G-SPEED Product Guide

APPENDIX A

RAID

 

 

 

 

Level

Description

Advantage

Disadvantage

Ideal For…

0

Disk striping

Offers the highest

No fault tolerance -

Content creation

 

 

performance and

failure of one drive

applications

 

 

useable storage

in the array results

 

 

 

capacity

in complete data

 

 

 

 

loss

 

 

 

 

 

 

1

Mirroring

High level of fault

Not the most

Applications in

 

 

tolerance

efficient in regards

which data

 

 

 

to capacity as

security is

 

 

 

useable storage

paramount

 

 

 

space is cut in half

 

 

 

 

 

 

3

Disk striping

High level of

 

Content creation

 

with

read/write

 

applications

 

dedicated

performance, fault-

 

requiring high-

 

parity drive

tolerant, disk

 

performance and

 

 

failure has

 

data security

 

 

insignificant impact

 

 

 

 

on performance

 

 

 

 

 

 

 

5

Disk striping

High read

Disk failure results

File servers,

 

with

performance,

in drop in

database

 

distributed

medium write

performance

applications

 

parity

performance, fault-

 

 

 

 

tolerant

 

 

 

 

 

 

 

6

Disk striping

An extension of

Lower performance

Mission critical

 

with dual-

RAID 5 with a

than RAID 3 or

data

 

distributed

second

RAID 5

 

 

parity

independent

 

 

 

 

distributed parity

 

 

 

 

scheme. High level

 

 

 

 

of fault tolerance.

 

 

 

 

Two drives in the

 

 

 

 

array can fail

 

 

 

 

without data loss.

 

 

 

 

 

 

 

JBOD

Just-a-

Each drive can be

No fault tolerance

Audio

 

bunch-of-

accessed as an

 

applications

 

disks

individual volume.

 

 

 

 

 

 

 

Page 17

Page 17
Image 17
G-Technology 0G01868 warranty Appendix a, Raid