Recently we had a task for full data migraiton from old HP MSA 2312 FC to HP EVA 6400. The MSA was used mostly for VSphere and hosted several VMFS datastores. Basically, the whole procedure for migration was quite simple though it had to be done very carefully.
However, we faced a challenge. I have had experience on migration of VMs between storages and VSpheres at the same time (and even the between different versions - 3.5 and 4.1), and basically I might easily make a draft migration plan. However this time there were 2 Production Virtual-Virtual MS Failover Clusters running in that VSphere. One failover cluster was running MS Windows 2003 and Exchange Server. Another cluster was running Windows 2008 Failover Cluster and SQL Cluster. Both clusters were using RDM disks in Physical Compatibility mode. Since services running on these cluster were quite important for we couldn't have long downtime.
However, we faced a challenge. I have had experience on migration of VMs between storages and VSpheres at the same time (and even the between different versions - 3.5 and 4.1), and basically I might easily make a draft migration plan. However this time there were 2 Production Virtual-Virtual MS Failover Clusters running in that VSphere. One failover cluster was running MS Windows 2003 and Exchange Server. Another cluster was running Windows 2008 Failover Cluster and SQL Cluster. Both clusters were using RDM disks in Physical Compatibility mode. Since services running on these cluster were quite important for we couldn't have long downtime.
