IBM 2104 Model DU3 User Manual
Page 62
One Adapter in Each of Two Using Systems Connected to One
2104 Model DU3
1
SCSI interface card
2
For HACMP configurations in standby or mutual takeover mode:
v
PCI Dual-Channel Ultra2 SCSI Adapter (type 4-R, feature 6205)
The two adapters must not be in the same using system.
v
PCI Dual-Channel Ultra3 SCSI Adapter (type 4-Y, feature 6203)
The two adapters must not be in the same using system.
Note:
For non-HACMP configurations:
v
PCI Dual-Channel Ultra2 SCSI Adapter (type 4-R, feature 6205)
v
PCI Dual-Channel Ultra3 SCSI Adapter (type 4-Y, feature 6203)
v
Ultra2 SCSI Integrated Port
Note: In non-HACMP configurations, connections can be made to two separate
using systems, or to the same using system. Connection can be to an Ultra2 SCSI
integrated port or to an Ultra2 SCSI connector on the SCSI adapters listed. Access
to the disks in the 2104 cannot be shared.
Attention: This 2104 configuration is not supported on the Linux operating system.
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
Maximum of 12
disk drive modules
1
1
Using System
2
Using System
2
Figure 32. One Adapter in Each of Two Using Systems Connected to One 2104 Model DU3
(Single-Bus Mode)
46
2104 Model DU3 Installation Guide
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