Ficon Performance Statistics - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

• -t 1|0 enables or disables TIN/TUR emulation. 1 is enable, O is disable.This option should be enabled
when one or all of the following features are enabled:
• XRC emulation.
• tape write pipelining.
• tape read pipelining.
• -l 1|0 enables or disables device level ACK emulation. 1 is enable, O is disable. This option should be
enabled when one or all of the following features are enabled:
• XRC emulation.
• tape write pipelining.
• tape read pipelining.
• -b 1|0Enables or disables FICON read block ID. 1 is enable, O is disable.
The following parameters may be modified on active tunnels.
• wrtMaxPipe
given time during write pipelining. Too small of a value will result in poor performance. The value
should be chosen carefully based upon the typical tape channel program that requires optimum
performance. The default value is 32. the range is 1- 1 00.
value
• rdMaxPipe
time during read pipelining. Too small of a value will result in poor performance. The value should be
chosen carefully based upon the typical tape channel program that requires optimum performance. The
default value is 32. The range is 1- 1 00.
• wrtMaxDevs
default value is 16.The range is 1-32.
• rdMaxDevs
value is 16. The range is 1-32.
value
• wrtTimer
(ms). If a pipelined write chain takes longer than this value to complete, the ending status for the next
write chain will be withheld from the channel. This limits processing to what the network and device
can support. Too small a value limits pipelining performance. Too large a value results in too much
data being accepted for one device on a path. The default value is 300 milliseconds (ms). The range is
100- 1 500.
• wrtMaxChains
chain. If this value is exceeded, emulation is suspended.
value
• oxidBase
exchanges. It should fall outside the range used by FICON channels and devices to avoid conflicts. The
default value is 0x1000. The range is 0x0000 to 0xF000.
The following options are for debugging, and are primarily for technical support personnel:
value
• dbgFlags
The default is 0xF7C80000.
• LrcCheck 1|0 enables or disables Transport Lrc Hdr Check. 1 is enable, 0 is disable.

FICON performance statistics

You can use the portshow ficon command to view the performance statistics and monitor the behavior
of FICON emulation. The syntax is as follows:
portShow ficon [Slot/]ge0|ge1 all|tunnel_id [arguments]
where:
• slot is the slot number of a blade in a multi-slot chassis. Does not apply to the MP 400 Router.
• ge0|ge1 is the Ethernet port (ge0 or ge1).
• tunnel_id is the tunnel number (0-7).
The arguments are as follows:
• -globals are general FICON Controls/Statistics.
446 Configuring and monitoring FICON Extension Services
value
defines a maximum number of channel commands that may be outstanding at a
defines a maximum number of channel commands that may be outstanding at a given
value
defines a maximum number of concurrent emulated tape write operations. The
value
defines a maximum number of concurrent emulated tape read operations. The default
defines a time limit for pipelined write chains. This value is be specified in milliseconds
value
defines the maximum amount of data that can be contained in a single CCW
defines the base value of an entry pool of 256 OXIDs supplied to emulation generated
defines optional debug flags. This is primarily for use by technical support personnel.