Biostar TFORCE4 U User Manual download pdf (Page 13)

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User’s Manual

Chapter 3: NVIDIA RAID Functions

3.1 OPERATION SYSTEM

λ Supports Windows XP Home/Professional Edition, and Windows 2000

Professional.

3.2 RAID ARRAYS

NVRAID supports the following types of RAID arrays:

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

Spanning (JBOD): JBOD provides a method for combining drives of different sizes in to one

large disk.

3.3 H

OW 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 stripe

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 platform.

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

environment that does not require fault tolerance.

! Benefits: provides increased data throughput, especially for large files. No

capacity loss penalty for parity.

! Drawbacks: Does not deliver any fault tolerance. If any drive in the array fails,

all data is lost.

! Fault Tolerance: No.

Block 1

Block 3

Block 5

Block 2

Block 4

Block 6

1 2 ... 8 9 10 11 12 13 14 15 16 17 18

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Biostar TFORCE4 U User Manual Page 13

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