Technical data

Acer | HDS AMS200 User and Reference Guide 297
Appendix D Interfaces
Fibre Channel (Non-OFC) and Ethernet connections are used for Interface with the host
computer. The AMS200 provides a Fibre Channel interface with the control unit as standard.
The NAS unit and iSCSI interface provides an Ethernet interface as standard.
D.1 Fibre Channel Connection Specifications
D.1.1 System Configuration
Connecting the host computer and the AMS200 through the FC-SW enables you to configure a
system that is logically connected with more devices than the combined number of ports.
However, the maximum number of I/O processing ports for the host computer and TrueCopy
remote replication is 128.
When constructing a system with the FC-AL or AC-SW:
 If you use the least Fibre Channel devices connected with a Fibre Channel loop, you will
have superior higher performance.
 Since high-speed serial data transfer is performed via Fibre Channel, use high-quality
Fibre Channel cables which conform to the FC-PH standard.
(a) Point to Point Connection
Distance between ports (Cable length)
Optical: 300 m (max.)
: Port
T
x
R
x
Tx
R
x
T
x
R
x
Host adapter
A
MS200
(b) FC-AL connection
Tx
Rx Tx
Rx
Tx
R
x
T
x
R
x
Tx
Rx Tx
Rx
Tx
R
x
T
x
R
x
Tx
Rx Tx
Rx
Tx
R
x
T
x
R
x
Host adapter #1
Host adapter #m
Host adapter #0
SW configuration
A
MS200 #0
A
MS200 #1
A
MS200 #m
Figure D.1 Fibre Channel Connection Specifications