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тАО05-23-2007 06:32 PM
тАО05-23-2007 06:32 PM
Re: EVA 8000 Events
It is Windows 2003 servers. Is it possible that a problem from the host side (multi-pathing software)can be responsible for the LUN failovers on the EVA? It is a NSPOF setup.
Thanx
Manie
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тАО05-24-2007 05:51 AM
тАО05-24-2007 05:51 AM
Re: EVA 8000 Events
It is also possible that this is an optimization operation by the controller firmware. If it finds out that a lot of traffic goes through the proxy controller for a given virtual disk, it moves it to this controller in order to offload the mirror ports.
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тАО05-24-2007 05:58 AM
тАО05-24-2007 05:58 AM
Re: EVA 8000 Events
In my opinion, Vdisk movements between TOP and BOTTOM HSV controller is based on the usage of particular Vdisk. In a scenario, if the BOTTOM HSV is receiving more IOs and Vdisk is presented on TOP HSV, it will be moved to BOTTOM HSV. This is independent from Host load balancing but you can still confirm if you have set the load balancing policy on your host or not? Run the command "hpdsm devices" and look under Policy column.
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тАО05-24-2007 07:02 AM
тАО05-24-2007 07:02 AM
Re: EVA 8000 Events
> Is it possible that a problem from the host side (multi-pathing software)can be responsible for the LUN failovers on the EVA?
What multi-pathing software are you using ?
It's probably also worth checking that the host OS is configured properly for the hosts in Command View...
Cheers,
Rob
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тАО06-27-2007 10:49 PM
тАО06-27-2007 10:49 PM
Re: EVA 8000 Events
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