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CHAPTER 6: NVIDIA RAID FUNCTIONS

6.1 OPERATION SYSTEM

Supports Windows XP Home/Professional Edition, and Windows 2000

Professional.

6.2 RAID ARRAYS

NVRAID supports the following types of RAID arrays:

RAID 0: RAID 0 defines a disk striping scheme that improves disk read and writes

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.

Spanning (JBOD): JBOD provides a method for combining drives of different

sizes in to one large disk.

6.3 HOW RAID WORKS

RAID 0:

The controller “ stripes” data across

multiple drives in a RAID 0 array

system. It breaks up a large file into

smaller blocks and performs disk reads

and writes across multiple drives in

parallel. The size of each block is

determined by the strip size parameter,

which you set during the creation of the

RAID set based on the system

environment. This technique reduces

overall disk access time and offers high

bandwidth.

Features and Benefits

- Drives: Minimum 1, and maximum is up to 6 or 8. Depending on the

platf orm.

- Uses: Intended f or non-critical data requiring high data throughput, or any

env ironment that does not require f ault tolerance.

- Benefits: prov ides increased data throughput, especially f or large files.

No capacity loss penalty f or parity.

- Drawbacks: Does not deliver any fault tolerance. If any drive in the array

f ails, all data is lost.

- Fault Tolerance: No.

Blo ck 1

Block 3

Block 5

Blo ck 2

Block 4

Block 6

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