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The number of MEDITECH hosts in your environment determines the number of LUNs that are created within the NetApp FAS or AFF system. The Hardware Configuration Proposal specifies the size of each LUN.
MEDITECH LUNs that are dedicated for MEDITECH hosts can be either thick or thin provisioned.
LUN operating system type
To properly align the LUNs that are created, you must correctly set the operating system type for the LUNs. Misaligned LUNs incur unnecessary write operation overhead, and it is costly to correct a misaligned LUN.
The MEDITECH host server typically runs in the virtualized Windows Server environment by using the VMware vSphere hypervisor. The host server can also run in the Windows Server environment on a bare-metal server. To determine the correct operating system type value to set, refer to the “LUN Create” section of Clustered Data ONTAP 8.3 Commands: Manual Page Reference.
To determine the LUN size for each MEDITECH host, see the Hardware Configuration Proposal (new deployment) or the Hardware Evaluation Task (existing deployment) document from MEDITECH.
MEDITECH requires that storage for program, dictionary, and data files be presented to MEDITECH hosts as LUNs by using the FC Protocol. In the VMware virtual environment, the LUNs are presented to the VMware ESXi servers that host the MEDITECH hosts. Then each LUN that is presented to the VMware ESXi server is mapped to each MEDITECH host VM by using RDM in the physical compatibility mode.
You should present the LUNs to the MEDITCH hosts by using the proper LUN naming conventions. For example, for easy administration, you must present the LUN
MTFS01E to the MEDITECH host
Refer to the MEDITECH Hardware Configuration Proposal when you consult with the MEDITECH and backup system installer to devise a consistent naming convention for the LUNs that the MEDITECH hosts use.
An example of a MEDITECH LUN name is
MTFS05E, in which:
MTFSdenotes the MEDITECH file server (for the MEDITECH host).
05denotes host number 5.
Edenotes the Windows E drive.