Logical Drive Migration And Expansion - Promise Technology FastTrak TX4310 User Manual

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.
From
RAID 0: 1 or 2 drives
RAID 0: 3 drives
RAID 1: 2 drives
RAID 10: 4 drives
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
2. Click on the Logical Drive
3. Click on the Migration tab in Management View.
To
RAID 5: 3 or 4 drives
RAID 10: 4 drives
RAID 5: 4 drives
RAID 5: 3 or 4 drives
RAID 10: 4 drives
RAID 5: 4 drives
icon in Tree View.
icon of the logical drive you want to migrate.
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Chapter 5: WebPAM
Result
Increased performance
and capacity, adds
redundancy
Increased performance
and capacity, adds
redundancy
Increased performance
and capacity
Increased capacity