D-Link DNS-1200-05 Product Manual - Page 140

D-Link ShareCenter Pro 1200 User Manual, Knowledge Base, RAID 5

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Section 4 - Knowledge Base RAID 5: RAID 5 provides data striping with distributed parity, which stores information that can be used to reconstruct data. A RAID 5 array will be the size of all the combined disks capacity less the capacity of one disk, e.g. If there are 4x 80GB disks in the array, the arrays capacity will be 240GB (3x80GB). Implementing RAID 5 on the ShareCenter allows it to continue operating even if one of the disks fails. The diagram below indicates the operation of RAID 5: D-Link ShareCenter Pro 1200 User Manual 137

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137
D-Link ShareCenter Pro 1200 User Manual
Section 4 - Knowledge Base
RAID 5:
RAID.5.provides.data.striping.with.distributed.parity,.which.stores.information.that.can.be.used.to.reconstruct.data±.A.RAID.5.
array.will.be.the.size.of.all.the.combined.disks.capacity.less.the.capacity.of.one.disk,.e±g±.If.there.are.4x.80GB.disks.in.the.array,.
the.arrays.capacity.will.be.240GB.(3x80GB)±
Implementing.RAID.5.on.the.ShareCenter.allows.it.to.continue.operating.even.if.one.of.the.disks.fails±
The.diagram.below.indicates.the.operation.of.RAID.5: