Acer G320 Manuale Utente Scaricare il pdf (Pagina 108)

Appendix B: SATA RAID configuration

Assigning RAID levels

Only one RAID level can be assigned to each array. The table below

displays the drives required per RAID level.

The factors you need to consider when selecting a RAID level are listed

in the table below:

RAID Level

Minimum number of

physical drives

Maximum number of

physical drives

0One Four

1Two Two

10 Four Four

Level

Description

and use

Pros Cons

No. of

Drives

Fault

Tole r an t

0 Data divided

in blocks and

distributed

sequentially

(pure striping).

Note: Use for

non-critical

data that

requires high

performance.

High data

throughput

for large

files

•No fault

tolerance.

• Data is lost if

a drive fails.

One to

four

1 Data

duplicated on

another disk

(mirroring).

Note: Use for

read-intensive,

fault-tolerant

systems.

100 percent

data

redundancy,

providing

fault

tolerance.

•More disk

space

required.

• Reduces

usable disk

space to the

size of the

smallest

drive.

• Reduced

performance

during

rebuilds.

Two Yes

1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 129 130

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Acer G320 Manuale Utente Pagina 108

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