Scripting Load Evaluators, in the Scripting / Automation forum on BrianMadden.com

Is there anyway to script Load Evaluators?

I found a script to remove all published apps and add back all published apps but this process removes all Load Evaluators. Does anyone have an idea on where those values are stored on a server or if there is a MFCOM method to this?

I found the IMetaFrameLoadevaluator object...currently developing a GUI front end in VB.NET

If anyone is interested in a VB.NET application that allows you to add/remove servers and load evaluators to published apps with a click of a button, please email me at brian.cahill@qg.com. I will have to tailor it to your environment but it works pretty well. It is much better than clicking through the CMC...tested on Presentation Server 3.0 running on Windows 2003

[&o]
Good Morning,

I'm french, so please escuse me for my English....
Where can I found information on IMetaFrameLoadEvaluator object.
I want to programm an automate which list me the Load Manager "Calculator" and their properties.

Thanks.

this will list out all Load Evaluators in the farm:

Dim mfFarm


 Dim mfLE


     


     Set mfFarm = CreateObject("MetaFrameCOM.MetaFrameFarm")


     mfFarm.Initialize 1


     


     For Each mfLE In mfFarm.LoadEvaluators


         mfLE.LoadData 1


 	


 	WScript.Echo "Load Evaluator Name - " & mfLE.LEName


 


     Next

Is there a way to apply a load evaluator to a server from a command line?
I have a load evaluator that puts a server in "maintenance mode" (reports full loaded) so no-one cant connect, and would like to be able to apply it from a script, if e.g. IMA stops responding.

regards/

I have been trying to grab load evaluators applied to servers.
e.g. when querying each server in the farm, return the applied load evaluator for that server. We use the scheduling to offline servers. I would like to run a report each morning to ensure we know exactly which servers we offlined by checking the applied LE on each one.
Here is the piece i am trying to make work. Returning the LEName is the tricky one...

For Each aZone In theFarm.Zones
WScript.Echo "ZoneName : " & aZone.ZoneName
WScript.Echo "DataCollector : " & aZone.DataCollector
WScript.Echo "All Servers in the zone: "
For Each aServer In aZone.Servers
Set theFarmLE = CreateObject("MetaFrameCOM.MetaFrameLoadEvaluator")
theFarmLE.AttachToServerByName True,aServer.ServerName
wscript.Echo theFarmLE.LEName
Next
Next
Does anyone have any suggestions?

Thanks,
Chris

[quote=Rene Kierstein] Is there a way to apply a load evaluator to a server from a command line?
I have a load evaluator that puts a server in "maintenance mode" (reports full loaded) so no-one cant connect, and would like to be able to apply it from a script, if e.g. IMA stops responding.

regards/

[/quote]

I am looking to perform the same type of task. Has anyone found a command line to apply load evaluators?

Thanks

use server object to do this. make sure you give Load Evaluator exactly as it is in CMC.

So I am clear.. you have a load evaluator.. you just want to assign a machine to it at the cmdline.. is that correct?

If you dont mind using powershell... this work exactly how I understand you want

Add this to your profile.
function Get-CitrixServer{
Param($Server)
$type = [System.Type]::GetTypeFromProgID("MetaframeCOM.MetaframeServer",$Server)
$mfServer = [system.Activator]::CreateInstance($type)
$mfServer.Initialize(6,$Server)
$mfServer
}

Anytime you want to add the load Evaluator just type
PS> (get-citrixserver Server1).AttachLEByName('LEName')

If you like this and want more info... just let me know.

I will have to look into PowerShell. I don't believe we currently have it in our infrastructure. With this, would I be able to apply the load evaluator via a script?

Yes! Not only will you be able to run a script, if you wish, you can even do it interactively.

Here is example
---------------
PS> $myserver = Get-CitrixServer ServerName
PS> $myserver.AttachLEByName('LEName')
do your testing
PS> $myserver.AttachLEByName('OrginalName')

You may also be shocked at what you can get to on $myserver. Do the following to look at the object properties you see.
PS> $myserver | get-member

The great benefit from Powershell over other scripting langauges is that its interative and you get access to objects at the command shell layer.

Check out the script below. Hope this helps.

' __________________________________________________________________


'


' Script Name:  AttachLE.vbs


'


' Purpose:      Attaches a load evaluator to a Citrix farm server.


'


' Syntax:       attachle servername lename


'


'                 servername     The farm server's computer name.


'                 lename         The load evaluator's name.


'


' Author/Email : Frank-Peter Schultze


' Last Update  : 05-Mar-2007


' __________________________________________________________________


'


If (WScript.Arguments.Count <> 2) Then


    WScript.Echo "Attaches a load evaluator to a Citrix farm server."


    WScript.Echo ""


    WScript.Echo WScript.ScriptName & " servername lename"


    WScript.Echo ""


    WScript.Echo "  servername     The farm server's computer name."


    WScript.Echo "  lename         The load evaluator's name."


    WScript.Quit


End If


strFarmServer = WScript.Arguments(0)


strLEName = WScript.Arguments(1)


Set objFarm = CreateObject("MetaFrameCOM.MetaFrameLoadEvaluator")


objFarm.LEName = strLEName


objFarm.LoadData(True)


objFarm.AttachToServerByName False, strFarmServer


objFarm.SaveData()


Set objFarm = Nothing