HP StorageWorks 2300 Disk System - Manual (Page 89)

Configuration 89
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Note In split bus mode, the enclosure monitor circuitry on each BCC
utilizes SCSI address 15. This is allowable since each BCC is
connected to a separate SCSI bus. However, when the enclosure
configuration is in Full Bus mode, and the separate SCSI busses on
the midplane are connected together and there are two BCCs in the
enclosure, the secondary BCC does not connect to the SCSI bus.
Disk Slots and Addressing
The disk system has 14 available disk slots, SCSI addressing
does not follow a “1-to-1” relationship between slot positions
and SCSI addresses. Slot assignments and SCSI addresses are
shown in Figure 49.
In full bus mode, the SCSI address 7 is reserved for the host bus adapter. If more
than one host bus adapter connects the disk system to other hosts, then a disk
module must be removed from the slot whose SCSI address corresponds to the
SCSI address of the additional host bus adapter. The most host bus adapters
supported on this disk system is two.
In split bus mode, the loading sequence is from slot 1 to the right to slot 7 and
from slot 8 to the right to slot 14.
In full bus mode, begin loading the disk modules in slot 1 and continue installing
disk modules toward the right.