151 lines
9.6 KiB
HTML
151 lines
9.6 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Tape" />
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<meta name="abstract" content="This topic describes the advantages and limitations of using tape for storage. It makes some recommendations about when tape is a good choice and when you should consider other media. It also provides planning, setup, management, and troubleshooting information for stand-alone tape devices and tape libraries." />
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<meta name="description" content="This topic describes the advantages and limitations of using tape for storage. It makes some recommendations about when tape is a good choice and when you should consider other media. It also provides planning, setup, management, and troubleshooting information for stand-alone tape devices and tape libraries." />
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<meta name="DC.Relation" scheme="URI" content="rzam4overview.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4tapetypes.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4tapevsoptical.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4plantape.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4installstandalone.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4install.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4config.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4usetape.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4tapebkgrnd.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4scenario.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzam4troubleshoot.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzam4tape" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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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>Tape</title>
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</head>
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<body id="rzam4tape"><a name="rzam4tape"><!-- --></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">Tape</h1>
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<div><p>This topic describes the advantages and limitations of using tape
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for storage. It makes some recommendations about when tape is a good choice
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and when you should consider other media. It also provides planning, setup,
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management, and troubleshooting information for stand-alone tape devices and
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tape libraries.</p>
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<p>Tape is probably the most common form of removable storage media for the iSeries™.
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It has been around for some time, so it has been widely adopted and continues
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to be popular.</p>
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<p>Tape provides several advantages over other storage methods, including
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the following:</p>
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<ul><li><span class="uicontrol">Cost.</span> Tape is cost effective, when compared to
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disk. While the cost of disk storage is falling, the cost of tape is also
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falling on a per-gigabyte basis.</li>
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<li><span class="uicontrol">Security.</span> It is easy to keep your data secure by
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securely storing backups or copies at an off-site location. This also guards
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against on-site data corruption from viruses, fire, natural disasters, accidental
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deletions, and other data-loss incidents.</li>
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<li><span class="uicontrol">Reusable.</span> You can rotate your tapes for backups,
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which means that you have more than one set of tapes. When one set expires,
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you can write over the data on it and use the media again.</li>
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<li><span class="uicontrol">Capacity.</span> As the amount of data you create grows,
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you can increase your capacity by simply adding additional tape volumes.</li>
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</ul>
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<p>While there are many advantages to using tape, there are also some drawbacks:</p>
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<ul><li><span class="uicontrol">Durability.</span> Tape is reusable, but tapes do wear
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out over time and require replacement. If they are not replaced when needed,
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your data can be compromised.</li>
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<li><span class="uicontrol">Sequential access to data.</span> Tapes give you access
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to the data on them in the order in which that data was recorded. If you are
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looking for a particular item on a tape, it might take some time to locate
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it.</li>
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</ul>
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<p>The following topics provide information for single tape drives, tape autoloaders,
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tape libraries, and cartridges. You can use this information to plan for,
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set up, use, maintain, and troubleshoot a tape solution.</p>
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<div class="section"><h4 class="sectiontitle">Concept and planning</h4><ul><li>Types of tape solutions</li>
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<li>Comparison of offline storage</li>
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<li>Plan for a tape solution</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Installing and configuring</h4><ul><li>Install stand-alone tape devices</li>
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<li>Install tape libraries</li>
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<li>Configure tape libraries</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Use and maintenance</h4><ul><li>Use tape devices</li>
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<li>Maintain tape resources</li>
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<li>Example: Manage tape resources in a tape library</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Troubleshooting</h4><ul><li>Verify that your tape unit works correctly</li>
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<li>Collect library information for problem analysis</li>
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<li>Problem handling for tape libraries</li>
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</ul>
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<div class="note"><span class="notetitle">Note:</span> IBM grants you a nonexclusive copyright
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license to use all programming code examples from which you can generate similar
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function tailored to your own specific needs.<p>SUBJECT TO ANY
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STATUTORY WARRANTIES WHICH CANNOT BE EXCLUDED, IBM, ITS PROGRAM DEVELOPERS
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AND SUPPLIERS MAKE NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT, REGARDING THE PROGRAM
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OR TECHNICAL SUPPORT, IF ANY. </p>
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<p>UNDER NO CIRCUMSTANCES IS
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IBM, ITS PROGRAM DEVELOPERS OR SUPPLIERS LIABLE FOR ANY OF THE FOLLOWING,
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EVEN IF INFORMED OF THEIR POSSIBILITY: </p>
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<ol><li>LOSS OF, OR DAMAGE TO, DATA;</li>
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<li>DIRECT, SPECIAL, INCIDENTAL, OR INDIRECT DAMAGES, OR FOR ANY ECONOMIC
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CONSEQUENTIAL DAMAGES; OR </li>
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<li>LOST PROFITS, BUSINESS, REVENUE, GOODWILL, OR ANTICIPATED SAVINGS.</li>
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</ol>
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<p>SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION
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OF DIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, SO SOME OR ALL OF THE ABOVE
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LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.</p>
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</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"><strong><a href="rzam4tapetypes.htm">Types of tape solutions</a></strong><br />
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You can group types of tape solutions into two broad categories: single tape devices and automated tape devices.</li>
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<li class="ulchildlink"><strong><a href="rzam4tapevsoptical.htm">Comparison of offline storage</a></strong><br />
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Offline storage is data that you save on media that is separate from the server.</li>
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<li class="ulchildlink"><strong><a href="rzam4plantape.htm">Plan for a tape solution</a></strong><br />
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Several things need to be considered when planning for a tape solution.</li>
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<li class="ulchildlink"><strong><a href="rzam4installstandalone.htm">Install stand-alone tape devices</a></strong><br />
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The instructions for installing and configuring your tape device
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vary based on which model of iSeries server you have and which type of tape device
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you are installing.</li>
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<li class="ulchildlink"><strong><a href="rzam4install.htm">Install tape libraries</a></strong><br />
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The iSeries server
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automatically configures and varies on an attached tape library.</li>
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<li class="ulchildlink"><strong><a href="rzam4config.htm">Configure tape libraries</a></strong><br />
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After you have set up the tape library and connected it to your
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system, the iSeries server
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automatically configures it.</li>
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<li class="ulchildlink"><strong><a href="rzam4usetape.htm">Use tape devices</a></strong><br />
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This topic provides general information about how to use your stand-alone tape device or tape library.</li>
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<li class="ulchildlink"><strong><a href="rzam4tapebkgrnd.htm">Maintain tape resources</a></strong><br />
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This section contains topics that provide information about how to keep your tape resources in good condition.</li>
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<li class="ulchildlink"><strong><a href="rzam4scenario.htm">Example: Manage tape resources</a></strong><br />
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This topic provides an example of how to manage tape resources.</li>
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<li class="ulchildlink"><strong><a href="rzam4troubleshoot.htm">Troubleshoot tape resources</a></strong><br />
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These topics provide information for troubleshooting your tape resources.</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="rzam4overview.htm" title="As your company produces a greater volume of information, and as the value of that information grows, the methods you use to protect and preserve it become vital corporate strategies. Storage has gone from being a feature of a server to being an entity unto itself.">Storage solutions</a></div>
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</div>
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</div>
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</body>
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</html>
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