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Vdbench 5.04
Vdbench
Users Guide
Version: 5.04
June 2013
Author: Henk Vandenbergh
Copyright © 2000, 2013, Oracle and/or its affiliates. All rights reserved. 1

Vdbench 5.04
1. Copyright Notice
Copyright © 2000, 2013, Oracle and/or its affiliates. All rights reserved.
2. Trademark Notice
Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be
trademarks of their respective owners.
3. License Restrictions Warranty/Consequential Damages Disclaimer
This software and related documentation are provided under a license agreement containing
restrictions on use and disclosure and are protected by intellectual property laws. Except as
expressly permitted in your license agreement or allowed by law, you may not use, copy,
reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform,
publish or display any part, in any form, or by any means. Reverse engineering, disassembly,
or
decompilation of this software, unless required by law for interoperability, is prohibited.
4. Warranty Disclaimer
The information contained herein is subject to change without notice and is not warranted to
be error-free. If you find any errors, please report them to us in writing.
5. Restricted Rights Notice
If this is software or related documentation that is delivered to the U.S. Government or
anyone licensing it on behalf of the U.S. Government, the following notice is applicable:
U.S. GOVERNMENT END USERS: Oracle programs, including any operating system,
integrated software, any programs installed on the hardware, and/or documentation,
delivered to U.S. Government end users are “commercial computer software” pursuant to the
applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As
such, use, duplication, disclosure, modification, and adaptation of the programs, including
any operating system, integrated software, any programs installed on the hardware, and/or
documentation, shall be subject to license terms and license restrictions applicable to the
programs. No other rights are granted to the U.S. Government.
6. Hazardous Applications Notice
This software or hardware is developed for general use in a variety of information
management applications. It is not developed or intended for use in any inherently
dangerous applications, including applications that may create a risk of personal injury. If
you use this software or hardware in dangerous applications, then you shall be responsible
to take all appropriate failsafe, backup, redundancy, and other measures to ensure its safe
use. Oracle Corporation and its affiliates disclaim any liability for any damages caused by
use of this software or hardware in dangerous applications.
7. Third Party Content, Products, and Services Disclaimer
This software or hardware and documentation may provide access to or information on
content, products and services from third parties. Oracle Corporation and its affiliates are not
responsible for and expressly disclaim all warranties of any kind with respect to third-party
content, products, and services. Oracle Corporation and its affiliates will not be responsible
Copyright © 2000, 2013, Oracle and/or its affiliates. All rights reserved. 2

Vdbench 5.04
for any loss, costs, or damages incurred due to your access to or use of third-party content,
products, or services.
Copyright © 2000, 2013, Oracle and/or its affiliates. All rights reserved. 3

Vdbench 5.04
TABLE OF CONTENTS :
1 VDBENCH: DISK VDBENCH WORKLOAD GENERATOR ......................................... 5
1.1 Introduction .............................................................................................................................. 6
1.2 Objective ................................................................................................................................... 6
1.3 Terminology .............................................................................................................................. 6
1.4 Summary of changes since release 5.03 .................................................................................. 7
1.5 Summary of changes since release 5.02 .................................................................................. 7
1.6 Installing Vdbench ................................................................................................................... 8
1.7 How to start Vdbench: ............................................................................................................. 9
1.8 Execution parameter overview ............................................................................................. 10
1.9 Parameter File(s) .................................................................................................................... 12
1.10 Execution parameter detail ................................................................................................. 20
1.11 Vdbench utility functions. ................................................................................................... 25
1.12 General parameter detail .................................................................................................... 27
1.13 Replay Group (RG) parameter detail ................................................................................ 32
1.14 Host Definition parameter detail ........................................................................................ 33
1.15 Storage Definition parameter detail .................................................................................. 35
1.16 Workload Definition parameter detail .............................................................................. 42
1.17 Run Definition for raw I/O parameter detail .................................................................... 48
1.18 Hot banding and SD concatenation: .................................................................................. 56
1.19 Data Deduplication: ............................................................................................................. 57
1.20 Data Validation and Journaling ........................................................................................ 61
1.21 Report files ............................................................................................................................ 64
1.22 Swat Vdbench Trace Replay ............................................................................................... 67
Copyright © 2000, 2013, Oracle and/or its affiliates. All rights reserved. 4

Vdbench 5.04
1.23 Complete Swat Vdbench Replay Example ........................................................................ 68
1.24 File system testing ................................................................................................................ 69
1.25 File System Definition (FSD) parameter overview: .......................................................... 72
1.26 Filesystem Workload Definition (FWD) parameter overview: ....................................... 72
1.27 Run Definition (RD) parameters for file systems, overview ............................................ 73
1.28 File System Definition (FSD) parameter detail: ................................................................ 73
1.29 File system Workload Definition (FWD) detail ................................................................. 77
1.30 Run Definition (RD) parameters for file system testing, detail ....................................... 80
1.31 Multi Threading and file system testing ............................................................................ 85
1.32 Operations counts vs. nfsstat counts: ................................................................................. 86
1.33 Report file examples ............................................................................................................ 87
1.34 Sample parameter files ....................................................................................................... 91
1.35 Permanently override Java socket port numbers. ............................................................ 94
1.36 Java Runtime Environment ................................................................................................ 95
1.37 Solaris ................................................................................................................................... 95
2 VDBENCH FLATFILE SELECTIVE PARSING ........................................................... 96
3 VDBENCH WORKLOAD COMPARE .......................................................................... 97
4 VDBENCH SD PARAMETER GENERATION TOOL.
......................................................................................................................................... 98
5 VDBENCH DATA VALIDATION POST-PROCESSING TOOL. ............................... 100
1 Vdbench: Disk Vdbench Workload Generator
Getting started with Vdbench:
Copyright © 2000, 2013, Oracle and/or its affiliates. All rights reserved. 5
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