Red Hat Server tc3100 User's Guide download pdf (Page 89)

Configuration 89

Configuration

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.

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 157 158

No comments

Red Hat Server tc3100 User's Guide Page 89