Product manual

Chapter 4: Management with WebPAM PROe
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Step 2 – Logical Drive Creation
Logical Drive Creation enables you to specify logical drives under the new disk
array. Enter the information for a logical drive, then click the Update button. If
there is free capacity remaining, you can specify another logical drive now or wait
until later.
10. Choose a RAID level for the logical drive from the dropdown menu.
The choice of RAID levels depends on the number of physical drives you
selected.
11. RAID 50 only – Specify the number of axles for your array.
For more information on axles, see “RAID 50 – Striping of Distributed Parity”
on page 239.
12. Specify a Capacity and the unit of measure (MB, GB, TB).
This value will be the data capacity of the first logical drive in your new disk
array. If you specify less than disk array's maximum capacity, the remainder
will be available for additional logical drives which you can create later.
13. Specify a Stripe size from the dropdown menu.
8, 16, 32, 64, 128, 256 KB and 1 MB are available, 64 KB is the default.
14. Specify a Sector size from the dropdown menu.
512 B, 1, 2 and 4 KB are available, 512 B is the default.
15. Specify a Read (cache) Policy from the dropdown menu.
Read Cache, Read Ahead Cache and No Cache are available, Read Ahead
is the default.
16. Specify a Write (cache) Policy from the dropdown menu.
Write Back and Write Through (Thru) are available, Write Back is the default.
17. Click the Update button.
A new logical drive is displayed under New Logical Drives.
Repeat the above steps to specify additional logical drives as desired.
18. When you are done specifying logical drives, click the Next button.
Step 3 – Summary
The Summary lists the disk array and logical drive information you specified.
19. To proceed with disk array and logical drive creation, click the Submit
button.