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	<title>RMS PATH TMO - Revision history</title>
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	<updated>2026-05-30T05:06:48Z</updated>
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		<id>https://wiki.vmssoftware.com/index.php?title=RMS_PATH_TMO&amp;diff=964&amp;oldid=prev</id>
		<title>Darya.zelenina: Created page with &quot;&#039;&#039;&#039;RMS_PATH_TMO&#039;&#039;&#039; is a system parameter that specifies the system-wide cache timeout of the RMS path cache.  The RMS path cache in each process holds en...&quot;</title>
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		<updated>2019-06-30T16:34:08Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;#039;&amp;#039;&amp;#039;RMS_PATH_TMO&amp;#039;&amp;#039;&amp;#039; is a &lt;a href=&quot;/System_Parameters&quot; title=&quot;System Parameters&quot;&gt;system parameter&lt;/a&gt; that specifies the system-wide cache timeout of the RMS path cache.  The RMS path cache in each process holds en...&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;RMS_PATH_TMO&amp;#039;&amp;#039;&amp;#039; is a [[System Parameters|system parameter]] that specifies the system-wide cache timeout of the RMS path cache.&lt;br /&gt;
&lt;br /&gt;
The RMS path cache in each process holds entries that translate DVI+DID+name to new DVI+DID. These are used to greatly speed up directory path walks. Cache entries representing ordinary directory lookups are invalidated through the volume directory sequence number mechanism (UDB$L_DIRSEQ), which is clocked on every volume dismount and each time a directory is deleted or renamed. However, there is no convenient mechanism for invalidating a cache entry that represents a symlink, whose interpretation is affected by logical names or modification of the symlink. The only way to eliminate stale cache entries is with a timeout. This parameter is the system-wide cache timeout. Special values: 1 = don&amp;#039;t keep cache entries, -1 = keep cache entries forever. RMS_PATH_TMO is a DYNAMIC parameter.&lt;br /&gt;
&lt;br /&gt;
[[Category:System Parameters]]&lt;/div&gt;</summary>
		<author><name>Darya.zelenina</name></author>
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