Hitachi Universal Storage Platform VM - Manual (Page 36)

2-10 Architecture and Components
Hitachi Universal Storage Platform V/VM User and Reference Guide
Figure 2-3 illustrates a conceptual array domain. All functions, paths, and data
drives controlled by one BED pair are called an “array domain.” An array
domain can contain a variety of LVI and/or LU configurations. RAID-level
intermix (all RAID types) is allowed within an array domain (under a BED pair)
but not within an array group.
62 63 00 01
62 63 00 01
62 63 00 01
62 63 00 01
Fibre Port
BED Pair
Fibre Loop
Max. 64 drives per FCAL
62 63 00 01
62 63 00 01
62 63 00 01
62 63 00 01
BED
(CL1)
0
1
2
3
4
5
6
7
BED
(CL2)
0
1
2
3
4
5
6
7
RAID group (3D+1P / 2D+2D) *1
*1: A RAID group (3D+1P/2D+2D) consists of fibr e port number 0, 2, 4, and 6, or 1, 3, 5 and 7.
RAID group (7D+1P / 4D+4D)
Fibre Port Number
Figure 2-3 Conceptual Array Domain