Migrating A Logical Drive - Promise Technology FastTrak TX4650 User Manual

FastTrak TX4650, TX2650 User Manual

Migrating a Logical Drive

To migrate a logical drive is to:
• Change its RAID level
• Add one or more physical drives
• Change its RAID level and add physical drives
Migration takes place on an existing Functional logical drive without disturbing
the existing data. While the logical drive is migrating, you can access the data as
before. When migration is complete, your logical drive will have a different RAID
level, a larger capacity, or both.For more information, see "Logical Drive
Migration" on page 119.
The FastTrak TX4650 supports the following logical drive migration:
From
RAID 0: 1 drive
RAID 0: 2 drives
RAID 0: 3 drives
RAID 1: 2 drives
RAID 5: 3 drives
RAID 10: 4 drives RAID 5: 4 drives
To
RAID 0: 2, 3, or 4 drives
RAID 1: 2 drives
RAID 5: 3 or 4 drives
RAID 10: 4 drives
RAID 0: 3 or 4 drives
RAID 5: 3 or 4 drives
RAID 10: 4 drives
RAID 0: 4 drives
RAID 5: 4 drives
RAID 5: 3 or 4 drives
RAID 10: 4 drives
RAID 5: 4 drives
90
Result
Increased performance and
capacity
Adds redundancy
Adds capacity and redundancy
Adds capacity and redundancy
Increased performance and
capacity
Adds capacity and redundancy
Adds capacity and redundancy
Increased performance and
capacity
Adds capacity and redundancy
Increased performance and
capacity
Increased performance and
capacity
Adds capacity
Increased performance and
capacity