Bull Cedoc NovaScale R440 E2, User Manual

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Configuring Your Server 4-49
Reconstruction
The reconstruction feature is used to change configuration and/or RAID level of existing virtual disks. The Reconstruction
offers the three following features, but the Internal RAID Controller supports "Migration with addition" only.
IMPORTANT: As the Universal RAID Utility does not support Reconstruction, use WebBIOS
for Reconstruction. .
Removed physical drive
Not supported.
Migration only
Not supported.
Migration with addition
Use this feature to add HDDs to an existing virtual disk. The execution patterns are as shown below ( α : Number of HDDs to
be added).
Before execution After execution
RAID
level Number of
HDDs RAID
level Number of
HDDs
Description
RAID0 x RAID0 x+
α
Capacity increased: equivalent to
α
HDDs
RAID0 1 RAID1 2 Capacity remains unchanged.
RAID0 x RAID5 x+
α
Capacity increased: equivalent to
α
-1 HDDs
RAID0 x RAID6
x+
α
(
α
=2 or more)
Capacity increased: equivalent to
α
-2 HDDs
RAID1 2 RAID0 2+
α
Capacity increased: equivalent to
α
+1 HDDs
RAID1 2 RAID5 2+
α
Capacity increased: equivalent to
α
HDDs
RAID1 2 RAID6 2+
α
Capacity increased: equivalent to
α
-1 HDDs
RAID5 x RAID0 x+
α
Capacity increased: equivalent to
α
+1 HDDs
RAID5 x RAID5 x+
α
Capacity increased: equivalent to
α
HDDs
RAID5 x RAID6 x+
α
Capacity increased: equivalent to
α
-1 HDDs
RAID6 x RAID0 x+
α
Capacity increased: equivalent to
α
+2 HDDs
RAID6 x RAID5 x+
α
Capacity increased: equivalent to
α
+1 HDDs
RAID6 x RAID6 x+
α
Capacity increased: equivalent to
α
HDDs