Create db2mon.ps1

Create db2mon.ps1 PowerShell script version for Windows

perf/db2mon.ps1

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+<#
+.SYNOPSIS
+
+Collects and reports performance metrics against a Db2 database. 
+
+.DESCRIPTION
+
+The db2mon.ps1 script executes a set of (CLP) db2 statements that uses the lightweight in-memory monitoring interfaces
+to  collect monitoring data for a specific period of time, to generate a usefull set of performance metrics. 
+
+.PARAMETER dbName
+Specifies the target database name.
+
+.PARAMETER monitorTime
+Specifies monitor interval time in seconds, the script will capture the metrics.
+
+.INPUTS
+
+None. You cannot pipe objects to db2mon.ps1.
+
+.OUTPUTS
+
+None Powershell .Net objects. The script just writes regular text to the console. 
+The output can be redirected to a file. 
+
+.EXAMPLE
+
+PS> .\db2mon.ps1 SAMPLE
+
+.EXAMPLE
+
+PS> .\db2mon.ps1 -dbName SAMPLE -monitorTime 60 
+
+.LINK
+
+https://www.ibm.com/support/knowledgecenter/SSEPGG_11.5.0/com.ibm.db2.luw.admin.perf.doc/doc/t0070377.html
+
+#>
+
+
+
+Param(
+    #dbName
+    [Parameter(Mandatory=$true, Position=1)]
+    [string]$dbName,
+
+    [Parameter(Mandatory=$false, Position = 2)]
+    [int]$monitorTime 
+)
+
+$scriptRoot = (Split-Path $MyInvocation.MyCommand.Definition)
+
+Set-Item -Path env:DB2CLP -value "**$$**"
+# Remove any user settings
+if ( Test-Path -Path env:DB2OPTIONS ) {
+    Remove-Item -Path env:DB2OPTIONS 
+}
+
+if ([string]::IsNullOrEmpty($dbName) ) { 
+    Write-Host "Specify a database to connect to!"
+    Write-Host "Usage:"
+    Write-Host "  db2mon.ps1 <DBNAME> [interval]"
+    Write-Host ""
+    Write-Host "If no interval is specified, script will wait for user input to break data collection!"
+    exit 1
+}
+
+if ( $monitorTime -ne $null ) {
+
+    if ( $monitorTime -gt 0  ) {
+        Write-Host "Monitoring interval set to $monitorTime seconds"
+    }
+    if ($monitorTime -lt 0  ) {
+        Write-Host "Error: Monitoring interval $monitorTime is negative - only positive intervals are supported"
+        exit 2 
+    }
+}
+
+
+Write-Host "Scripts should be found in $scriptRoot"
+
+db2 -v connect to $dbName
+db2 -v create bufferpool db2monbp
+db2 -v create user temporary tablespace db2montmptbsp bufferpool db2monbp
+
+db2 +c -tvf $scriptRoot/db2monBefore.sql
+
+# Earlier versions did not offer a easily changable monitor time
+if (  $monitorTime -eq $null ) {
+    db2 +c -tvf $scriptRoot/db2monInterval.sql
+} else {
+    if ( $monitorTime -eq 0 ) {
+        $void = Read-Host -Prompt "Hit enter to finish monitoring:"
+        Remove-Variable -Name void
+    } else {
+        Start-Sleep -Seconds $monitorTime
+    }
+
+}
+
+
+db2 +c -tvf $scriptRoot/db2monAfter.sql
+
+db2 -v commit work
+db2 -v connect reset
+db2 -v connect to $dbName
+
+db2 -v drop tablespace db2montmptbsp
+db2 -v drop bufferpool db2monbp
+
+db2 -v connect reset