You use LUN security to eliminate the possibility of a host writing data to a LUN that is not owned by that host.
To eliminate the possibility of a non Data ONTAP host overwriting DMX array LUNs owned by a
V-Series system or vice versa, you must present the DMX logical devices through the host (channel) director ports in either of the following ways:
- Present only the DMX logical devices for V-Series on specific DMX host (channel) director ports that are dedicated to V-Series use.
- Use LUN masking to associate all DMX logical devices to all host (channel) director ports, but allow only the V-Series FC initiator ports to see the LUNs for V-Series.
Attention:
Do not present the VCMDB LUN to all hosts by default. Configure the global setting to restrict visibility to the VCMDB unless it has been specifically made visible to a particular host.
If you are setting up a configuration in which you are using multiple array LUN groups for V-Series, set up a separate "host group" for each group of LUNs for V-Series.