Knowledge Base; What Is Raid - D-Link ShareCenter Pro DNS-1200-05 User Manual

Section 4 - Knowledge Base
RAID, short for Redundant Array of Independent Disks, is a combination of two or more disks with the aim of providing
fault tolerance and improving performance. There are several different levels of RAID, with each one providing a different
method of sharing or distributing data among the drives. The ShareCenter supports JBOD, RAID 0, RAID 1, RAID 5,
RAID 6 and Standalone.
RAID 0 provides data striping, which spreads
RAID 0
out blocks of data over all drives, but does not
provide data redundancy.
Although performance is improved, the lack of
fault tolerance means that if one drive fails, all
data in the array will be lost.
D-Link ShareCenter Pro 1200 User Manual

Knowledge Base

What is RAID?

RAID 1 provides mirroring over multiple disks, with
RAID 1
the same read/write speed of a single disk. A RAID
1 array can only be as large as it's smallest member
disk.
Because the data is stored on multiple disks,
RAID 1 provides fault tolerance and protection, in
addition to performance advantages.
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