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ioscan in a large config

 
antonio difruscia
Regular Advisor

ioscan in a large config

I have previously posted about a slow ioscan problem, and one of the solutions suggested was to setup zones. how much should I put in each zone so an ioscan does not take 8 minutes ? the setup I have is 10 brocade switches (2 brocades are core switches 8 are
leaf switches) I have 60+ nodes a mixture of
rx2600 rx4640 rx5670 running HP-UX 11.23 with patch bundle B.11.23.0409.3.. I have 3 EVAs
1 EVA3000 in A/P mode, 1 EVA3000 in A/A mode and a EVA8000.. some of the nodes are presented to 2 of the EVAs and some are presented to only 1..

thanks
TonyD
1 REPLY 1
antonio difruscia
Regular Advisor

Re: ioscan in a large config

I found the problem in my san, a node plugged into the san caused a delay on every node plugged into the san. the only thing I can find was this warning message that came up on the switch it was plugged into:

PLOGI s_id=0xa0f00 d_id=0xfffffc cos=0x8 df_size=2048

any idea what this message means ? If I unplug the node ioscan takes 35 seconds
on any node on the san, If i plug that node back in it takes 8 minutes. So, obviously it either what the node was running, the HBA, or the switch port. I can trouble shoot that down, but i would like to know is how to read that message i see on the switch..

thanks
TonyD