Avago Technologies LSI SAS 3041E-R - Manual (Page 86)

4-8 NetWare Drivers
Version 1.3 Copyright © 2001, 2002, 2007 by LSI Logic Corporation. All rights reserved.
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Default value: 32
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Valid entries: 0–250 (0 = disable)
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Function: Specifies the maximum number of I/Os that the HAM
queues before allowing NWPA to filter and organize requests.
NWPA uses elevator queues to determine how many I/Os are queued to
the HAM before organizing requests and generating scatter gather lists.
If this number is set too low, adapter I/O starvation can result. If the
number is too high, I/Os may not be sorted and/or scatter gather lists
may not be generated. Varying the elevator threshold value affects
performance.
4.3.2.2 Using the Handles Option
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Syntax: handles=[targetIDlist] or
handle =[targetIDlist] or
hdl=[targetIDlist]
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Default value: 144 handles
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Valid entries: Number of handles
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Function: Defines the maximum number of bus/device/target
handles.
For larger configurations, increase this value to the total number of
bus/target/device(s) in a system.
4.3.2.3 Using the Minimum Timeout Option
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Syntax: mintimeout=[targetIDlist] or
mint=[targetIDlist]
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Default value: 0 (0 = no timeout)
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Valid entries: 0–1200
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Function: Specifies the minimum device timeout, in seconds.
This option uses a timeout mechanism to support particularly slow
devices. When a driver issues a command to a SCSI device, a timer is
started. If the timer expires before the command completes, the driver
assumes something has gone wrong and takes steps to recover. The
minimum setting is 0, which is no timeout.