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	<title>Comments on: Testing Backup tapes before use?</title>
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	<item>
		<title>By: muzikevik</title>
		<link>http://itknowledgeexchange.techtarget.com/itanswers/testing-backup-tapes-before-use/#comment-102085</link>
		<dc:creator>muzikevik</dc:creator>
		<pubDate>Thu, 26 Jan 2012 22:09:33 +0000</pubDate>
		<guid isPermaLink="false">#comment-102085</guid>
		<description><![CDATA[Try cleaning the drives]]></description>
		<content:encoded><![CDATA[<p>Try cleaning the drives</p>
]]></content:encoded>
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	<item>
		<title>By: splat</title>
		<link>http://itknowledgeexchange.techtarget.com/itanswers/testing-backup-tapes-before-use/#comment-76910</link>
		<dc:creator>splat</dc:creator>
		<pubDate>Fri, 07 May 2010 15:10:25 +0000</pubDate>
		<guid isPermaLink="false">#comment-76910</guid>
		<description><![CDATA[I agree with Tom that doing backups before &lt;i&gt;and&lt;/i&gt; after your batch processing is a bit much.  If it&#039;s required, though, you might want to look into backing up into save files rather than directly to tape.  The process is loads faster and gives you a lot more flexibility in when you do actually write the tapes.]]></description>
		<content:encoded><![CDATA[<p>I agree with Tom that doing backups before <i>and</i> after your batch processing is a bit much.  If it&#8217;s required, though, you might want to look into backing up into save files rather than directly to tape.  The process is loads faster and gives you a lot more flexibility in when you do actually write the tapes.</p>
]]></content:encoded>
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	<item>
		<title>By: tomliotta</title>
		<link>http://itknowledgeexchange.techtarget.com/itanswers/testing-backup-tapes-before-use/#comment-76870</link>
		<dc:creator>tomliotta</dc:creator>
		<pubDate>Thu, 06 May 2010 08:31:26 +0000</pubDate>
		<guid isPermaLink="false">#comment-76870</guid>
		<description><![CDATA[First, your backups are strikingly excessive. You should be investing in journalling in other recovery options instead of doing &quot;before and after batch&quot; backups. (I don&#039;t recall that degree of backups since some 30 years ago or so.) It&#039;s no wonder your tapes go bad.

A full system save every week? What in the world for? Once every three to six months is more reasonable. Rotating library saves through the week makes some sense along with incrementals. Rotate perhaps like libraries A through G on Mondays; H through N on Tuesdays, etc.

Split a couple drives off as a user ASP. Use them for your journal receivers and for SAVSECDTA/SAVCFG savefiles. If you have a decent RAID configuration, cut your backups even more.

Tom]]></description>
		<content:encoded><![CDATA[<p>First, your backups are strikingly excessive. You should be investing in journalling in other recovery options instead of doing &#8220;before and after batch&#8221; backups. (I don&#8217;t recall that degree of backups since some 30 years ago or so.) It&#8217;s no wonder your tapes go bad.</p>
<p>A full system save every week? What in the world for? Once every three to six months is more reasonable. Rotating library saves through the week makes some sense along with incrementals. Rotate perhaps like libraries A through G on Mondays; H through N on Tuesdays, etc.</p>
<p>Split a couple drives off as a user ASP. Use them for your journal receivers and for SAVSECDTA/SAVCFG savefiles. If you have a decent RAID configuration, cut your backups even more.</p>
<p>Tom</p>
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	<item>
		<title>By: mcl</title>
		<link>http://itknowledgeexchange.techtarget.com/itanswers/testing-backup-tapes-before-use/#comment-55251</link>
		<dc:creator>mcl</dc:creator>
		<pubDate>Tue, 29 Jul 2008 16:51:09 +0000</pubDate>
		<guid isPermaLink="false">#comment-55251</guid>
		<description><![CDATA[Ditto on what CyberStorage says on Media Quality and cleaning your drives. You may be at the mercy of the data center on this, but if it is causing problems, I would be complaining long and loud...

I&#039;m a fan of BRMS - have been using it at various locations for at least 10 years - I think it is one of the better products out there - just has a bit of a learning curve to set up properly.

