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тАО05-12-2009 05:03 AM
тАО05-12-2009 05:03 AM
Question: Would I also set the Preferred Path (Failover/Failback) on the individual virtual disk to 'balance' the overall traffic between the two controllers? If not, what would prevent all virtual disks from getting controlled by the same controller, assuming the array is working normally?
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
Solved! Go to Solution.
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тАО05-12-2009 05:09 AM
тАО05-12-2009 05:09 AM
Re: Windows 2003+ MPIO with ALB and EVA Preferred Path?
If one I/O comes to MPIO and the previous I/O has not yet been completed, MPIO will send it through another path (as it has queue lenght = 0).
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тАО05-12-2009 06:16 AM
тАО05-12-2009 06:16 AM
Re: Windows 2003+ MPIO with ALB and EVA Preferred Path?
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
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тАО05-12-2009 07:18 AM
тАО05-12-2009 07:18 AM
Re: Windows 2003+ MPIO with ALB and EVA Preferred Path?
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тАО05-12-2009 08:28 AM
тАО05-12-2009 08:28 AM
Re: Windows 2003+ MPIO with ALB and EVA Preferred Path?
Lastly: If Preferred Path is set to None on all vdisks, all hosts are using ALB and all paths are good, will the controllers ever spontaneously move a vdisk between themselves to reduce the load on a controller?
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
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тАО05-12-2009 09:26 AM
тАО05-12-2009 09:26 AM
Solutiona) between the controllers (EVA set prefered path) and
b) between the paths of the managing controllers (MPIO ALB)
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тАО05-12-2009 10:48 AM
тАО05-12-2009 10:48 AM
Re: Windows 2003+ MPIO with ALB and EVA Preferred Path?
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company