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One adapter in each of two host systems connected to two 2104
Model DS4s
Figure 48 shows one adapter in each of two host systems connected to two 2104
Model DS4s (single-bus mode).
1
1
Maximum of 12
disk drive modules
2104 Subsystem
1
1
Maximum of 12
disk drive modules
2104 Subsystem
Figure 48. One adapter in each of two host systems connected to two 2104 Model DS4s
(single-bus mode)
1
SCSI interface card.
2
For HACMP configurations in standby and mutual takeover mode:
v PCI Dual-Channel Ultra3 SCSI Adapter (type number 4-Y, feature code 6203)
Note: The adapters must be in two separate host systems.
v PCI-X Dual Channel Ultra320 SCSI adapter (type number 5702, feature code
5712)
For non-HACMP configurations, the connections can be to either two different host
systems or to the same host system, but disk drive modules must not be shared:
v PCI Dual-Channel Ultra3 SCSI Adapter (type number 4-Y, feature code 6203)
v Ultra2 SCSI Integrated port
v PCI-X Dual Channel Ultra320 SCSI adapter (type number 5702, feature code
5712)
Important: The 2104 Model DS4 configuration is not supported on the Linux
operating system.
Note: The SCSI address of the adapter that is connected to the 2104 Model DS4
must be different from the addresses of the installed disk drive modules.
When a second adapter is connected to a 2104 Model DS4, the SCSI
address of that adapter must be different from the address of the first
adapter and the addresses of the disk drive modules installed in the 2104
Model DS4.
In each 2104 Model DS4, slots 6 and 7 (SCSI addresses 5 and 6) must
contain dummy disk drive modules. Each 2104 Model DS4 can contain no
more than 12 disk drive modules.
2
Host System
2
Host System
Appendix B. Cable configurations
41
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