MS-7374 Mainboard

Introduction

System Requirement

Operating System Support

NVRAID supports the following operating systems:

Windows XP, W indows Vista

RAID Arrays

NVRAID supports the following types of RAID arrays described in this section: RAID 0: RAID 0 defines a disk striping scheme that improves the disk read and write times for many applications.

RAID 1: RAID 1 defines techniques for mirroring data.

RAID 0+1: RAID 0+1 combines the techniques used in RAID 0 and RAID 1 arrays.

RAID 5: RAID 5 defines techniques for parity data.

Spanning (JBOD): JBOD provides a method for combining drives of different sizes into one large disk

Summary of RAID Configurations

Array

Uses

Advantages

Drawbacks

# Hard

Fault

 

 

 

 

Disks

Tolerance

 

 

 

 

 

 

RAID 0

Non-critical data

High data throughput.

No fault tolerance.

multiple

None

 

requiring high

 

 

 

 

 

performance.

 

 

 

 

 

 

 

 

 

 

RAID 1

Small databases or any

100% data

Requires 2 drives for

2

Yes

 

other small capacity

redundancy.

the storage space of 1

 

 

 

environment requiring

 

drive.

 

 

 

fault tolerance.

 

 

 

 

 

 

 

 

 

 

RAID 0+1

Critical data requiring

Optimized for both

Requires 2 drives for

4+

Yes

 

high performance.

100% data

the storage space of 1

 

 

 

 

redundancy and

drive—the same as

 

 

 

 

performance.

RAID level 1.

 

 

 

 

Allows spare disks.

 

 

 

 

 

 

 

 

 

RAID 5

Critical data and

Fault tolerance and

Decreased write

3+

Yes

 

reasonable level of

better utilization of

performance due to

 

 

 

performance.

disk space.

parity calculations.

 

 

 

 

 

Requires at least

 

 

 

 

 

three drives.

 

 

 

 

 

 

 

 

JBOD

Combining odd size

Combines and uses

Decreases

Multiple

No

 

drives into one big drive

the capacity of odd

performance because

 

 

 

 

size drives.

of the difficulty in

 

 

 

 

 

using drives

 

 

 

 

 

concurrently or to

 

 

 

 

 

optimize drives for

 

 

 

 

 

different uses.

 

 

 

 

 

 

 

 

B-2

Page 88
Image 88
Nvidia MS-7374 Introduction, System Requirement, RAID Arrays, Summary of RAID Configurations, Operating System Support