CHB number
8-Gbps, 16-Gbps, or 32-Gbps Fibre Channel ports (left to right)
Port 1 Port 2 Port 3 Port 4
CHB-1B 1B 3B 5B 7B
CHB-1C 1C 3C 5C 7C
CHB-1D 1D 3D 5D 7D
CHB-1E 1E 3E 5E 7E
CHB-1F 1F 3F 5F 7F
CHB-1G 1G 3G 5G 7G
CHB-1H 1H 3H 5H 7H
CHB-2A 2A 4A 6A 8A
CHB-2B 2B 4B 6B 8B
CHB-2C 2C 4C 6C 8C
CHB-2D 2D 4D 6D 8D
CHB-2E 2E 4E 6E 8E
CHB-2F 2F 4F 6F 8F
CHB-2G 2G 4G 6G 8G
CHB-2H 2H 4H 6H 8H
Back-end modules
The back-end modules (BEMs), also called disk boards (DKBs), control the transfer of data
between the drives and cache memory. The back-end module LEDs indicate the operating
status of the module.
Item Specification
Model number DKC-F910I-BN8G
Number of PCBs 1
Number of ports per PCB 4
Performance 8 Gbps
Data encryption Not supported
Back-end modules
Chapter 2: Hardware overview
Hitachi Virtual Storage Platform E990 Hardware Reference Guide 22
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