Rocstor ROCSECURE DE51, Руководство пользователя

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Rocstor® Rocsecure® DE51 [14]
RAID 3 (STRIPE SET WITH DEDICATED PARITY)

Minimum number of drives: 3

Unit Capacity: size of one drive times number of total drives minus one.
E.g. (4TB x 5 drives – 1 Drive = 16TB)

Spare: Yes

Fault tolerance: can withstand the loss of one drive without losing data. RAID 3 works by striping data for
individual i/0 blocks across all members except one, which contains parity data for the stripe set computed
internally by the Port Multiplier. In the event of failure, the missing information can be calculated using the
parity information.
RAID 5 (STRIPE SET WITH STRIPED PARITY)

Minimum number of drives: 3

Unit Capacity: size of one drive times number of total drives minus one.
E.g. (4TB x 5 drives – 1 Drive = 16TB)

Spare: Yes

Fault tolerance: can withstand the loss of one drive without losing data. RAID 5 works by striping data for
individual i/0 blocks across all members of the set, with each member taking turns carrying parity data
computed by the Port Multiplier. In the event of failure, the missing information can be calculated using the
parity information.
CLONE (MIRROR SET)

Minimum number of drives: 2

Unit Capacity: size of one drive.

Spare: Yes

Fault tolerance: can withstand the loss of any number of drives without losing data as long as at least one
complete member remains online. CLONE mode works the same way as RAID 1, by maintaining a complete copy
of the entire set of data on each drive..