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Oracle Tips by Burleson |
Disk I/O Tuning
Chapter 3:
HP-UX SCSI Tuning
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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)
and can also be specified as either
on
or off,
respectively. |
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-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. |
Table 3-3: The scsictl Command Options
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.
To
display all the mode parameters, turn immediate_report on,
and redisplay the value of immediate_report:
scsictl -a -m ir=1 -m ir /dev/rdsk/c0t6d0
producing the following output:
immediate_report = 0; queue_depth = 8;
immediate_report = 1
To
get the same output using the suppression of labels, the command
would look like so:
scsictl -aq -m ir=1 -m ir /dev/rdsk/c0t6d0
producing the following output:
The above text is
an excerpt from:
Oracle Disk I/O Tuning
Disk IO Performance & Optimization for Oracle
Databases
ISBN
0-9745993-4-4
by Mike Ault
Oracle Consulting
Services
Burleson
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