Accusys ExaSAN A12S2-PS - Manual (Page 66)

4. How to Use
User Guide Page 4-15
amount of time required for the initialization process varies depending on the disk
volume.
Performance evaluation – Select to evaluate the performance of the target array. Data
and parity are not initialized. (No data protection when this mode is on).
Note
Once you click Create Array and you have selected On-the-fly
initialization, you will see the initializing % on the Main screen.
You will be able to use and configure the array immediately if it is
created using On-the-fly initialization. However, the RAID
performance of the array will be slightly lower than usual before
the initialization is complete.
Assign LUN automatically
Check this box to automatically assign a LUN. You may choose to assign LUN manually
under Options. However, you will not be able to use the RAID volume until it has been
assigned a LUN.
Click Create Array to complete the process.
Note
If you attempt to create a RAID set without meeting the
minimum required number of hard disk drives, and error message
will pop up after clicking Create Array .