HP Surestore Disk Array 12h System Administrator's Guide for HP-UX, MPE, and W - Page 266

Maximum Queue Full

Page 266 highlights

Using the ARM Command Line Utilities for Windows NT Viewing the Disk Array General Configuration Settings Parameter Default Setting Description Disable Remote Reset ENABLED Controls the bus reset behavior of the second controller when a SCSI reset (reset signal, BDR or Reset Disk array command) is received in the first controller. When this bit is disabled, the second controller will assert the bus reset signal to indicate that all outstanding requests were cleared in response to the reset. When this bit is enabled, the second controller will not assert the SCSI reset signal to indicate the commands were cleared. Hosts that cannot tolerate target bus resets should enable this setting. Secondary Controller DISABLED Controls the behavior of the secondary controller with Offline respect to bus selection. When disabled, any secondary controller present will respond to host selection. When enabled, the secondary controller will remain off-line until a failure of the primary controller is detected (at which point it becomes primary). Only the primary controller will go on-line. Very Early Busy DISABLED Controls the behavior of the disk array with respect to SCSI bus selection during the early stages of the initialization sequence (i.e., from about three seconds after reset until about fifteen seconds prior to initialization completion). When disabled, the disk array will ignore SCSI bus selection until the late stages of initialization. When enabled, the disk array will accept selection during early initialization and will return BUSY status until the late stages of initialization. Queue Full Threshold 1952 Specifies the target queue depth beyond which the disk array will return QUEUE FULL status to subsequent host requests. Maximum Queue Full Threshold 1952 Specifies the maximum supported value for the Queue Full Threshold parameter. Attempts to set the QFT parameter to values higher than the MQFT will fail with CHECK CONDITION status and ILLEGAL REQUEST, INVALID FIELD IN PARAMETER LIST sense indications. Simplified Resiliency Setting Normal Determines the values of the following eight parameters. This field regulates the mode of data resiliency that the disk array will operate in. The "Normal" mode is set at the factory when dual controllers are ordered with the array. Windows NT 266

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Using the ARM Command Line Utilities for Windows NT
Viewing the Disk Array General Configuration Settings
266
Windows NT
Parameter
Default
Setting
Description
Disable Remote Reset ENABLED Controls the bus reset behavior of the second controller
when a SCSI reset (reset signal, BDR or Reset Disk array
command) is received in the first controller. When this bit
is disabled, the second controller will assert the bus reset
signal to indicate that all outstanding requests were
cleared in response to the reset. When this bit is enabled,
the second controller will not assert the SCSI reset signal
to indicate the commands were cleared. Hosts that
cannot tolerate target bus resets should enable this
setting.
Secondary Controller
Offline
DISABLED Controls the behavior of the secondary controller with
respect to bus selection. When disabled, any secondary
controller present will respond to host selection. When
enabled, the secondary controller will remain off-line until
a failure of the primary controller is detected (at which
point it becomes primary). Only the primary controller will
go on-line.
Very Early Busy
DISABLED Controls the behavior of the disk array with respect to
SCSI bus selection during the early stages of the
initialization sequence (i.e., from about three seconds
after reset until about fifteen seconds prior to initialization
completion). When disabled, the disk array will ignore
SCSI bus selection until the late stages of initialization.
When enabled, the disk array will accept selection during
early initialization and will return BUSY status until the late
stages of initialization.
Queue Full Threshold
1952
Specifies the target queue depth beyond which the disk
array will return QUEUE FULL status to subsequent host
requests.
Maximum Queue Full
Threshold
1952
Specifies the maximum supported value for the Queue
Full Threshold parameter. Attempts to set the QFT
parameter to values higher than the MQFT will fail with
CHECK CONDITION status and ILLEGAL REQUEST,
INVALID FIELD IN PARAMETER LIST sense indications.
Simplified Resiliency
Setting
Normal
Determines the values of the following eight parameters.
This field regulates the mode of data resiliency that the
disk array will operate in. The “Normal” mode is set at the
factory when dual controllers are ordered with the array.