HP-UX Reference (11i v2 03/08) - 1M System Administration Commands N-Z (vol 4)

s
scsictl(1M) scsictl(1M)
operations on the device.
-m mode Display the status of the specified mode parameter. mode can be one of the following:
immediate_report
For devices that support immediate reporting, this mode con-
trols how the device responds to write requests. If immediate
report is enabled (
1), write requests can be acknowledged
before the data is physically transferred to the media. If
immediate report is disabled (0), the device is forced to await
the completion of any write request before reporting its status.
ir Equivalent to immediate_report
.
queue_depth For devices that support a queue depth greater than the system
default, this mode controls how many I/Os the driver will
attempt to queue to the device at any one time. Valid values
are (1−255). Some disk devices will not support the maximum
queue depth settable by this command. Setting the queue
depth in software to a value larger than the disk can handle
will result in I/Os being held off once a QUEUE FULL condi-
tion exists on the disk.
-m mode=value
Set the mode parameter mode to value. The available mode parameters and values are
listed above.
Mode parameters that take only a binary value (
1 or 0) can also be specified as either
on
or off, respectively.
-o command
Currently this option supports only the following command:
ola_params This command should be followed by five arguments namely,
hw_path, scsi_id , width, period, and offset. Actual values of
scsi_id, width, period and offset are decided by the hardware.
If the hardware is not capable of supporting the requested
values, they will be brought to the maximum capability of the
card. A value of -1 may be specified for scsi_id , width, period
and offset in order to use the hardware default values.
Note: This command does not validate any of the arguments
passed. Therefore, it does not show any output upon successful
completion.
-q Suppress the labels that are normally printed when mode parameters are displayed.
Mode parameter values are printed in the same order as they appear on the command
line, separated by semicolon-blank (
; ) or newline.
-p pr_clear key device
The scsictl command with the -p pr_clear option can be used to clear the per-
sistent reservation from a device. This command can not be used with any other options
or commands available for the scsictl command.
This command should be followed by two arguments: key and device. key is a string of
characters which was used while setting persistent reservation. This key can be in any of
the following two formats:
(a) Text format: can contain any of alphanumeric characters. In this format length of
the key should not exceed 8 characters.
(b) Hex format: preceded by 0x or 0X, can contain any of hexadecimal digit. In this for-
mat length of the string should not exceed 18 characters in total (including 0x or 0X).
Mode parameters and commands need only be specified up to a unique prefix. When abbreviating a mode
parameter or command, at least the first three characters must be supplied.
DIAGNOSTICS
Diagnostic messages are generally self-explanatory.
HP-UX 11i Version 2: August 2003 − 2 − Hewlett-Packard Company Section 1M−−727