3 raid levels, 1 disk striping (raid 0) – Rosewill HDD RAID RSV-S4-X User Manual

Page 11

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4 Bay SATA to eSATA 3.5” HDD RAID Storage System

RSV-S4-X

User Manual

11

high security volume, the greem section is the middle security volume and the light blue

shows the unprotected area.

Figure 1: Dividing Disks into Members

2.3 RAID LEVELS

2.3.1

DISK STRIPING (RAID 0)

Striping is a performance-oriented, non-redundant data mapping technique. While Striping is

discussed as a RAID Group type, it is does not provide any fault tolerance. With modern

SATA and ATA bus mastering technology, multiple I/O operations can be performed in

parallel, enhancing data throughput. Striping arrays use multiple disks to form a larger virtual

disk. The figure below illustrates a three-disk stripe set. Stripe one is written to disk one,

stripe two to disk two, and so forth. RAID 0 sets can be comprised of two, three, or four

drives. If the sizes of the disk segments are different, the smallest disk segment will limit the

overall size of the RAID Group.

Stripe2

Stripe5

Stripe8

Stripe11

Stripe0

Stripe3

Stripe6

Stripe9

Stripe1

Stripe4

Stripe7

Stripe10

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