92 lines
5.6 KiB
HTML
92 lines
5.6 KiB
HTML
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<meta name="DC.Title" content="Logs and journals" />
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<meta name="abstract" content="Record keeping is an important way for the system to protect data and track system problems. This topic describes what logs and journals are for and how to use them." />
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<title>Logs and journals</title>
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<h1 class="topictitle1">Logs and journals</h1>
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<div><p>Record keeping is an important way for the system to protect data
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and track system problems. This topic describes what logs and journals are
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for and how to use them.</p>
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<p>Protecting the data and resources on the system is a critical part of the
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operating system. One important way the iSeries™ servers accomplish that goal
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is to keep detailed records of any changes to system resources. These records,
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called <em>logs</em> or <em>journals</em>, can help solve system problems or recover
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damaged data.</p>
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<div class="section"><h4 class="sectiontitle">Logs</h4><p>A <dfn class="term">log</dfn> is a database file that
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contains the history of backup, archive, recovery, and media management operations
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that can be displayed online or printed for future reference.
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Logs are used in backup and recovery situations. Logs can also contain information
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about jobs, general system information, and problems.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption>Table 1. Types
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of logs</caption><thead align="left"><tr valign="bottom"><th valign="bottom" width="14.285714285714285%" id="d0e42">Log</th>
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<th valign="bottom" width="85.71428571428571%" id="d0e44">Description</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="14.285714285714285%" headers="d0e42 ">Job logs</td>
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<td valign="top" width="85.71428571428571%" headers="d0e44 ">Track the description, status, and action of jobs performed by the
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system.</td>
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</tr>
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<tr><td valign="top" width="14.285714285714285%" headers="d0e42 ">History logs</td>
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<td valign="top" width="85.71428571428571%" headers="d0e44 ">Get general system information, like device changes, operator messages,
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job completion and other activities.</td>
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</tr>
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<tr><td valign="top" width="14.285714285714285%" headers="d0e42 ">Problem logs</td>
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<td valign="top" width="85.71428571428571%" headers="d0e44 ">Retrieve records of system problems that occurred on an iSeries system.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section"><h4 class="sectiontitle">Journals</h4><p>A <dfn class="term">journal</dfn> is a system object
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that contains information about changes made to another system object. The
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journal can be used to recover database files, data areas, data queues, and
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integrated file systems objects. Regular journaling speeds up management tasks
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such as save operations.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzal2reference.htm" title="Learn about the essential components of the iSeries server, including the basics of work management, how to interact with the operating system, and system maintenance.">i5/OS concepts</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="../rzahb/rzahbloa.htm">Job logs</a></div>
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<div><a href="../rzahb/rzahbloc.htm">History logs</a></div>
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<div><a href="../rzahb/rzahbloe.htm">Problem logs</a></div>
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<div><a href="../rzaki/rzakikickoff.htm">Journal management</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../books/sc415304.pdf" target="_blank">Backup and Recovery PDF</a></div>
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</div>
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</div>
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