Raid 0 (striping), Raid 10 (striping and mirroring) – Accusys RAID Controller ACS-77100 User Manual

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User’s Manual

1.3. Understanding RAID Levels

1.3.1. RAID 0 (striping)

RAID 0 links each drive in the array to from one large drive.
Storage capacity is determined by the smallest drive in the array.
This capacity is then applied to format all other drive in the
array.
When using a 40GB, 50GB and a 60GB drive in a RAID 0 array,
your system will have, in effect, one 120GB drive (40GB x 3)

The diagram above represents the writing of data on a RAID 0
array composed of four disks connected to the controller. Data
block are distributed across all disks in the array.



Characteristics

ƒ RAID 0 implements a striped disk array, the data is broken down into blocks and each

block is written to a separate disk drive.

ƒ I/O performance is greatly improved by spreading the I/O load across many channels and

drives.

ƒ Fastest and most efficient array type but offers no fault-tolerance.


Recommended Uses

ƒ Video production and editing.

ƒ Image

editing.

ƒ Pre-press

applications.

ƒ Applications

requests

high-bandwidth.






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