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\% Free Inodes (SUSE Linux Enterprise Server 9)

Microsoft.Linux.SLES.9.LogicalDisk.PercentFreeInodes.Collection (Rule)

Collection rule for the performance counter Logical Disk\\% Free Inodes

Knowledge Base article:

Summary

This rule collects performance data for the Logical Disk\% Free Inodes performance counter. The collected values are accessible in performance views and reports.

This metric exposes the percentage of the total inodes on the selected file system that are free.

If the file system does not use inodes, the percent free inodes value is returned as 100 percent. File system inode usage is calculated with current free and total values, which may not accurately represent true usage for file systems that dynamically allocate inodes, such as JFS.

Element properties:

TargetMicrosoft.Linux.SLES.9.LogicalDisk
CategoryPerformanceCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.Unix.WSMan.PerfCounterProvider.Filtered Default
WriteToDB WriteAction Microsoft.SystemCenter.CollectPerformanceData Default
WriteToDW WriteAction Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData Default

Source Code:

<Rule ID="Microsoft.Linux.SLES.9.LogicalDisk.PercentFreeInodes.Collection" Enabled="true" Target="Microsoft.Linux.SLES.9.LogicalDisk" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>PerformanceCollection</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Unix!Microsoft.Unix.WSMan.PerfCounterProvider.Filtered">

      <TargetSystem>$Target/Host/Property[Type="Unix!Microsoft.Unix.Computer"]/NetworkName$</TargetSystem>

      <Uri>http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/SCX_FileSystemStatisticalInformation?__cimnamespace=root/scx</Uri>

      <Filter/>

      <SplitItems>true</SplitItems>

      <Interval>300</Interval>

      <ObjectName>Logical Disk</ObjectName>

      <CounterName>% Free Inodes</CounterName>

      <InstanceName>$Target/Property[Type="Unix!Microsoft.Unix.LogicalDevice"]/DeviceID$</InstanceName>

      <InstanceProperty>/DataItem/WsManData/*[local-name(.)='SCX_FileSystemStatisticalInformation']/*[local-name(.)='Name']</InstanceProperty>

      <Value>$Data/WsManData/*[local-name(.)='SCX_FileSystemStatisticalInformation']/*[local-name(.)='PercentFreeInodes']$</Value>

      <PreMapperFilter>

        <RegExExpression>

          <ValueExpression>

            <XPathQuery Type="String">/DataItem/WsManData/*[local-name(.)='SCX_FileSystemStatisticalInformation']/*[local-name(.)='PercentFreeInodes']</XPathQuery>

          </ValueExpression>

          <Operator>MatchesRegularExpression</Operator>

          <Pattern>^[-]?([0-9]*\.[0-9]+|[0-9]+)$</Pattern>

        </RegExExpression>

      </PreMapperFilter>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectPerformanceData"/>

    <WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishPerformanceData"/>

  </WriteActions>

</Rule>