topic Re: Changing rsh to PowerShell for Win2012 in Microsoft Virtualization Discussions

Changing rsh to PowerShell for Win2012

Jalal_ — Wed, 04 Jun 2025 22:13:00 GMT

Hi,

Can someone please give me tips to change my script from rsh (win2003) to PowerShell!!!?

Function 1:

'############################################################################################
' GetNetAppQuota()
' Ermittelt die insgesamt vergebene Quota (in MB) auf einem NetApp-Server Volume
'############################################################################################
Private Function GetNetAppQuota(lstrServer, lstrVolume)

   On Error Resume Next
   GetNetAppQuota = 0

   Dim lWshShell, loExec
   Dim lstrLine, lsz1
   Dim lnQuota

   If bDebug Then Call Logging("GetNetAppQuota().Param: " & lstrServer &", "& lstrVolume)

   set lWshShell = CreateObject("WScript.Shell")

   lsz1 = ""
   Set loExec = lWshShell.Exec (Join(Array("rsh", lstrServer, "-n", "quota report")))
   Do While Not loExec.StdOut.AtEndOfStream
       lstrLine = MyTrimSpaces(replace(loExec.StdOut.ReadLine, vbCr, ""))
       'wscript.echo lstrLine
       lsz1 = split(lstrLine, " ")
       if lsz1(0) <> "K-Bytes" And lsz1(0) <> "Type" And lsz1(0) <> "-----" And lsz1(1) <> "*" then
           if lsz1(2) = lstrVolume then lnQuota = lnQuota + lsz1(5) / 1024
       end if
   Loop

   GetNetAppQuota = lnQuota

   If bDebug Then Call Logging("GetNetAppQuota().Return: " & GetNetAppQuota)

End Function

################################################

Function 2:

'############################################################################################
Private Function ExecRsh (host, cmd)
   On Error Resume Next
   Dim WshShell

   If bDebug Then Call Logging("ExecRsh().Param: " & host & ", " & cmd)

   Set WshShell = CreateObject("WScript.Shell")
   if bDebug then Call Logging("ExecRsh().exec: " & Join(Array("rsh", host, "-n", cmd)))
   Set ExecRsh = WshShell.Exec (Join(Array("rsh", host, "-n", cmd)))
   Set WshShell = Nothing

   If bDebug Then Call Logging("ExecRsh().Return: " & ExecRsh)

End Function

#######################################################

Thanks

Jalal_

Re: Changing rsh to PowerShell for Win2012

JGPSHNTAP — Thu, 28 Jan 2016 18:41:47 GMT

Well, this isn't that hard, but you have to start be reading the getting started with powershell documentation.

RSH should be eliminated at all cause b/c of the massive security hole, so you are going down the correct route..

I'm not going to write it before you, but you can get started by reading the help for the powershell toolkit

Connect to controllers via https or rpc with connect-nacontroller

Also,

For any help, you can do get-nahelp *quota*

Re: Changing rsh to PowerShell for Win2012

asulliva — Fri, 29 Jan 2016 01:51:49 GMT

Hello @Jalal_,

As @JGPSHNTAP mentioned, be sure to give the docs a read. Once you install the NetApp PowerShell Toolkit you can access the cmdlet documentation with the command "Show-NcHelp" (or Show-NaHelp for 7-mode). This makes all the cmdlet definitions, examples, etc. available in HTML format.

The first script you have is simply doing a "quota report" against your storage system. There are two ways you can do this: 1) use "Invoke-NcSsh" (or Invoke-NaSsh if using 7-mode) to execute the same "quota report" command against the system and parse the result in PowerShell vs VBscript, or 2) use the quota cmdlets...Get-NcQuotaReport (or Get-NaQuotaReport if 7-mode) to get the information. I believe that the entire first function can be replaced by this...but it's hard to tell without knowing 7-mode vs clustered or what the expected output is.

(Measure-Object -Sum (Get-NcQuotaReport).DiskUsed).Sum / 1024

The second function will simply execute any command against the controller using rsh. This can be replaced using the above mentioned "Invoke-NcSsh" (or Inovke-NaSsh for 7-mode).

Hope that helps.

Andrew

Re: Changing rsh to PowerShell for Win2012

Jalal_ — Fri, 29 Jan 2016 12:44:38 GMT

Is there an example for my functions

Re: Changing rsh to PowerShell for Win2012

asulliva — Sun, 31 Jan 2016 19:37:57 GMT

Not sure what type of example you're looking for. Your "ExecRsh" can be replaced by the "Invoke-NcSsh" (or "Invoke-NaSsh" for 7-mode), but it's not a 1-for-1...you will need to do some updates to the script which is calling the fuction, the first being convert it from VBscript to PowerShell.

The other function I gave an example of in the other response...it all depends on what output you're looking for.

Andrew