About Raid - Fantec QB-X2US3R User Manual

7) a raID
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JBOd MOde
Non-RAID: (Single Mode) computer will show up as two independent
drives. This function can be used if RAID is not required, if one HDD is
installed or two different brands or capacities of hDD are installed.
BIG MOde
RAID 0 - Spanning: Two hDDs will show up as one large single drive.
Spanning is an array (not RAID) which writes data sequentially over two
drives.
FANTEC QB-X2US3R 2-BAY 3.5" RAID
raId 0 MOde
RAID 0 - Striping: Two hDDs will show up as one large single drive
but speed performance will boost up. The two hDDs will write Data in
"column" effect. This form of array splits each piece of Data across
both hDDs in segments. Data are stored between first hDD and second
hDD. While the hDD is stripe in writing, the next head of next hDD is
move to next track to write. The Data are written without any form of
data-checking. Once one hDD is damaged and all data can be lost.
raId 1 MIrrOrInG MOde
RAID 1 – Mirroring: Using this mode we recommend 2 identical hDDs;
(the same capacity, brand and model number). Under RAID1, it will
create an extra copy (or mirror) set of data to the second drive. The
backup data are more important for safe keeping and the available data
only show up in one large single drive. This is useful when first hDD
fails and it can be replaced by second set of identical data instantly.
FANTEC QB-X2US3R 2-BAY 3.5" RAID
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