Clas Ohlson HYY-P1211, Руководство пользователя

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* RAID configuration
Stripe (RAID 0) (for higher speed)
With two identical hard drives connected in stripe configuration data
is written with alternation to both hard drives, which can give double
increased read and write ability speed. With two identical hard drives
one can double the speed in theory. The actual speed is predicted by
the system’s total performance. The size of a hard drive in stripe confi-
guration is the sum of the connected hard drives.
Advantages: Increased performance and volume capacity.
Disadvantages: All data cannot be retrieved in case of hard drive fai-
lure or breakdown.
Mirroring (RAID 1) (gives fault tolerance)
With two identical hard drives connected in mirror configuration data is
written to both hard drives. If one of the hard drives breaks down, the
information will still be saved on the other (working) hard drive. After
replacing a broken hard drive the information is mirrored from one hard
drive to the new one automatically. With four hard drives the stripe and
mirror functions can be combined. The size of a hard drive in mirror
configuration is the same as each separate hard drive.
Advantages: All the data can be reset in case of hard drive failure or
breakdown (one hard drive must be undamaged).
Disadvantages: The storing capacity decreases, data takes double the
space (writes the same data to two hard drives), writing to disk is slower
(data is written twice).
JBOD (just a bunch of disks)
All connected hard drives are put together to greater volumes. It gives
no backup or increased performance.
Instruction manual in English on the CD:
X:\Readme.htm where”X:” Is the unit symbol for your CD-ROM reader.
Disposal
Follow local ordinances when disposing of this product. If you are un-
sure about how to dispose of this product contact your municipality.