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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 disk
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 HDDs 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 fibre 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