Specifications

Host Limitations
See Table 12 for a description of the LUN assignments for the iSeries host system.
Table 12. Host system limitations for the iSeries host system
Host system
LUN limitation
assignments per
target Configuration notes
IBM iSeries (fibre-channel). See
note.
0 - 32 There is one target per iSeries
adapter.
Note: The naming convention for the iSeries describes Models 270 and 8xx. These models
attach through a fibre-channel adapter 2766.
Recommended configurations
IBM recommends the following configurations:
v Install feature code 2766, which is an I/O adapter card, in the iSeries system unit
or the high speed link (HSL) PCI I/O towers.
v Only one 2766 adapter is supported per I/O processor (IOP) and requires a
dedicated IOP. No other I/O adapters are supported under the same IOP.
v Only two 2766 adapters are supported per a multi-adapter bridge.
Note: You can get the 2766 adapter card through RPQ 847126.
Figure 32 on page 51 shows an example of the display for the hardware service
manager (HSM) logical hardware resources associated with the IOP.
Description........................: Multiple Function IOA
Type-Model.........................: 2766-001
Status.............................: Operational
Serial number......................: 10-22036
Part number........................: 0000003N2454
Resource name......................: DC18
Port worldwide name................: 10000000C922D223
PCI bus............................:
System bus.......................: 35
System board.....................: 0
System card......................: 32
Storage............................:
I/O adapter......................: 6
I/O bus..........................:
Controller.......................:
Device...........................:
Figure 31. Example of the display for the auxiliary storage hardware resource detail for the
2766 adapter card
50 ESS Host Systems Attachment Guide
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