operational with both green link lights.
Any ideas ??
Solved! Go to Solution.
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тАО02-19-2009 10:43 PM
тАО02-19-2009 10:43 PM
SolutionWhat is this command telling you?
# armdsp -a
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО02-20-2009 04:15 PM
тАО02-20-2009 04:15 PM
Re: Missing FC Links to VA7100 disk array
PORTS
Settings for port M/C1.H1:
Port ID:______________________________110
Behavior:_____________________________HPUX
Topology:_____________________________Private Loop
Queue Full Threshold:_________________750
Data Rate:____________________________1 GBit/sec
Settings for port M/C2.H1:
Port ID:______________________________108
Behavior:_____________________________HPUX
Topology:_____________________________Private Loop
Queue Full Threshold:_________________750
Data Rate:____________________________1 GBit/sec
Seems to look OK.
It appears that the HP server can communicate to the disk array just fine through a single FC HBA. I'm just wondering why the HP server does not use both HBA's. I would expect to see the array device through both FibreChannel HBA cards: /dev/td0 and /dev/td1.
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тАО02-21-2009 04:49 AM
тАО02-21-2009 04:49 AM
Re: Missing FC Links to VA7100 disk array
you got any multipathing software on this system ? which version of hp-ux is it / see this thread :-
http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1235220222428+28353475&threadId=1227457
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тАО02-21-2009 04:56 AM
тАО02-21-2009 04:56 AM
Re: Missing FC Links to VA7100 disk array
also on the array do you have any lun masking in place ?
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тАО02-24-2009 08:18 AM
тАО02-24-2009 08:18 AM
Re: Missing FC Links to VA7100 disk array
The version of OS is HP 11i, V2. There is no extra multipathing software installed such as "SecurePath".
However, it appears from some of your answers, that I need to use PVlinks to setup a multi-path to the LUNs on the disk array. I haven't used this utility. Is there any appropriate documentation that describes how to use pvlinks to do this task?
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тАО02-24-2009 08:22 AM
тАО02-24-2009 08:22 AM
Re: Missing FC Links to VA7100 disk array
If you have a VG with a disk, let's say
c1t2d3
and an alternate path with device
c2t2d3
you just vgextend your VG with this device.
That's it.
Could you post an
# ioscan -fn
and
# armtopology
first?
Hope this helps!
Regards
Torsten.
__________________________________________________
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those who understand binary, and those who don't.
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тАО02-24-2009 09:20 AM
тАО02-24-2009 09:20 AM
Re: Missing FC Links to VA7100 disk array
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тАО02-24-2009 09:23 AM
тАО02-24-2009 09:23 AM
Re: Missing FC Links to VA7100 disk array
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО02-24-2009 09:31 AM
тАО02-24-2009 09:31 AM