LSI SCSI 320-0 Configuration page 135

Step 3 Run the Wizard,
Custom Configuration Defining Logical Drives, Cont'd
Step
1 Specify the RAID level by clicking on the RAID Level dropdown menu on the Logical
Drive Parameter screen and selecting a RAID level. The Wizard will not let you
configure an invalid RAID level. See the MegaRAID hardware guide for your board for
information about the requirements for each RAID level.
2 Set the size either by accepting the default or by clicking in the Size box and typing a
smaller size. If you specify a smaller size, there will be room in the array for additional
logical drives. Creating multiple logical drives in the same array disables FlexRAID, so
you cannot change RAID levels or add capacity. Do not mix redundant and non-
redundant logical drives in the same array.
3 Click on the Advanced button to set the stripe size, read policy, write policy, virtual
sizing, and cache policy. Click on the respective dropdown menus to display the choices
for each parameter. When finished, click on the OK button.
Note: If you use Power Console Plus to configure an array on a NetWare server,
you cannot use Writeback as the write policy.
4 Click on Accept when the logical drive parameters are set.
5 The next logical drive appears. If space is still available in the current array, the new
logical drive will appear in the array. Define any additional logical drives in the current
array that will not be spanned. The Wizard will continue to create logical drives for the
same array until there is no more space available in the array or until there are 40 logical
drives in the array (if you have a controller that supports 40 logical drives: Enterprise
1600, Elite 1600, or Express 500.) Continue to define logical drives as described above.
Spanning
Click on the Span Arrays box to create a logical drive that spans across all defined arrays
depending on the firmware's span depth. An array that encompasses both spanned arrays (labeled
something like A1-1) appears in the Logical Devices window. The capacity in the Size box
increases to reflect the spanned arrays.
Undoing an Array
When you are running the Configuration Wizard, you can always remove the last logical drive that
was created by clicking on the Undo button. You cannot undo an array after you have finished
running the Configuration Wizard.
6 When all logical drives are defined for the selected adapter, click on Next.
7 The Preview Configuration screen appears. All arrays, logical drives, and hot spares are
shown for the current adapter in the Logical Devices window.
All physical drives with their SCSI ID, Ready, or Spare status are shown in the Physical
Devices window. Click on Finish to accept the configuration as displayed. Click on Back
to return to the Logical Drive Definition screen to redefine logical drive parameters.
8 After you click on Finish, a dialog box prompts you to initialize. This option is
recommended.
9 Add newly configured logical drives to the NT Disk Administrator.
Continued
Action
Chapter 7 Configuring Arrays and Logical Drives
127