Hitachi Universal Storage Platform V - 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 Por
t
BED Pair
Fibre Loop
Max. 64 drives per FCAL
62 63 00 01
62 63 00 01
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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