BRMS tracks media useage as well as read and write errors. You can set &quot;threshold&quot; values for the class of media you use. (Go BRMMED, option #1). You can then run the Threshold Report (Go BRMMEDACT opt#6) to see what volumes should be taken out of rotation. You can also see the usage and errors using the Work with Media command (GO BRMMED opt#2 or WRKMEDBRM) and pressing F11 a couple of times on list screen. However, I don&#039;t think that BRMS will actually mark the volumes as unusuable. You have to run the reports and then eject the unusuable volumes.

Here are a few ideas to look at.. 

You didn&#039;t say what error message you were getting, but if there is a response that will tell BRMS to try another volume you could set that up in the system reply list. Assuming you have enough expired volumes in the library it should work.

If you have multiple drives in your tape silo you might be able to run parallel backups. BRMS will handle that and decide what to put where. That will not get around bad media, but it will considerable speed up your backup. 

lastly, if you have the DASD space, consider backing up to another ASP or even to save files. Then run your tape backup during the day.  

Regards
Mike]]></description>
		<content:encoded><![CDATA[<p>Ditto on what CyberStorage says on Media Quality and cleaning your drives. You may be at the mercy of the data center on this, but if it is causing problems, I would be complaining long and loud&#8230;</p>
<p>I&#8217;m a fan of BRMS &#8211; have been using it at various locations for at least 10 years &#8211; I think it is one of the better products out there &#8211; just has a bit of a learning curve to set up properly.</p>
<p>BRMS tracks media useage as well as read and write errors. You can set &#8220;threshold&#8221; values for the class of media you use. (Go BRMMED, option #1). You can then run the Threshold Report (Go BRMMEDACT opt#6) to see what volumes should be taken out of rotation. You can also see the usage and errors using the Work with Media command (GO BRMMED opt#2 or WRKMEDBRM) and pressing F11 a couple of times on list screen. However, I don&#8217;t think that BRMS will actually mark the volumes as unusuable. You have to run the reports and then eject the unusuable volumes.</p>
<p>Here are a few ideas to look at.. </p>
<p>You didn&#8217;t say what error message you were getting, but if there is a response that will tell BRMS to try another volume you could set that up in the system reply list. Assuming you have enough expired volumes in the library it should work.</p>
<p>If you have multiple drives in your tape silo you might be able to run parallel backups. BRMS will handle that and decide what to put where. That will not get around bad media, but it will considerable speed up your backup. </p>
<p>lastly, if you have the DASD space, consider backing up to another ASP or even to save files. Then run your tape backup during the day.  </p>
<p>Regards<br />
Mike</p>
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	</item>
	<item>
		<title>By: cyberstorage</title>
		<link>http://itknowledgeexchange.techtarget.com/itanswers/testing-backup-tapes-before-use/#comment-55193</link>
		<dc:creator>cyberstorage</dc:creator>
		<pubDate>Mon, 28 Jul 2008 14:46:24 +0000</pubDate>
		<guid isPermaLink="false">#comment-55193</guid>
		<description><![CDATA[Not all tapes are created equally.  Make sure you are using quality tapes from a reputable vendor that are properly acclimated before using them.  Also make sure that your drive has been properly cleaned.]]></description>
		<content:encoded><![CDATA[<p>Not all tapes are created equally.  Make sure you are using quality tapes from a reputable vendor that are properly acclimated before using them.  Also make sure that your drive has been properly cleaned.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: gilly400</title>
		<link>http://itknowledgeexchange.techtarget.com/itanswers/testing-backup-tapes-before-use/#comment-55167</link>
		<dc:creator>gilly400</dc:creator>
		<pubDate>Mon, 28 Jul 2008 08:20:21 +0000</pubDate>
		<guid isPermaLink="false">#comment-55167</guid>
		<description><![CDATA[Hi,

Have you tried initializing the tapes on another (compatible) drive?

Regards,

Martin Gilbert.]]></description>
		<content:encoded><![CDATA[<p>Hi,</p>
<p>Have you tried initializing the tapes on another (compatible) drive?</p>
<p>Regards,</p>
<p>Martin Gilbert.</p>
]]></content:encoded>
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