Hi Philip,
Here is an example of some error handling and logging functions that will add timestamps to help troubleshoot the issue.
The following example scripts does the following:
- Accepts an input parameter for the cluster name to connect
- Prompts for credentials to connect to the cluster
- Imports the DataONTAP module
- Attempts to connect to the cluster via HTTPS
- Logs the result to the scripts working directory
A successful connection is logged to a .log file in YYYY-MM-DD format. Any errors are logged to a .err file
#'------------------------------------------------------------------------------
Param(
[Parameter(Mandatory=$True, HelpMessage="The hostname or IP Address of the cluster to connect to")]
[String]$ClusterName
)
#'------------------------------------------------------------------------------
Function Get-IsoDateTime{
<#
.SYNOPSIS
This Function enumerates the date and time in ISO format.
.DESCRIPTION
Returns a date time in the form of "YYYY-MM-DD HH:MM:SS".
.EXAMPLE
Get-IsoDateTime
#>
Return (Get-IsoDate) + " " + (Get-IsoTime)
}#End Function
#'------------------------------------------------------------------------------
Function Get-IsoDate{
<#
.SYNOPSIS
This Function enumerates the date in ISO format.
.DESCRIPTION
Returns a date in the format of "YYYY-MM-DD".
.EXAMPLE
Get-IsoDate
#>
Return Get-Date -uformat "%Y-%m-%d"
}#End Function
#'------------------------------------------------------------------------------
Function Get-IsoTime{
<#
.SYNOPSIS
This Function enumerates the time in ISO format.
.DESCRIPTION
Returns a time in the format of "HH:MM:SS".
.EXAMPLE
Get-IsoTime
#>
Return Get-Date -uformat "%H:%M:%S"
}#End Function
#'------------------------------------------------------------------------------
Function Append-Message{
<#
.SYNOPSIS
This function appends a message to log file based on the message type.
.DESCRIPTION
Appends a message to a log a file.
.PARAMETER
Accepts an integer representing the log file extension type
.PARAMETER
Accepts a string value containing the message to append to the log file.
.EXAMPLE
Append-Message -logType 0 -message "Command completed succuessfully"
.EXAMPLE
Append-Message -logType 2, -message "Application is not installed"
#>
[CmdletBinding()]
Param(
[Parameter(Position=0,
Mandatory=$True,
ValueFromPipeLine=$True,
ValueFromPipeLineByPropertyName=$True)]
[Int]$LogType,
[Parameter(Position=1,
Mandatory=$True,
ValueFromPipeLine=$True,
ValueFromPipeLineByPropertyName=$True)]
[String]$Message
)
Switch($logType){
0 {$extension = "log";}
1 {$extension = "err";}
2 {$extension = "err";}
3 {$extension = "csv";}
default {$extension = "log"}
}
If($logType -eq 1){
$message = ("Error`: " + $error[0].Exception.Message + ". Code`: " + $error[0].Exception.ErrorCode + ". Message`: " + $Message)
}
$prefix = Get-IsoDateTime
Try{
($prefix + "," + $message) | Out-File -filePath `
($scriptLogPath + "." + $extension) -encoding ASCII -Append -ErrorAction SilentlyContinue
}Catch{
Break;
}
}#End Function
#'------------------------------------------------------------------------------
#'Initialization Section. Define Global Variables.
#'------------------------------------------------------------------------------
[String]$scriptPath = Split-Path($MyInvocation.MyCommand.Path)
[String]$scriptSpec = $MyInvocation.MyCommand.Definition
[String]$scriptBaseName = (Get-Item $scriptSpec).BaseName
[String]$scriptName = (Get-Item $scriptSpec).Name
[String]$scriptLogPath = $scriptPath + "\" + (Get-IsoDate)
#'------------------------------------------------------------------------------
Import-Module -Name DataONTAP -ErrorAction SilentlyContinue
$credentials = $host.ui.PromptForCredential("Connect to Cluster ""$ClusterName""", "Please enter the user name and password", "admin", "")
Try{
Connect-NcController -Name $clusterName -HTTPS -Credential $credentials -ErrorAction Stop
Append-Message 0 "Connected to ""$clusterName"""
}Catch{
Append-Message 1 "Failed connecting to cluster ""$clusterName"""
Exit -1
}
#'------------------------------------------------------------------------------An example of running the script:
PS C:\Scripts\PowerShell\Projects\ConnectCluster> .\ConnectCluster.ps1 -ClusterName cluster1.testlab.local
An example of the log files for both successful and unsuccessful connections:
C:\Scripts\PowerShell\Projects\ConnectCluster>dir /b
2016-09-30.err
2016-09-30.log
ConnectCluster.ps1
C:\Scripts\PowerShell\Projects\ConnectCluster>type 2016-09-30.log
2016-09-30 14:58:01,Connected to "cluster1.testlab.local"
C:\Scripts\PowerShell\Projects\ConnectCluster>type 2016-09-30.err
2016-09-30 14:59:35,Error: No such host is known. Code: 11001. Message: Failed connecting to cluster "cluster10.testlab.local"
By logging the value of the "$error[0].Exception.ErrorCode" it might help to identify the cause of the issue.
Also If you look at the Methods for the "$error[0].Exception" object you'll notice you can do a stacktrace which might be useful. EG
PS C:\Scripts\PowerShell\Projects\ConnectCluster> $error[0].Exception | Get-Member
TypeName: System.Net.Sockets.SocketException
Name MemberType Definition
---- ---------- ----------
Equals Method bool Equals(System.Object obj), bool _Exception.Equals(System.Object obj)
GetBaseException Method System.Exception GetBaseException(), System.Exception _Exception.GetBaseException()
GetHashCode Method int GetHashCode(), int _Exception.GetHashCode()
GetObjectData Method void GetObjectData(System.Runtime.Serialization.SerializationInfo info, System.Runtime.S...
GetType Method type GetType(), type _Exception.GetType()
ToString Method string ToString(), string _Exception.ToString()
Data Property System.Collections.IDictionary Data {get;}
ErrorCode Property int ErrorCode {get;}
HelpLink Property string HelpLink {get;set;}
HResult Property int HResult {get;}
InnerException Property System.Exception InnerException {get;}
Message Property string Message {get;}
NativeErrorCode Property int NativeErrorCode {get;}
SocketErrorCode Property System.Net.Sockets.SocketError SocketErrorCode {get;}
Source Property string Source {get;set;}
StackTrace Property string StackTrace {get;}
TargetSite Property System.Reflection.MethodBase TargetSite {get;}
PS C:\Scripts\PowerShell\Projects\ConnectCluster> $error[0].Exception.SocketErrorCode
HostNotFound
PS C:\Scripts\PowerShell\Projects\ConnectCluster> $error[0].Exception.ErrorCode
11001
PS C:\Scripts\PowerShell\Projects\ConnectCluster> $error[0].Exception.StackTrace
at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)
at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
at NetApp.Ontapi.NaServer..ctor(String name, String uri, Int32 port)
at NetApp.Ontapi.Filer.C.NcController..ctor(String hostName)
at DataONTAP.C.PowerShell.SDK.ConnectNcController.ProcessRecord(String name)
at DataONTAP.C.PowerShell.SDK.ConnectNcController.ProcessRecord()
at System.Management.Automation.CommandProcessor.ProcessRecord()I know this doesn't answer your question as to why the connection is failing but hopefully this information will be helpful to troubleshoot and identify the root cause of the issue for you.
Cheers
/Matt
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