FLASHPT.ADD

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FLASHPT.ADD

Buslogic Flashpoint SCSI host adapter driver.

BASEDEV=FLASHPT.ADD <parameters>

Parameter

/V
Verbose switch. This switch enables driver verbosity at initialization time.
/QU
Warning-error suppression switch. When invoked, the driver will not complain about references to non-existent targets/LUNs specified on the BusLogic ADD driver command line.
/O
Early Opti chipset work-around switch. This switch provides a work-around for an early version of the Opti PCI chipset which can generate spurious interrupts. Do not use this option unless your system hangs at boot-time and you are using an Opti chipset.
/SH
Allow sharing of IRQ across different host adapter families. This option is not necessary when sharing an IRQ within the FlashPoint product family. A side-effect of using this switch is less responsive mouse and keyboard event recognition during heavy I/O.
/A
x
Adapter identification switch. x is between 0 and 5 and identifies the adapter being referenced. This switch is followed by one or more of the switches below.
/DM
xx
DASD Manager Support switch. As defined by IBM, this switch enables/disables support for this unit by the IBM-supplied DASD Manager (OS2DASD.DMD).
/SM
xx
SCSI Manager Support switch. As defined by IBM, this switch enables/disables support for this unit by the IBM-supplied SCSI Manager (OS2SCSI.DMD).
/TQ
Enable tagged queuing support on ALL targets on the specified host adapter (specified by the receding /A: switch) that supports tagged queuing.
NOTE Tagged queuing is an advanced SCSI-II feature that allows overlapped commands to a SCSI device, resulting in enhanced performance. While BusLogic provides support for this important SCSI-II feature, not all SCSI devices support tagged queuing. The SCSI device must support tagged queuing to take advantage of this feature.
BusLogic's OS/2 SCSI Adapter Driver defaults to tagged queuing DISABLED on all devices. For devices that support tagged queuing, the following command line switches are provided to manage tagged queuing support on a finer device-specific level.
/TQ
x,y,z,...
Enable tagged queuing support on a specified list of SCSI targets. x,y,and z is a list of embedded SCSI targets separated by commas. The Logical Unit Number (LUN) is presumed to be 0.
/TQ
(a,b), (c,d), ...
Enable tagged queuing support on a specified list of pairs of SCSI targets/LUNs in parenthesies. Each parenthesized pair is separated by commas.
/LUNS
xx
This switch specifies the maximum number of Logical Units (LUNs) the host adapter will support (try to detect). If the switch is not specified, the default is 8. Valid range is from 1 to 32. If the host adapter only has embedded SCSI targets attached (that is, all attached devices are at LUN 0), it is recommended to set this option value to 1 to turn off LUN support for LUNs other than 0.
/TO
xx
Command Timeout switch. This per-host adapter switch specifies a timeout on each I/O request in seconds. It takes a decimal digit input between 1 and 99. The driver default is 15 seconds in this absence of this switch. Setting the timeout value to 0 turns off the timeout mechanism.
NOTE This switch has no effect on tape requests.
/MR
xx
Maximum Request switch. This per-host adapter switch specifies the maximum number of requests that can be pending on the host adapter. Valid range is 1 - 64. Default is 16.
/MA
xx
Maximum Active switch. This per-host adapter switch specifies the maximum number of active requests that can be outstanding on each device on the host adapter. Valid range is 1 - . Default is 8. This value can be adjusted to increase performance.
Platform Support:
OS/2 2.x OS/2 3.0 OS/2 4.0 OS/2 4.5x
Yes Yes Yes Yes