AlphaServer 8400
Alpha Servers 3.227
Optional Controller Configuration Table
With multiple adapters that provide the same interface available on different I/O buses (PCI or XMI), it is possible to
exceed operating system limit on number of ports supported for that interface. Follow these guidelines for maximum
number of ports that each operating system will support. Fill in table under the relevant area, add up the number of
controllers/ports available, and verify the operating system limits will not be exceeded. Do not exceed these values.
Option Name
A
Number
of
Ports/Buses
B
Number
of
Options
C
Total
Ports
(A * B)
DIGITAL
UNIX
Limit
OpenVMS
Limit
SCSI Options
Included KFTIA-AA I/O module, one single-ended and three FWD
SCSI ports*
4
1
4
Additional KFTIA-AA I/O module, one single-ended and three
FWD SCSI ports
4
KZPSA-BB PCI fast wide differential SCSI adapter
1
KZMSA-AB XMI fast single-ended SCSI adapter
2
Add column “C”—must be less than or equal to value listed under
operating system to be used.
32
26
802.3/Ethernet Options
Included KFTIA-AA I/O module, two 802.3/Ethernet ports*
2
1
2
Additional KFTIA-AA I/O module, two 802.3/Ethernet ports
2
DE435-AA PCI 802.3/Ethernet controller, DE450, DE500
1
DEMNA-M XMI 802.3/Ethernet controller
1
Add column “C”—must be less than or equal to value listed under
operating system to be used.
8
8
FDDI Options
Included KFTIA-AA I/O module, optional FDDI daughter card
installed (DEFPZ-AA/UA)*
1
Additional KFTIA-AA I/O module, optional FDDI daughter card
installed (DEFPZ-AA/UA)
1
DEFPA-AB/-DB/-UB/MB PCI FDDI controller, one port each
1
DEMFA-AA XMI FDDI controller
1
Add column “C”—must be less than or equal to value listed under
operating system to be used.
8
8
EISA Bus IRQ Address Table
Configuration Rules and Information
EISA Bus IRQ address assignments are for DIGITAL UNIX and OpenVMS systems only.
In some cases, the maximum number of each supported device is less than the number of EISA bus addresses available;
this is due to other limitations.
Only one device can occupy any given IRQ address; if multiples of a device are configured, each device occupies
separate address.
Match each device to one available address. (Note: With the table as a worksheet, fill in “0” for each device; fill in only
one “0” per column.)
Actual IRQ address assignment will be made by the EISA Configuration Utility (ECU), which is run during system
manufacture, or in the installed system if the EISA bus is reconfigured.
EISA Bus IRQ Addresses
Maximum of Each Supported
Option
5
7
8
9
10
11
12
14
15
OpenVMS
DIGITAL UNIX
DNSES-AA
–
–
0
0
0
0
0
0
0
1
2
DW300-AA
0
–
–
0
0
0
–
–
0
1
1
CXI01-AA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1
1
CXI01-AD
NA
NA
NA
NA
NA
NA
NA
NA
NA
1
1
Table Codes:
0 = address is available for device,
– = address not available for device
NA = Not Applicable
