Data Migration EVA — XP12000

We have a two server cluster with 9 LUNs between the Active/Active servers and the servers are running Windows 2K SP4 with a medical application. We need to migrate the data from an EVA5000 to an HP XP12000 and I would like some input on some ideas. Maxxan doesn't support the XP12000 yet, and the application vendor doesn't necessarily support Veritas Volume Mgr to mirror disks. Ideas on how to quickly get this data from one frame to the next? The storage capacity these 9 LUNs hold is ~7TB.

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You should be able to get the equivalent of HDS’s Universal Volume Manager from HP (not sure of their product name for the virtualization software) and connect the EVA to the XP. Once you map the LUNs on the EVA through the XP, you can use in-array replication to move the LUNs from the EVA into the XP.

We do this with our HDS USP and AMS arrays. We have EVAs, but do not currently virtualize them in the USP. We could virtualize them using Universal Volume Manager, so I’m sure HP allows the same.

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  • LUKEK1
    Hello, I was presented a similar situation about six months ago, but the funding for the XP fell through. Have you looked at FlexCopy? I know the XP is able to present EVA disk, and you many be able run FlexCopy or BusinessCopy XP to migrate the data with minimal downtime. Again, no real experience here but we have medical applications with strict vendor requirements, so I'm foreced to look at array only replication methods. I hope this points you in the right direction. Luke
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  • Espettit
    I've used a product called DoubleTake (which HP OEM's as OVSM) to do this in the past. Simply attach a temp server to the new SAN and replicate the data from one of the old LUNs to one of the new ones. When you're ready to cut over, just detach the old LUN & move the new LUN to your cluster using the same drive letter. The only one that is tricky is the Quorum drive (if you're using MSCS) as you will need to copy the disk signature from the old LUN to the new one. Fortunately MS has provided a utility for that. In my experiance, it will take about 3-4 days to replicate the 7TB over a 100MB LAN, but it should have no impact on your users and when it's finished mirroring it will keep the data up to date until you're ready to cut over. Good luck, Eric Pettit
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