56
Savvio 10K.5 FC Product Manual, Rev. D
10.1.10
Fibre Channel Arbitrated Loop options
Table 16 lists the FC-AL options supported by Savvio 10K.5 FC drives.
10.2
Dual port support
Savvio 10K.5 FC drives have two independent FC-AL ports. These ports may be connected on independent
loops or on the same loop. Port A and Port B may be connected in any order or combination.
• If both ports are connected on independent loops and hard addressing is used, the drive interface address is
selected through the interface connector, both ports will seek the same loop address. If no conflict, both
ports will have the same loop address.
• If both ports are connected in the same loop and hard addressing is used, at least one port will attempt tak-
ing a soft address to prevent an address conflict.
Subject to buffer availability, the Savvio 10K.5 FC drives support:
• Concurrent port transfers—The drive supports receiving transfers on both ports at the same time when the
ports are on independent loops.
• Full duplex—The drive supports sending FCP_Data, FCP_RSP, FCP_XFR_RDY and ELS transfers while
receiving frames on both ports.
Table 16:
FC-AL options supported
Option
Supported
OPEN Half Duplex
Accepted from another device.
OPEN Full Duplex
Sent to open another device. Accepted from another device.
Private Loop
Yes
Public Loop
Yes
Old Port State
No
Loop Position
Yes
Loop Position Report
Yes
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