Fibre Channel cables
When constructing a system with the direct connection or Fibre Channel
switch connection, consider the following:
• If you connect a storage system to a FC host adapter through a switch, set
Fabric = ON and set to Point-to-Point.
• If you connect a storage system directly to FC host adapter with the
following fabric topology:
○ For 2, 4 or 8 Gbps, set the storage port to
Fabric = OFF and Connection
Type FC-AL (Fibre Channel Arbitrated Loop).
○ For 16 or 32 Gbps, set the storage port to Fabric = OFF and Connection
Type P-to-P (Point-to-Point).
For the 8-Gbps Fibre Channel ports, the combinations between data-
transfer speeds and connection types are as follows:
Connection type
Data transfer speeds for 8-Gbps ports
2 Gbps 4 Gbps 8 Gbps Auto
FC-AL Available Available Available Available
(default)
P-to-P Available Available Available Available
Fabric Available Available Available Available
For the 16-Gbps Fibre Channel ports and for 16-Gbps SFP added to the 4-
port FC 32-Gbps package, the combinations between data-transfer speeds
and connection types are as follows:
Connectio
n type
Data transfer speeds for 16-Gbps ports/SFPs
2 Gbps 4 Gbps 8 Gbps 16 Gbps 32 Gbps Auto
FC-AL No
available
Available Available Not
available
Not available Available
1
P-to-P No
available
Available Available Available Not available Available
(default
2
)
Fabric Available Available Available Available Not available Available
Notes:
1. If this combination is specified, the maximum transfer speed automatically specified is 8
Gbps.
2. If this default value is set, Fabric is set to ON automatically.
Note: To connect to the server by the 16-Gbps direct connection,
the Fabric Emulation function of the Hitachi host adapter is required.
90 Data and power cables
Hitachi Virtual Storage Platform G400, G600 Hardware Reference Guide
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