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тАО08-30-2007 01:15 AM
тАО08-30-2007 01:15 AM
Example c5t0d0 --> c5t0d7 (3 are missing)
Originally I had d0 --> d2 but 8 more where added this week for extra storage.
The storage team advise that they are presented and OK, yet the HPUX server only sees 5 of the new LUNS.
I have checked the document
http://docs.hp.com/en/7154/Max_LUN_whitepaper_v11.23.pdf
This advises that 11i V1 before 2003 can see 512 LUNs/ HBA and after 2003 December, with the correct patch level (which this server has) can use 1536 LUN's / HBA.
The Fibrecard is a dual A6826A, before I perform an unrequired reboot, any thopughts as my storage team think this is a HBA issue ?
Thanks
Paul
Solved! Go to Solution.
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тАО08-30-2007 01:20 AM
тАО08-30-2007 01:20 AM
Re: Maximum LUNS on a single HBA.
You checked with ioscan -fnC disk ? (Just to make sure)
The only other option I can see is that the LUN's are not mapped to your system's HBA-WWN's correctly.
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тАО08-30-2007 01:24 AM
тАО08-30-2007 01:24 AM
Re: Maximum LUNS on a single HBA.
Thanks
Paul
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тАО08-30-2007 01:54 AM
тАО08-30-2007 01:54 AM
Re: Maximum LUNS on a single HBA.
e.g.
0/10/0/0/0.20.8.0.0.0-7 ( luns 0-7 )
0/10/0/0/0.20.8.0.1.0-7 ( luns 8-15 )
and so on.
cxt0d0-7 then cxt1d0-7 ( this is lun 8-15 ), etc..
Unless some masking on the array is incorrect then there should be no issue.
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тАО08-30-2007 02:02 AM
тАО08-30-2007 02:02 AM
Re: Maximum LUNS on a single HBA.
yes, that makes sense.
On this system the H/W address are going upto
0/3/1/1.1.0.255.0.0.7
But not to the next
0/3/1/1.1.0.255.1.1.0
Thanks
Paul
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тАО08-30-2007 02:17 AM
тАО08-30-2007 02:17 AM
Re: Maximum LUNS on a single HBA.
0/3/1/1.1.0.255.0.0.0
0/3/1/1.1.0.255.0.0.1
0/3/1/1.1.0.255.0.0.2
...
0/3/1/1.1.0.255.0.0.7
This takes care of the first 8 luns and as you stated you can see these from the server.
Then we should see
0/3/1/1.1.0.255.0.1.0
0/3/1/1.1.0.255.0.1.1
0/3/1/1.1.0.255.0.1.2
but no luck.
The only thing I can think of is.
1) lun masking is incorrect
2) The presentation of the last three luns is down some different path that is not zoned for this server.
2) The HBA on the array is not set for HPUX ( not sure about this )
If other HPUX servers seem ok then use those configs to compare to this one.
Above are just troubleshooting ideas.
Any SecurePath products on this server ?
This just may be a weird FC thing and a reboot may just be your next best troubleshooting attempt.
If the reboot works it would be great to know why these next luns do not show on the fly.
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тАО08-30-2007 02:22 AM
тАО08-30-2007 02:22 AM
SolutionI had this bug myself Paul.
For HB storage 512 LUNS.
For the non-HP storage maximum of 8 LUNS.
I was promised a bug fix, and waited three years and did not receive it.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО08-30-2007 02:35 AM
тАО08-30-2007 02:35 AM
Re: Maximum LUNS on a single HBA.
"HITACHI DF600F" select hp-ux platform
and found a manual that says you need to set the platform on the array to hp-ux.
This sounds reasonable.
Please check this - this may solve your problem.
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО08-30-2007 03:14 AM
тАО08-30-2007 03:14 AM
Re: Maximum LUNS on a single HBA.
Oops and I have just sent a email to my storage chaps to blaming them ! Thats very bad of HP to do that, or not do that as the case were.
I may open a case and see where I get !
Thanks
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тАО08-30-2007 03:31 AM
тАО08-30-2007 03:31 AM
Re: Maximum LUNS on a single HBA.
For the non-HP storage maximum of 8 LUNS."
Whatever "HB" stands for, non-HP array products can present much more LUNs to HP-UX.
Ask all the netapp, EMC, hitachi ... whatever users!
The most important thing is to set set the right hostmode on the array (windows, hp-ux, vms, linux ... bla bla) due to different addressing modes.
A wrong mode can really limit the number of visible LUNs to 8 (0..7)!
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!