Product manual

Chapter 3: Setup
65
Look for drives with a green LED dark, a blue LED lit, and no crosshatching
over the carrier.
3. Click a physical drive to select it for your array.
The physical drive’s ID number is added to the Selected list.
4. Click the Next button to continue.
The Create Logical Drive screen appears.
Step 2 – Logical Drive Creation
1. Enter your information and choose your options.
• Enter a logical drive alias in the field provided.
• Choose a RAID level from the dropdown menu.
The choice of RAID levels depends on the number of physical drives in
your array.
• Note the Max: capacity value. Then enter a capacity value the field
provided and choose a unit of measure from the dropdown menu.
• Choose a stripe size from the dropdown menu.
The choices are 64 KB, 128 KB, 256 KB, 512 KB, and 1 MB.
• Choose a sector size from the dropdown menu.
The choices are 512 B, 1 KB, 2 KB, and 4 KB.
• Choose the Read Cache Policy from the dropdown menu
The choices are Read Cache, Read Ahead (cache), and None.
• Choose the Write Cache Policy from the dropdown menu
The choices are WriteThru (write through) and WriteBack. Write back
requires a Read Cache or Read Ahead Read Cache Policy.
2. Click the Add button to continue.
The logical drive you just created appears in the New Logical Drives list.
3. Click the Next button to continue.
The Create Spare Drive screen appears.
Step 3 – Spare Drive Creation
Creating a spare drive is optional but highly recommended.
1. Enter your information and choose your options.
• Check the Revertible box if you want this spare drive to be revertible.
For more information see the VTrak E-Class Product Manual.
• Choose the option for the type spare drive you want.
Global – Replaces a failed drive in any disk array.
Dedicated – Replaces the failed drive only in the assigned disk array.