 |
Definition of RAID
"Redundant Array of Independent Disks"
A computer storage technology which, utilizing an
intelligent controller, combines two or more magnetic disk drives to appear as one single
disk thereby, providing higher capacity, performance and reliability for stored data.
Hardware vs. Software RAID
|
Feature |
Hardware
RAID |
Software
RAID |
|
|
RAID
Levels Supported |
0,1,3,5 |
0,1,5 |
|
|
Hot
Swap Disk Drives |
Yes |
No |
|
|
Hot
Spare Support |
Yes |
No |
|
|
Maximum
Drives Supported |
120 |
32 |
|
|
Dedicated
RAID Processor |
Yes |
No |
|
|
Dedicated
Cache Memory |
Yes |
No |
|
|
Redundant
Controller Option |
Yes |
No |
|
|
Multiple
Host & OS Support |
Yes |
No |
|
|
Major
Advantages |
High
Reliability
High Performance
High Capacity |
Low Cost |
|
|
