This manual describes how to use the Simultaneous Usage facility (SU) in the CMS operating environment both from FOCUS and from the Host Language Interface (HLI ). SU enables multiple users to read and maintain the same FOCUS or XFOCUS database using FOCUS or another programming language (through HLI). This manual is intended for a user or administrator who is familiar with CMS and FOCUS (especially the MODIFY and Maintain commands) or HLI.
This manual includes the following chapters:
Chapter/Appendix |
Contents |
|
1 |
Introduces the Simultaneous Usage facility and explains how it controls databases. |
|
2 |
Describes how to start and stop the sink machine, server commands, how to log and trace server activity, server security, and how to read FOCUS databases bypassing the sink machine and IUCV. |
|
3 |
Describes how to access databases on the sink machine, discusses working in SU using the MODIFY and Maintain commands, describes how to ensure transaction integrity. |
|
4 |
Describes how to work in SU with HLI, including how to create an HLI module and how to set up the File Communication Block (FCB) for use in SU. |
|
5 |
Describes database storage considerations and how to keep Master Files open between requests. |
|
A |
Lists FOCUS error messages and explanations. |
|
B |
Describes HLI error codes and explanations. |
|
The following conventions apply throughout this manual:
|
Convention |
Description |
|---|---|
THIS TYPEFACE or this typeface |
Denotes syntax that you must enter exactly as shown. |
this typeface
|
Represents a placeholder (or variable) in syntax for a value that you or the system must supply. |
underscore
|
Indicates a default setting. |
|
this typeface |
Represents a placeholder (or variable), a cross-reference, or an important term. It may also indicate a button, menu item, or dialog box option that you can click or select. |
|
Key + Key |
Indicates keys that you must press simultaneously. |
{ }
|
Indicates two or three choices. Type one of them, not the braces. |
[ ] |
Indicates a group of optional parameters. None are required, but you may select one of them. Type only the parameter in the brackets, not the brackets. |
| |
Separates mutually exclusive choices in syntax. Type one of them, not the symbol. |
... |
Indicates that you can enter a parameter multiple times. Type only the parameter, not the ellipsis (...). |
|
. . . |
Indicates that there are (or could be) intervening or additional commands. |
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Do you have questions about FOCUS?
Call Information Builders Customer Support Services (CSS) at (800) 736-6130 or (212) 736-6130. Customer Support Consultants are available Monday through Friday between 8:00 A.M. and 8:00 P.M. EST to address all your FOCUS questions. Information Builders consultants can also give you general guidance regarding product capabilities and documentation. Please be ready to provide your six-digit site code (xxxx.xx) when you call.
You can also access support services electronically, 24 hours a day, with InfoResponse Online. InfoResponse Online is accessible through our World Wide Web site, http://www.informationbuilders.com. It connects you to the tracking system and known-problem database at the Information Builders support center. Registered users can open, update, and view the status of cases in the tracking system and read descriptions of reported software issues. New users can register immediately for this service. The technical support section of www.informationbuilders.com also provides usage techniques, diagnostic tips, and answers to frequently asked questions.
To learn about the full range of available support services, ask your Information Builders representative about InfoResponse Online, or call (800) 969-INFO.
To help our consultants answer your questions most effectively, be ready to provide the following information when you call:
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