Product data

One Adapter in Each of Two Using Systems Connected to Two
2104s (Model DU3 or TU3)
1 SCSI interface card assembly
2 For HACMP configurations in standby and mutual takeover mode:
v PCI Dual Channel Ultra2 SCSI Adapter (type 4-R, feature 6205)
The adapters must be in two separate using systems.
For non-HACMP configurations:
v PCI Dual Channel Ultra2 SCSI Adapter (type 4-R, feature 6205)
v Ultra2 SCSI Integrated Port
Note: In non-HACMP configurations, the connections can be made to two separate
using systems, or to the same using system, but the disk drive modules that are in the
2104s must not be shared.
Attention:
v The SCSI address of the adapter that is connected to the 2104 must be different
from the addresses of the installed disk drive modules. When a second adapter is
connected to a 2104, the SCSI address of that adapter must be different from the
address of the first adapter and the addresses of the installed disk drive modules.
v In each 2104, slots 6 and 7 (SCSI addresses 5 and 6) must contain dummy disk
drive modules.
v Each 2104 can contain no more than 12 disk drive modules.
2104 Subsystem
11
11
2104 Subsystem
Using System
2
Using System
2
Maximum of 12
disk drive modules
Maximum of 12
disk drive modules
Figure 63. One Adapter in Each of Two Using Systems Connected to Two 2104s
(Single-Bus Mode)
Appendix B. Cable Configurations 147
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