89 lines
6.7 KiB
HTML
89 lines
6.7 KiB
HTML
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<!DOCTYPE html
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Use archives" />
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<meta name="abstract" content="Archiving provides a method of saving disk space by saving infrequently used objects to media, then removing them from the disk. During the archive operation, the disk storage on the system is freed, thus allowing you to store more vital data in that disk space." />
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<meta name="description" content="Archiving provides a method of saving disk space by saving infrequently used objects to media, then removing them from the disk. During the archive operation, the disk storage on the system is freed, thus allowing you to store more vital data in that disk space." />
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<meta name="DC.Relation" scheme="URI" content="rzai8overview.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzai8archivecreate.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzai8arciveind.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzai8retrieve.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2000, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2000, 2006" />
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<meta name="DC.Identifier" content="rzai8archiveman" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Use archives</title>
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</head>
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<body id="rzai8archiveman"><a name="rzai8archiveman"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Use archives</h1>
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<div><p>Archiving provides a method of saving disk space by saving infrequently
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used objects to media, then removing them from the disk. During the archive
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operation, the disk storage on the system is freed, thus allowing you to store
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more vital data in that disk space. </p>
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<p>You have the benefit of retaining this data, but without an impact to the
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storage capacity of your primary disk space. BRMS tracks the information associated
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with the objects that you archive. </p>
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<div class="note"><span class="notetitle">Note:</span> To use archive capabilities within BRMS, you must install the Advanced
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feature to BRMS (5722-BR1 Option 2).</div>
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<p>There are two concepts related to archiving: storage freed objects and
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dynamic retrieval of those objects.</p>
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<dl><dt class="dlterm">Storage freed objects </dt>
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<dd>Archiving saves objects, then deletes those objects or just the content
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of that object. When you archive objects that can be storage
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freed, you archive the data associated with the object to alternate media,
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but the object's description remains on the system. This description uses
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very little space and acts as a placeholder in the event that the object data
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needs to be retrieved. Only certain objects can have their data storage freed.
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They include: Database files, source files, stream files, and document library
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objects (DLOs). </dd>
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<dt class="dlterm">Dynamic retrieval of storage freed objects </dt>
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<dd>Dynamic retrieval of storage freed objects provides a way to access archived
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objects. When you need to use a storage freed object, such as a database file,
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BRMS locates and restores that object's data dynamically, using the description
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stored on the system. See Set dynamic retrieval of storage freed objects for
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details on how to use dynamic retrieval.</dd>
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</dl>
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<div class="p">With BRMS, you can manage archives by creating an <strong>archive policy</strong>.
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Unlike backup policies, archive policies save objects that are used infrequently,
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but may need to be accessed for later use if needed. The saved objects are
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removed from the system. For example, you may have legacy customer information
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stored in a database and you want to free disk space by archiving this data
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to media. Another difference between backup and archive is the difference
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between restore and retrieve. In general, objects saved as part of a backup
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policy are recovered from the save media. Archived objects are retrieved from
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the media and then after they are used can be re-archived back to the media. <div class="note"><span class="notetitle">Note:</span> Objects
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that are saved using an archive policy are not included in the system disaster
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recovery report.</div>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzai8archivecreate.htm">Create an archive policy</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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You can create an archive policy to handle infrequently used objects on your system.</li>
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzai8arciveind.htm">Change archive policy properties</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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After you create an archive policy, you can change properties associated with that policy.</li>
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzai8retrieve.htm">Manage dynamic retrieval</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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Storage freed objects allow you to archive certain object types, which include database files, source files, stream files, and document library objects (DLOs) off your system to media When you archive objects that can storage freed, you archive the data associated with the object to alternate media, but the object's description remains on the system. This description uses very little space and acts as a placeholder in the event that the object data needs to be retrieved.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzai8overview.htm" title="IBM Backup, Recovery and Media Services (BRMS) helps you implement a disciplined approach to managing your backups and provides you with an orderly way to retrieve lost or damaged data.">Backup, Recovery and Media Services (BRMS)</a></div>
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</div>
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</div>
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</body>
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</html> |