Removed Physical Drive; Migration Only; Migration With Addition - NEC Express5800/A1080a User Manual

Hardware
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 RAID Controller
(MegaRAID) supports "Migration with addition" only.

Removed physical drive

Unsupported.

Migration only

Unsupported.

Migration with addition

Use this feature to add HDDs to existing virtual disk. The execution patterns are as shown
below (: Number of HDDs to be added).
Before execution
RAID level
RAID0
RAID0
RAID0
RAID1
RAID1
RAID5
RAID5
IMPORTANT:
Use WebBIOS for Reconstruction. Universal RAID
Utility does not support Reconstruction.
After execution
Number of RAID level
HDDs
X RAID0
1 RAID1
X RAID5
2 RAID0
2 RAID5
X RAID0
X RAID5
Description
Number of
HDDs
X＋α
Capacity increased: equivalent to
HDDs
2
Capacity remains unchanged.
X＋α
Capacity increased: equivalent to
HDDs
2＋α
Capacity increased: equivalent to
HDDs
2＋α
Capacity increased: equivalent to
HDDs
X＋α
Capacity increased: equivalent to
HDDs
X＋α
Capacity increased: equivalent to
HDDs
344
α
α
-1
α
+1
α
α
+1
α