Table 2–2: AlphaServer Systems Supported for Fibre Channel
AlphaServer
KGPSA-BC or KGPSA-CA
(Fabric)
KGPSA-CA (Arbitrated
Loop)
AS800
2
–
AS1200
4
–
AS4x00
4
–
AS8x00
ab
32
–
DS10
c
2
2
DS20, DS20E
4
2
ES40
4
2
GS60
ab
, GS60E
ab
32
–
GS140
ab
32
–
a The KGPSA PCI-to-Fibre Channel adapter is only supported on the DWLPB PCIA option; it is not
supported on the DWLPA.
b Two KGPSA host bus adapters are supported per DWLPB.
c The DS10 is only supported in a TruCluster Available Server Software Version 1.6 configuration. It is not
supported with TruCluster Production Server Software Version 1.6.
The following requirements and restrictions apply to the use of Fibre
Channel with the TruCluster Software Products:
•
The root (
/
) and swap filesystems are not supported on Fibre Channel
storage.
•
A maximum of four member systems is supported in fabric configurations.
A maximum of two member systems is supported in arbitrated loop
configurations.
•
The only supported Fibre Channel adapters are the KGPSA-BC and
KGPSA-CA PCI-to-optical Fibre Channel host bus adapters. The
KGPSA-BC adapter is supported in fabric configurations only; the
KGPSA-CA adapter is supported in both fabric and arbitrated loop
configurations.
•
A host is only allowed to have one KGPSA connected to each switch,
switch zone, or hub.
•
The TruCluster Software Products support a fabric configuration of up to
three cascaded switches with a maximum of two hops between switches.
The maximum hop length is 10 km longwave single-mode or 500 meters
shortwave multimode Fibre Channel cable.
•
The TruCluster Software Products support only single-hub arbitrated
loop configurations; that is, there are no cascaded hubs on the same
SCSI bus.
2–2 Fibre Channel Hardware, Requirements, and Restrictions
