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тАО09-20-2006 02:45 AM
тАО09-20-2006 02:45 AM
EVA 5000 - single path disk shows up twice on Windows host
Thus removing the need for Multi-pathing software.
I had Microsoft, HP, Dell and Veritas (we're using Veritas volume manager) on a support call and we're all in agreement that how I have the zoning setup that the disk is only presented once to the host.
The problem is that my test Virtual Disk (5GB) is showing up twice in Veritas Volume manager on the host. But only shows up once in the registry.
Anyone seen this behaviour before? Anyone know how to fix it? :)
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тАО09-20-2006 03:01 AM
тАО09-20-2006 03:01 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
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тАО09-20-2006 04:56 AM
тАО09-20-2006 04:56 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
I should have mentioned.
In my zoning I have the bottom and top controllers to the EVA separated as follows:
Crontroller A Aliases (not real names)
a_EVA_top_even ->>> WWN
a_EVA_top_odd ->>> WWN
Controller B Aliases (not real names)
a_EVA_bottom_even ->>> WWN
a_EVA_bottom_odd ->>> WWN
So I'm zoning to the specific port on the controller.
Will what you say still apply or should my Host server now see only one path?
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тАО09-20-2006 05:01 AM
тАО09-20-2006 05:01 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
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тАО09-20-2006 05:09 AM
тАО09-20-2006 05:09 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
But yet it shows up twice.
We're going down the driver / Veritas version compatibility road. That's probably where the problem exists.
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тАО09-20-2006 07:02 AM
тАО09-20-2006 07:02 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
Can you attach a text capture of your Zoning config?
Also, are you using Port zoning? or WWID zoning? Sounds like WWID zoning where you "Add Member" based on the WWID of the device. Are you using the WWNN? or the WWPN of the device? If you use the WWNN of the device, you actually give the host access to both EVA ports on that particular fabric.
Assuming you want to only give the host access to Controller A, your WWID in the alias should end with an "8" or a "9". For Controller B, it ends with a "C" or a "D".
Check your zoning. Compatibility does not seem to be an issue.
Steven
HP Master ASE, Storage, Servers, and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5, vSphere 6.x)
RHCE
NPP3 (Nutanix Platform Professional)
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тАО09-20-2006 08:47 AM
тАО09-20-2006 08:47 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
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тАО09-20-2006 08:48 AM
тАО09-20-2006 08:48 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
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тАО09-20-2006 08:57 AM
тАО09-20-2006 08:57 AM
Re: EVA 5000 - single path disk shows up twice on Windows host
The options are:
No preference
Path A - failover only
Path A - failover/failback
Path B - failover only
Path B - failover/failback
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тАО09-20-2006 09:02 AM
тАО09-20-2006 09:02 AM