LaCie 2big Quadra Enterprise Class handleiding

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Handleiding

LaCie 2big Quadra Enterprise Class • Design by Neil Poulton RAID

User Manual page 16

3.1.2. Concatenation

When disks are concatenated, their capacities are combined and

data is written to the primary disk in the array until is it full, and

then to successive disks (Fig. 08). Concatenation provides no per-

formance advantage or added measure of data safety. It is simply a

method of combining more than one physical disk into one volume

for greater overall capacity.

Concatenation allows full use of the capacity of all disks in the array

and most data can survive a disk failure. Only data on the failed disk

and data that is partially written on the failed disk and an operative

disk is lost.

Offers the maximum possible capacity by combining the capacities

of several drives into one large volume.

3.1.3. Safe (RAID 1)

In Safe mode (RAID 1), the two physical disks are mirrored together

so that one single logical volume mounts on the desktop (Fig. 09).

All data is saved simultaneously on each disk (the available capacity

cannot exceed the available capacity of the lowest-capacity single

disk). If one physical disk fails, the data is available immediately on

the second disk. No data is lost if one disk fails.

Disk 1 Disk 2

Fig. 08

Fig. 09

Applications

✦ Maximum data safety

✦ Safe reduces the total available capacity by 50% be-

cause two copies of the data are saved.

Bekijk gratis de handleiding van LaCie 2big Quadra Enterprise Class, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.