68 lines
3.9 KiB
HTML
68 lines
3.9 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
||
<!DOCTYPE html
|
||
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
<html lang="en-us" xml:lang="en-us">
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
||
<meta name="security" content="public" />
|
||
<meta name="Robots" content="index,follow" />
|
||
<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))' />
|
||
<meta name="DC.Type" content="reference" />
|
||
<meta name="DC.Title" content="Handle tape media errors" />
|
||
<meta name="DC.Relation" scheme="URI" content="rzaiurzaiu103.htm" />
|
||
<meta name="DC.Relation" scheme="URI" content="rzaiurzaiu120.htm" />
|
||
<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
|
||
<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" />
|
||
<meta name="DC.Format" content="XHTML" />
|
||
<meta name="DC.Identifier" content="rzaiu165" />
|
||
<meta name="DC.Language" content="en-us" />
|
||
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
||
<!-- US Government Users Restricted Rights -->
|
||
<!-- Use, duplication or disclosure restricted by -->
|
||
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
||
<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
|
||
<link rel="stylesheet" type="text/css" href="./ic.css" />
|
||
<title>Handle tape media errors</title>
|
||
</head>
|
||
<body id="rzaiu165"><a name="rzaiu165"><!-- --></a>
|
||
<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
|
||
<h1 class="topictitle1">Handle tape media errors</h1>
|
||
<div><div class="section"><div class="p">When reading from or writing to tape, it is normal for some errors
|
||
to occur. Three types of tape errors can occur during save and restore operations:
|
||
<dl><dt class="dlterm">Recoverable errors</dt>
|
||
<dd>Some media devices support recovering from media errors. The server repositions
|
||
the tape automatically and tries the operation again.</dd>
|
||
<dt class="dlterm">Unrecoverable errors–processing can continue</dt>
|
||
<dd>In some cases, the server cannot continue to use the current tape, but
|
||
can continue processing on a new tape. The server requests you to load another
|
||
tape. The tape with the irrecoverable error can be used for restore operations.</dd>
|
||
<dt class="dlterm">Unrecoverable errors–processing cannot continue</dt>
|
||
<dd>In some cases, an irrecoverable media error causes the server to stop
|
||
the save process. How to recover from a media error during a SAVLIB operation
|
||
describes what to do when this type of error occurs.</dd>
|
||
</dl>
|
||
</div>
|
||
</div>
|
||
<div class="section"><p>Tapes physically wear out after extended use. You can determine
|
||
if a tape is wearing out by periodically printing the error log. Use the
|
||
Print Error Log (PRTERRLOG) command and specify TYPE(*VOLSTAT). The printed
|
||
output provides statistics about each tape volume. If you use unique names
|
||
(volume identifiers) for your tapes, you can determine which tapes have excessive
|
||
read or write errors. You should remove these bad tapes from your media library.</p>
|
||
</div>
|
||
<div class="section"><p>If you suspect that you have a bad tape, use the Display Tape
|
||
(DSPTAP) or the Duplicate Tape (DUPTAP) command to check the integrity of
|
||
the tape. These commands read the entire tape and detect objects on the tape
|
||
that the server cannot read.</p>
|
||
</div>
|
||
</div>
|
||
<div>
|
||
<div class="familylinks">
|
||
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiurzaiu103.htm" title="Use this information to select and manage the save media that you will use for all your save functions.">Prepare your media to save your server</a></div>
|
||
</div>
|
||
<div class="reltasks"><strong>Related tasks</strong><br />
|
||
<div><a href="rzaiurzaiu120.htm">How to recover from a media error during a SAVLIB operation</a></div>
|
||
</div>
|
||
</div>
|
||
</body>
|
||
</html> |