Oracle Consulting Oracle Training Oracle Support Development
Oracle Books
SQL Server Books
IT Books
Job Interview Books
Rampant Horse Books
911 Series
Pedagogue Books

Oracle Software
Write for Rampant
Publish with Rampant
Rampant News
Rampant Authors
Rampant Staff
Oracle News
Oracle Forum
Oracle Tips
Articles by our Authors
Press Releases
SQL Server Books

Oracle 11g Books

Oracle tuning

Oracle training

Oracle support

Remote Oracle


Privacy Policy



Oracle Tips by Burleson

Disk I/O Tuning

Chapter 3: HP-UX SCSI Tuning


Sub-options  and Descriptions


Display the status of all mode parameters available, separated by semicolon-blank (; ) or newline.

-c command

Cause the device to perform the specified command.  Command can be one of the following:



For magneto-optical devices that support write without erase, this command can be used to pre-erase the whole surface to increase data throughput on subsequent write operations.  This command maintains exclusive access to the surface during the pre-erasure.



For devices that have an internal write cache, this command causes the device to flush its cache to the physical medium.



Domain validation allows the user to check the quality of transmissions across the bus and helps to find problems like faulty and missing terminators, bad components, etc.  This command is only valid for Ultra160 and later devices.  If any errors encountered during domain validation, they will be logged in the syslog.



This command displays information about limits and negotiable parameters of a bus.



This command displays information about limits and negotiable parameters of a physical or a virtual peripheral device.



This command displays information about limits and negotiable parameters of a target peripheral device.



This command causes a target reset task management function to be sent to the associated target.



This command causes the system to generate a SCSI bus reset condition on the associated bus.  A SCSI bus reset condition causes all devices on the bus to be reset (including clearing all active commands on all devices).


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 Oracle Consulting offers Senior Oracle consultants which are available for all areas of Oracle support.  Common Oracle consulting support activities include short-term Oracle tuning, Oracle database troubleshooting, Oracle9i and Oracle10g migration, Oracle9iAS App Server consulting, Oracle design reviews and Oracle requirements evaluation support. Oracle support and Oracle consulting services are priced by the hour, so you only pay for what you need. These one-time Oracle consulting services commonly include:

  • Answering questions from your Oracle DBA technical staff

  • Repairing down production Oracle database systems

  • One-time Oracle tuning evaluation

  • Guru support for your Oracle DBA

  • Installation of Oracle application packages

For more information, please visit

Linux Oracle commands syntax poster

ION Oracle tuning software

Oracle data dictionary reference poster

Oracle Forum

BC Oracle consulting support training

BC remote Oracle DBA   



 Copyright © 1996 -2017 by Burleson. All rights reserved.

Oracle® is the registered trademark of Oracle Corporation. SQL Server® is the registered trademark of Microsoft Corporation. 
Many of the designations used by computer vendors to distinguish their products are claimed as Trademarks