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тАО10-16-2009 02:36 AM
тАО10-16-2009 02:36 AM
Luns visibility Issue
We have reinstalled one of old servers (Model : rp7410 OS :- hpux 11.11) in our datacenter, want to use for testing environment.
Our requirement is 5TB san luns in this server. But we are facing luns visibility issue.
Only 8 luns are visible after allocating 170 luns from IBM DS8k storage.
I am new in storage, so not able to identify that where ths issue is ?
Is it fc card issue ?
Prasanth V Aravindakshan
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тАО10-16-2009 03:02 AM
тАО10-16-2009 03:02 AM
Re: Luns visibility Issue
Have a look on this:
http://docs.hp.com/en/6054/LVM_Limits_White_Paper_V4.pdf
and the attachment.
Redgs..
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тАО10-16-2009 03:11 AM
тАО10-16-2009 03:11 AM
Re: Luns visibility Issue
ask the SAN administrator, if he presented all LUNs to your server.
mikap
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тАО10-16-2009 08:26 AM
тАО10-16-2009 08:26 AM
Re: Luns visibility Issue
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тАО10-16-2009 08:37 AM
тАО10-16-2009 08:37 AM
Re: Luns visibility Issue
Your responsibilty stops after running:
inst -f (* once or twice *)
inscan (* verify new device paths *)
If you've recreated new device paths with insf and you still can see them in ioscan then send it back to the SAN administrator.
Questions: Are you running any multipath application? What does this say.
Questions: Can you see the lun ids with a disk array command? Or the disk array id?
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тАО10-16-2009 08:38 AM
тАО10-16-2009 08:38 AM
Re: Luns visibility Issue
insf -e
ioscan -fnk
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тАО10-16-2009 08:39 AM
тАО10-16-2009 08:39 AM
Re: Luns visibility Issue
In this case , Please take advice from the Storage Team support
>>Is it fc card issue ? <<<
No if its fc card issue , you will not be able to seen nonce of the newly presented LUNS.
Chance could could be :-
once LUNS has been presented have you issued the below commands
# ioscan -fn
# insf -e
# ioscan -fnC disk
rgds,
Johnson
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тАО10-16-2009 07:21 PM
тАО10-16-2009 07:21 PM
Re: Luns visibility Issue
" Adapter at hardware path 1/0/2/0/0 : Fibre Channel driver has gone into non-participating mode"
...
what exactly mean by non-participating mode ?
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тАО10-16-2009 07:34 PM
тАО10-16-2009 07:34 PM
Re: Luns visibility Issue
It is not an FC card issue. The message might occured while you rebooted the server and the nogotiation is going on between the HBA and the other side device. This is related to the driver of the FC card. This event is known to be ignorable. There is patch to avoid this.
The patch "s700_800 11.11 Tachyon TL Fibre Channel Driver Patch (PHSS_31326 )" should stop these events in future.
By the way, did you check the storage settings? Or you can log a support case with HP if you still suspects an issue with the system. I feel the system or the card doesnt have any issues as you are able to see 8 LUNs
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тАО10-16-2009 08:45 PM
тАО10-16-2009 08:45 PM
Re: Luns visibility Issue
Checking the HBA may or may not be the solution. Checking the firmware levels; They must be the same on each, is certainly basic and necessary.
Quick specs for the rp7410 says :
PCI-X Dual Channel 2Gb Fibre Channel HBA A6826A
Lastest firmware: EFI 1.50 / RISC 3.3.171
11 May 2007
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=331475&prodTypeId=329290&prodSeriesId=331473&swLang=13&taskId=135&swEnvOID=54
PCI 2Gb single port fibre channel adapter A6795A
1.37 (17 Jul 2007)
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=US&swItem=ux-51838-2&prodTypeId=329290&prodSeriesId=432322
Check current with
ioscan -funC fc
fcmsutil /dev/fc## vpd