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тАО07-02-2009 06:41 AM - last edited on тАО08-17-2014 11:18 PM by Lisa198503
тАО07-02-2009 06:41 AM - last edited on тАО08-17-2014 11:18 PM by Lisa198503
Hi,
we currently mirror 2 EVA 6000s with host-based mirroring in HP/UX.
Unfortunately, VMWare is not able to mirror LUNs, so we probably will need to use Continuous Access.
Is it possible to achieve transparent fault tolerance with Continuous Access? If one EVA fails, VMWare is not supposed to notice.
If this is not possible, then at least is it possible to implement transparent switching for a planned downtime like a controller firmware update?
best regards,
Michaela
P.S. This thread has been moved from Disk Array to Storage Area Networks (SAN) (Enterprise). -HP Forum Moderator
Solved! Go to Solution.
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тАО07-02-2009 08:50 AM
тАО07-02-2009 08:50 AM
Solutionyes you can manual failover only with VMwares.
The automatic failover called CLX is supported for Linux and Windows.
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c01710704/c01710704.pdf?jumpid=reg_R1002_USEN
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тАО07-02-2009 11:53 AM
тАО07-02-2009 11:53 AM
Re: Host based mirroring vs Continuous Access on EVA6000
there is no way to get a transparent failover with CA. You need some kind of storage virtualization, like DataCore SANmelody/ SANsymphony etc.
You can achieve a semi-automatic (but not transparent) failover with RSM or VMware Site Recovery Manager.
Best regards,
Patrick
Patrick
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тАО07-02-2009 11:52 PM
тАО07-02-2009 11:52 PM
Re: Host based mirroring vs Continuous Access on EVA6000
best regards,
Michaela
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тАО07-03-2009 12:06 AM
тАО07-03-2009 12:06 AM
Re: Host based mirroring vs Continuous Access on EVA6000
You would have to plug the 'secondary' EVA to the 'primary' Fibre Channel switches, because the addresses are defined by the switch.
The 'seamless failover' solutions have the ability to 'spoof' to source system's World Wide Port Names. The EVA does not have this feature.
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тАО07-03-2009 12:29 AM
тАО07-03-2009 12:29 AM
Re: Host based mirroring vs Continuous Access on EVA6000
We'll have HP with us next week, maybe they can offer some solution. I'll keep you updated.