Home
  •  

Used Megabytes (Red Hat Enterprise Linux Server 5)

Microsoft.Linux.RHEL.5.LogicalDisk.UsedMegabyte.Collection (Rule)

Collection rule for the performance counter Logical Disk\Used Megabytes

Knowledge Base article:

Summary

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

This metric exposes the total amount of allocated space on a specific logical disk (file system) in megabytes.

The file system space reserved for the root user is included in the calculated used space. File system space usage is calculated with current free and total values, which may not accurately represent true usage for file systems that dynamically allocate space, such as ZFS.

Element properties:

TargetMicrosoft.Linux.RHEL.5.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.RHEL.5.LogicalDisk.UsedMegabyte.Collection" Target="Microsoft.Linux.RHEL.5.LogicalDisk" Enabled="true" Remotable="true">

  <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>Used Megabytes</CounterName>

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

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

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

    </DataSource>

  </DataSources>

  <WriteActions>

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

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

  </WriteActions>

</Rule>