Buffalo HD-QL4TU3R5-EU [17/440] Spanning mode enables use as a large capacity hard drive

HD-QLU3 User Manual

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Spanning Mode (Enables use as a large-capacity hard drive)

In this mode, all four hard drives are combined into a large single drive with capacity equal to the sum of

the four individual drives. Because data is saved without distributing to the drives, the data access speed

is the same as that of an individual drive. Spanning mode has no mechanisms for protecting data. As a

result, failure of a single drive means that all data on the drives is lost.

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Example of Hard Drive Conguration

Conguration using HD-QL4TU3R5: Recognized as 4 TB (1 TB×4) hard drive

Data

①②③④

⑤⑥⑦⑧

・・・

Data is saved in

order starting from

the rst hard drive.

The total capacity

of all four drives is

usable.

Data

・・・

Data

・・・

Enables use as a large-

capacity hard drive

Data

①②③④

Data

⑤⑥⑦⑧