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тАО04-12-2007 02:28 PM
тАО04-12-2007 02:28 PM
Not able to see LUNs beyond 8 for HPUX
I have a HDS9970V with around 18 luns on a target connected to a port of "HP PCI-X 2.0 4GB Fibre Channel HBA". The host running HP-UX 11.23 cannot see beyond 0-7 luns when I do an ioscan.
So any ideas on why I am not seeing more than 8 luns ??
Is there any additional patch that I need so as to get this working ? Appreciate any help on this.
Thanks,
Amit Sethi
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тАО04-12-2007 03:45 PM
тАО04-12-2007 03:45 PM
Re: Not able to see LUNs beyond 8 for HPUX
For more than 16 LUNs, LUN addressing is required.
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тАО04-12-2007 03:53 PM
тАО04-12-2007 03:53 PM
Re: Not able to see LUNs beyond 8 for HPUX
I am new to HPUX and unix platform. If you could post your reply in details then it would be helpful. Like disable to Peripheral Device Addressing. How LUN addressing is done in HPUX.
Thanks
Amit Sethi
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тАО04-12-2007 04:27 PM
тАО04-12-2007 04:27 PM
Re: Not able to see LUNs beyond 8 for HPUX
http://www.hp.com/hpbooks/prentice/chapters/0130102229.pdf
http://www.docs.hp.com/en/7154/Max_LUN_whitepaper_v11.23.pdf
There is a document for configuring this stroage for HPUX (open-systems) as mentioned in this link.
http://192.18.109.11/875-3324-10/875-3324-10.pdf
If you have this document, go through it or else you might want to contact HDS support.
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тАО04-12-2007 10:10 PM
тАО04-12-2007 10:10 PM
Re: Not able to see LUNs beyond 8 for HPUX
I don't know much about 9900 series, but the Thunder 9500 series, you have to modify the Host Group Options. In HDS Storage Navigator there is an option under "Detail" called "HP Connection Mode 2". You need to set this so that HP-UX can see LUNs higher than Host LUN 7. (see screenshot)You can also use the "Simple" option and look under "Additional Parameters". You need to do this on both Storage Ports, if you are using Dual-Path. When you change this option, it interrupts I/O for the Host Group. If you are not using the disks yet, then it should not be too much of a problem.
Regards,
Stephen
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тАО04-13-2007 05:14 AM
тАО04-13-2007 05:14 AM
Re: Not able to see LUNs beyond 8 for HPUX
Thanks I am able to the see 5 LUNs for HDS9585V on each port of FC HBA as they are configured for dual path. So a total of 10 LUNs from 2 ports.
But I am not able to find a solution for HDS 9970V.
Amit Sethi
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тАО04-16-2007 02:24 AM
тАО04-16-2007 02:24 AM
Re: Not able to see LUNs beyond 8 for HPUX
check the Host LUN you have assigned. I would guess that on the 9585 you have uses HLUNs 0-4 on each port, so HP-UX would not have a problem there. But if you have more than 8 LUNs in one storage group on a particular port, you would need to set this option (as a rule, I always set it when I create a Host Security Group for an HP-UX Host)
Regards,
Stephen