Brocade FICON Administrator’s Guide (Supporting Fabric OS v7.3.0) - Manual (Page 70)

Tape Write Pipelining
FICON Tape Write Pipelining improves performance for a variety of applications when writing to tape
over extended distances. FICON Tape Write Pipelining locally acknowledges write data records,
enabling the host to generate more records while previous records are in transit across the IP WAN. If
an exception status is received from the device, the writing of data and emulation is terminated.
FIGURE 18 Tape Write Pipelining
Tape Read Pipelining
FICON Tape Read Pipelining improves performance for certain applications when reading from
FICON tape over extended distances. FICON Tape Read Pipelining reads data on the tape directly
from the tape device. Reading of the tape continues until a threshold is reached. The buffered data is
forwarded to the host in response to requests from the host. When the host sends the status accept
frame indicating that the data was delivered, the read processing on the device side credits the
Tape Write Pipelining
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