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68 Chapter 1 Introduction to the Business Communications Manager Platform Hardware
P0993133 03
disk in the kit is the mirror disk. The information is written to both disks simultaneously. The dual
hard disk configuration provides RAID 1 fault tolerance capability.
The RAID card has three ribbon cable connectors. The hard disk connectors are mounted on the
right and left sides of the RAID controller card.
The third ribbon cable connection, mounted at the rear of the card, connects to the primary IDE
connector on the I/O card. Figure 34 illustrates the RAID components. For installation methods,
refer to Chapter 7, “Hard Disk Replacement Procedures’.
Figure 34 BCM200/400 2xHDD + RAID controller
Cooling Fan
Front view
Rear view
Power supply
connectors
RAID cage
Primary
Hard disk
Mirror Hard
disk
RAID card
status LEDs
Reset button
Primary hard disk
ribbon cable
connector (Mirror
Hard disk
connector on
opposite side)
RAID
controller
card
Hard disk
cage lift tab
Mirror hard disk
ribbon cable
connector
IDE
connector
Mirror hard
disk RAID
connector
Primary hard
disk RAID
connector
*Note: BCM200 lift tab is on
opposite end.
*Note: Reverse RAID cage
installation for BCM200