As part of configuring your SAN environment, you must create LUNs, create your initiator groups (igroups), and map your LUNs to your igroups.
The metadata for each LUN requires approximately 64 KB of space in the containing aggregate. When you create a LUN, you must ensure that the containing aggregate has enough space for the LUN's metadata. If the aggregate does not contain enough space for the LUN's metadata, some hosts might not be able to access the LUN.
If necessary, you can grow your LUN up to 10 times its original size. For example, if you create a 100 GB LUN, you can grow that LUN to 1,000 GB. You cannot exceed 16 TB, which is the maximum LUN size.
Asymmetric logical unit access (ALUA) is always enabled during LUN creation. You cannot change the ALUA setting.