User`s guide

4-26
Reconstruction
The reconstruction feature is used to change configuration and/or RAID level of existing virtual disk. The
Reconstruction contains the following three features, however, the Internal RAID Controller only supports "Migration
with addition".
IMPORTANT: You can use WebBIOS for Reconstruction. The Universal RAID Utility
does not support Reconstruction.
Removed physical drive
Unsupported.
Migration only
Unsupported.
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