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	<title>Volume Shadowing - Revision history</title>
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	<updated>2026-04-30T18:36:21Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.vmssoftware.com/index.php?title=Volume_Shadowing&amp;diff=2760&amp;oldid=prev</id>
		<title>Martinv at 12:48, 16 December 2025</title>
		<link rel="alternate" type="text/html" href="https://wiki.vmssoftware.com/index.php?title=Volume_Shadowing&amp;diff=2760&amp;oldid=prev"/>
		<updated>2025-12-16T12:48:16Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:48, 16 December 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [http://vmssoftware.com/docs/VSI_OpenVMS_layered_products/VSI_Volume_Shadowing_SPD.pdf VSI Volume Shadowing for OpenVMS Software Product Description]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [http://vmssoftware.com/docs/VSI_OpenVMS_layered_products/VSI_Volume_Shadowing_SPD.pdf VSI Volume Shadowing for OpenVMS Software Product Description]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c04622352 Volume Shadowing for OpenVMS Manual]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c04622352 Volume Shadowing for OpenVMS Manual]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Volume Management]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Martinv</name></author>
	</entry>
	<entry>
		<id>https://wiki.vmssoftware.com/index.php?title=Volume_Shadowing&amp;diff=1425&amp;oldid=prev</id>
		<title>Jane.doe: Created page with &quot;&#039;&#039;&#039;Volume Shadowing&#039;&#039;&#039; is a System Integrated Product that implements a RAID Level 1 storage strategy (sometimes referred to as disk mirroring) to provide data availab...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.vmssoftware.com/index.php?title=Volume_Shadowing&amp;diff=1425&amp;oldid=prev"/>
		<updated>2019-11-13T19:57:56Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;#039;&amp;#039;&amp;#039;Volume Shadowing&amp;#039;&amp;#039;&amp;#039; is a &lt;a href=&quot;/index.php?title=SIP&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;SIP (page does not exist)&quot;&gt;System Integrated Product&lt;/a&gt; that implements a RAID Level 1 storage strategy (sometimes referred to as disk mirroring) to provide data availab...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Volume Shadowing&amp;#039;&amp;#039;&amp;#039; is a [[SIP|System Integrated Product]] that implements a RAID Level 1 storage strategy (sometimes referred to as disk mirroring) to provide data availability for disk devices. It maintains redundant copies of data on a collection of disk volumes called a [[Shadow Set|shadow set]]: if one of the disks in the shadow set becomes unavailable, the data remains accessible; reading performance is also enhanced.&lt;br /&gt;
&lt;br /&gt;
Volume Shadowing for OpenVMS is included in the High Availability Operating Environment (HAOE) media kit. &lt;br /&gt;
&lt;br /&gt;
=See also=&lt;br /&gt;
* [[Shadow Set]]&lt;br /&gt;
* [http://vmssoftware.com/docs/VSI_OpenVMS_layered_products/VSI_Volume_Shadowing_SPD.pdf VSI Volume Shadowing for OpenVMS Software Product Description]&lt;br /&gt;
* [https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c04622352 Volume Shadowing for OpenVMS Manual]&lt;/div&gt;</summary>
		<author><name>Jane.doe</name></author>
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