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Chapter 5: WebPAM
75
Logical Drive Migration and Expansion
The Logical Drive–Migration tab enables you to migrate or expand a logical drive.
Migration is the process of changing the RAID level of an existing logical drive.
Expansion is the process of adding more physical drives to a logical drive while
keeping the same RAID level.
The Migration feature applies to certain combinations of RAID level and number
of physical drives, as described in the table below.
The Expansion feature applies only to RAID 0 and RAID 5 logical drives. You can
add physical drives to a logical drive, up to eight drives, the maximum number
supported by the FastTrak controller.
Migration and Expansion are not available for JBOD.
For more information, see “Logical Drive Expansion” on page 104 and “RAID
Level Migration” on page 105.
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.
3.
Click on the Migration tab in Management View.
From
To
Result
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
Increased performance
and capacity, adds
redundancy
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
Summary of Contents for FastTrak TX4310
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