Seagate ST800FM0012 Pulsar.2 SAS Product Manual - Page 60
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12.2 Dual port support Pulsar.2 SAS drives have two independent ports. These ports may be connected in the same or different SCSI domains. Each drive port has a unique SAS address. The two ports have the capability of independent port clocking (e.g. both ports can run at 6Gb/s or the first port can run at 6Gb/s while the second port runs at 3Gb/s.) The supported link rates are 1.5, 3.0, or 6.0 Gb/s. Subject to buffer availability, the Pulsar.2 drives support: • Concurrent port transfers-The drive supports receiving COMMAND, TASK management transfers on both ports at the same time. • Full duplex-The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving frames on both ports. 52 Pulsar.2 SAS Product Manual, Rev. B
52
Pulsar.2 SAS Product Manual, Rev. B
12.2
Dual port support
Pulsar.2 SAS drives have two independent ports. These ports may be connected in the same or different SCSI
domains. Each drive port has a unique SAS address.
The two ports have the capability of independent port clocking (e.g. both ports can run at 6Gb/s or the first port
can run at 6Gb/s while the second port runs at 3Gb/s.) The supported link rates are 1.5, 3.0, or 6.0 Gb/s.
Subject to buffer availability, the Pulsar.2 drives support:
•
Concurrent port transfers—The drive supports receiving COMMAND, TASK management transfers on both
ports at the same time.
• Full duplex—The drive supports sending XFER_RDY, DATA and RESPONSE transfers while receiving
frames on both ports.