WebPAM User Manual
Chapter 5: Monitor and Manage
69
The Expansion feature applies only to RAID 0 and RAID 5 arrays. You can add 
physical drives as described in the table below.
For more information, see “Migration and Expansion” on page 99.
You can set up an Migration to begin immediately (on demand) or schedule a 
Migration for a time when there is less demand on the RAID system. 
On Demand
To migrate a logical drive:
1. Click on the Logical Drive View   icon in Tree View.
2. Click on the Logical Drive   icon of the logical drive you want to migrate.
RAID 0: 1 or 2 drives RAID 5: 3 or 4 drives Increased performance 
and capacity, adds 
redundancy
RAID 10: 4 drives
RAID 0: 3 drives RAID 5: 4 drives ncreased performance 
and capacity, adds 
redundancy
RAID 10: 4 drives
RAID 1: 2 drives RAID 5: 3 or 4 drives Increased performance 
and capacity
RAID 10: 4 drives
RAID 10: 4 drives RAID 5: 4 drives Increased capacity
From To Result
RAID 0: 1 drive RAID 0: 2, 3 or 4 drives Increased capacity
RAID 0: 2 drives RAID 0: 3 or 4 drives Increased capacity
RAID 0: 3 drives RAID 0: 4 drives Increased capacity
RAID 5: 3 drives RAID 5: 4 drives Increased capacity










