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тАО02-18-2005 11:08 PM
тАО02-18-2005 11:08 PM
What does Topology in VA Configuration?
What are the usages of it?
What is the difference between each one (loop,pttop,...)?
Is it possible connecting the VA to just one server directly without SAN Switch? In this case what is the suitable topology in this case?
Alireza
Solved! Go to Solution.
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тАО02-18-2005 11:31 PM
тАО02-18-2005 11:31 PM
Re: What does Topology mean in VA Configuration?
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тАО02-19-2005 12:23 AM
тАО02-19-2005 12:23 AM
Re: What does Topology mean in VA Configuration?
What about other questions? Are ther any documents that i can find the qnswers of following questions?
What does Topology in VA Configuration?
What are the usages of it?
What is the difference between each one (loop,pttop,...)?
Alireza
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тАО02-19-2005 07:54 PM
тАО02-19-2005 07:54 PM
Solution'loop' is a Fibre Channel Arbitrated Loop (FC_AL, private loop). A bit, but not exactly like token ring. You can have multiple hosts on this loop.
'pttop' sounds like 'point-to-point' to me. But it is possible a little error, because the next topology level is called 'public loop'. A public loop includes a port from a fibre channel fabric switch. It is a way to have multiple servers share a fibre channel switch's port and get them to talk to different devices in the fabric.
The last one is called DFA (Direct Fabric Attached Topology). It means that the VA's host port has a direct connection to the fibre channel switch. It is also using a different protocol to more efficiently talk to the switch (no loop handling necessary).
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тАО02-19-2005 10:05 PM
тАО02-19-2005 10:05 PM
Re: What does Topology mean in VA Configuration?
Is it possible to use the both Host ports of VA simultaneously? Or always one of them is a backup for failover?
Alireza
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тАО02-19-2005 11:37 PM
тАО02-19-2005 11:37 PM
Re: What does Topology mean in VA Configuration?
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тАО02-20-2005 01:56 AM
тАО02-20-2005 01:56 AM
Re: What does Topology mean in VA Configuration?
Does it need any especial confiuration for this purpose?
Another question; Whenever i connect both host ports to SAN SWITCH, in server side I will get every LUNs with 2 names as the result of ioscan.
I mean if i created a LUN,ioscan find it 2 times with 2 diffrenet names. Is it something wrong?
Alireza
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тАО02-21-2005 01:33 AM
тАО02-21-2005 01:33 AM
Re: What does Topology mean in VA Configuration?
Windows 2000 will see two different drives. Autopath and securepath is software that will handle this for windows. There is also a new free driver software called MPIO that might also work. You need to check is it supports the va.
You can download MPIO drivers from HP.
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тАО02-21-2005 04:55 AM
тАО02-21-2005 04:55 AM
Re: What does Topology mean in VA Configuration?
But I Forgot to say it is a HP-UX server on HP9000 platforms.
Alireza
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тАО02-21-2005 07:04 PM
тАО02-21-2005 07:04 PM
Re: What does Topology mean in VA Configuration?
If you want to use both disk paths, you need SecurePath also for HP-UX. SecurePath is an add on product which has to be purchased separatly. Without SecurePath you should configure your SAN for Single Path, that is, Zone your switches so that only one path is avialabel for each host.