Hello everyone. Need some help on planning to upgrade a vCenter Server 4.1u2 with two esxi 4.1u2 hosts to 5.1u1. Some of the virtual machine has RDM (raw device mapping) LUN from the SAN. Question is, after upgrading the host from 4.1 to 5.1u1, is there be any problem with this RDM drive mapped with VMs? Will VMs with RDM going to powered on? Found some VM Document on upgrade process but cannot find on what to do when there is RDMs disk is involve.
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