Brocade Communications Systems 8 Command Reference Manual page 654

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portCfg
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-F |--ficon [0|1]
Enables (1) or disables (0) FICON emulation on the specified FCIP tunnel.
Optional FICON arguments for fciptunnel create allow you to control
specific features. Use the [0|1] value only with fciptunnel modify.
--ficon-xrc [0|1]
Enables (1) or disables (0) FICON XRC emulation. FICON XRC Emulation
allows XRC (IBM eXtendedRemote Copy, also known as IBM z/OS Global
Mirroring) to operate effectively at extended distances.
--ficon-tape-write [0|1]
Enables (1) or disables (0) FICON Tape Write Pipelining. This feature
improves the performance of certain applications when writing to tape
over extended distances.
--ficon-tape-read [0|1]
Enables (1) or disables (0) FICON Tape Read Pipelining. This feature
improves performance for certain applications when reading from FICON
tape over extended distances.
--ficon-tin-tir [0|1]
Enables (1) or disables (0) FICON TIN/TIR emulation. This feature
enhances recovery when a TIN/TIR exchange occurs as part of a channel
recovery operation during tape emulation.
--ficon-dvcack [0|1]
Enables (1) or disables (0) FICON Device Level Acknowledgement
emulation. This feature is applicable to both FICON Disk and Tape
configurations. The feature removes one network round trip for
exchanges that end with a Device Level Acknowledgement frame from
the device.
--ficon-read-blk [0|1]
Enables (1) or disables (0) FICON read Tape Read Block ID emulation.
This feature permits FICON write channel programs containing
embedded read block ID commands (CCWs) with a byte count of exactly
four bytes to be processed as emulated commands during write
emulation processes.
--max-read-pipe value
Defines the maximum number of tape read channel commands (CCWs)
that can enter the read pipeline for a single device whether all the CCWs
are bundled in a single channel program or in multiple channel
programs. The setting has significance only for host (channel) initiated
operations at this side and will not affect tape write operations initiated
by hosts (channels) attached at the opposite side. Too small of a value
will result in poor performance. The value should be chosen based upon
the typical tape channel program that requires optimum performance.
The default value is 32. The range is 1 to 100.
--max-write-pipe value
Defines the maximum number of tape write channel commands (CCWs)
that can enter the write pipeline for a single device whether all the CCWs
are bundled in a single channel program or in multiple channel
programs. The setting has significance only for host (channel) initiated
operations at this side and will not affect tape write operations initiated
Fabric OS Command Reference
53-1001764-02