User`s guide

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