Dell OpenManage Server Administrator Version 7.2 Manual do Utilizador Página 43

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Understanding RAID Concepts 43
Figure 3-6. RAID 50
RAID 50 Characteristics:
Groups
n
*
s
disks as one large virtual disk with a capacity of
s
*(
n
-1) disks,
where
s
is the number of spans and
n
is the number of disks within each
span.
Redundant information (parity) is alternately stored on all disks of each
RAID 5 span.
Better read performance, but slower write performance.
Requires as much parity information as standard RAID 5.
Data is striped across all spans. RAID 50 is more expensive in terms of disk
space.
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