SAP Data Storage Migration from HP EVA SAN to NetApp FAS3070 FMC for M5000s

Good day all
We are needing to perform a storage migration for SAP Data that is currently on 2 HP EVA SANs. We have 2 SUN M5000s, 2 SUN E2900s and a couple of V490s, that all connect to the SAN via Cisco 9506 Directors. We have recently commissioned a NetApp Fabric Metrocluster on 2 FAS 3070s, and need to move our SAP Data from the EVAs to the new Metrocluster. Our SUN boxes are running Solaris 10. It was suggested that we use LVM to move the data, but I have no knowledge when it comes to Solaris.
I have some questions, which I hope someone can assist me in answering:
- Can we perform a live transfer of this data with low risk, using LVM? (Non-disruptive migration of 11Tb)
- Is LVM a wise choice for this task? We have Replicator X too, but have had challenges using it on another Metrocluster.
- I would like to migrate our Sandbox, as a test migration (1.5Tb), and to judge the speed of the data migration. Then move all DEV and QA boxes across, before Production data. There are multiple zones on the hardware mentioned above. Is there no simple way of cloning data from the HP to the NetApp, and then re-synching before going live on the new system?
- Would it be best to have LUNs created with the same volume on the new SAN as the HP EVA sizings, or is it equally simple to create "Best Practise" sized LUNs on the other side before copying data across? Hard to believe it would be equally simple, but we would like to size the LUNs properly.
Please assist, I can get further answers, if there are any questions in this regard.

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