
RAIDWatch User’s Manual
Mode 2 Expansion, on the other hand, requires the same number of
higher-capacity hard disk drives for a given logical drive.
Figure 9-10: RAID Expansion Mode 2 (1/3)
Figure 9-10 above illustrates expansion of the same 4GB RAID 5 logical
drive using Mode 2 Expansion. Drives are copied and replaced, one by
one, onto three higher-capacity drives.
RAID Expansion - Mode 2
(2/3)
2
Copy and Replace the other member drives one by one
until all the member drives have been replaced
4 GB
New
Drive
2 GB
RAID 5 (4GB)
2 GB 4 GB
In use
Unused
Copy and Replace each member drive. After all the
member drives have been replaced, execute the
“RAID Expansion” to use the additional capacity.
Figure 9-11: RAID Expansion Mode 2 (2/3)
This results in a new 4GB, RAID 5 logical drive composed of three
physical drives. The 4GB of increased capacity is in a new partition.
9-14 Logical Drive Management
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