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Is changing the FCID from dynamic to static disruptive for HP-UX?
The currect FCID is dynamically assigned to (some of) our HP-UX machines. I'd like to change this FCID to static, but when I do so, will the HP-UX notice anything of this change ?
In other words: is changing the FCID setting from Dynamic to Static nondisruptive or not ?
dynamox
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December 20th, 2011 07:00
you did not pay attention to what i highlighted in my previous post, did you ?
FCID persistence can be set at VSAN level, instead of setting it for each individual WWN.
fcdomain fcid persistent vsan 10
after making that change, i think you will need to restart fcdomain and that might be disruptive.
fcdomain restart vsan 10
dynamox
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December 20th, 2011 06:00
so right now this field is set to disabled for that VSAN ?
9134# sh fcdomain vsan 10
The local switch is the Principal Switch.
Local switch run time information:
State: Stable
Local switch WWN: 20:0a:00:0d:ec:94:9e:c1
Running fabric name: 20:0a:00:0d:ec:94:9e:c1
Running priority: 1
Current domain ID: 0x9b(155)
Local switch configuration information:
State: Enabled
FCID persistence: Enabled
Auto-reconfiguration: Disabled
Contiguous-allocation: Disabled
Configured fabric name: 20:01:00:05:30:00:28:df
Optimize Mode: Disabled
Configured priority: 1
Configured domain ID: 0x9b(155) (static)
dynamox
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December 20th, 2011 07:00
btw ..i thought persistent fcid was on by default ?
RRR
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December 20th, 2011 07:00
I'm not asking about the domain id, but I'm asking about setting the FCID to static instead of dynamic.
for example: on the commandline this example says:
fcdomain fcid database
vsan 150 wwn 50:01:43:80:05:68:e7:d8 fcid 0x340000
In the GUI it says "static" behind the 0x340000, where other hosts are set to dynamic. So that one's ok. The HP-UX that's still set to dynamic needs to be set to fixed and I'm wondering if this is nondisruptive for the host
RRR
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December 20th, 2011 07:00
or can FCID persistence now be enabled on a switch level instead of per wwn ?
RRR
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December 22nd, 2011 04:00
I wasn't aware of this option to be set on the VSAN level. I assumed it still had to be done at the wwn level. Thanks for the reminder about the highlighted text
damala
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August 11th, 2013 12:00
Hi RRR
Could you please tell me how did you work to set Persistent FCID while migrating from Cisco to Brocade.
RRR
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August 14th, 2013 03:00
It was a while back, but I think it was done by writing down the old FCIDs and looking up matching FCIDs on the new Brocade and physically connecting the patch cables to that port, since in Brocade you can't change the FCID.