Rename LIF using Update-NcNetInterface Fails [ Edited ]

[#1]

Trying to rename the node management LIFs using Update-NcNetInterface but it does not rename the lif even though it reports a success count of 1.

PS C:\> $q = get-NcNetInterface -Template
PS C:\> $q.InterfaceName = "CLUSTER-01_mgmt1"
PS C:\> $a = Get-NcNetInterface -Template
PS C:\> $a.InterfaceName = "CLUSTER-A_mgmt"
PS C:\> Update-NcNetInterface -Query $q -Attributes $a

NcController : xx.xx.xx.xx
SuccessCount : 1
FailureCount : 0
SuccessList : {CLUSTER-01_mgmt1}
FailureList : {}

I have also attempted this on data lifs with the same result so it's not specific to management lifs.  Also tried setting the AdministrativeStatus to "down" prior to rename - same result.

Renaming the LIF from the CLI works perfectly!

Could make a new LIF and then delete the old one but this should work.  It sets any other property EXCEPT the InterfaceName and it works from the CLI.

Any ideas?

[#2 · Accepted solution]

Hi John,

I suspect it's because it may require shell access to rename the node management LIF and the PowerShell CmdLets invoke ZAPI's instead of shell commands.

You can use the Invoke-NcSsh CmdLet. Here is an example of a WFA command i wrote to rename a logical interface name:

Param(
   [Parameter(Mandatory=$True, HelpMessage="The hostname or IP Address of the cluster")]
   [String]$ClusterName,
   [Parameter(Mandatory=$True, HelpMessage="The name of the vserver")]
   [String]$VserverName,
   [Parameter(Mandatory=$True, HelpMessage="The name of the logical interface to rename")]
   [String]$LogicalInterfaceName,
   [Parameter(Mandatory=$True, HelpMessage="The new name of the logical interface")]
   [String]$NewLogicalInterfaceName     
)
#'------------------------------------------------------------------------------
#'Connect to the cluster
#'------------------------------------------------------------------------------
Get-WFALogger -Info -Message "Renaming logical interface ""$LogicalInterfaceName"" to ""$NewLogicalInterfaceName"" on vserver ""$VserverName"" on cluster ""$ClusterName"""
Connect-WFACluster $ClusterName
#'------------------------------------------------------------------------------
#'Ensure the logical interface exists.
#'------------------------------------------------------------------------------
$attributes = Get-NcNetInterface -Template
$attributes.InterfaceName = ""
Try{
   $interface = Get-NcNetInterface -Name $LogicalInterfaceName -Vserver $VserverName -Attributes $attributes -ErrorAction Stop
   [String]$lifName = $interface.InterfaceName
   Get-WFALogger -Info -Message "Enumerated logical interface ""$LogicalInterfaceName"" on vserver ""$VserverName"""
}Catch{
   Get-WFALogger -Error -Message $("Failed enumerating logical interface ""$LogicalInterfaceName"" on vserver ""$VserverName"". Error " + $_.Exception.Message)
   Throw "Failed enumerating logical interface ""$LogicalInterfaceName"" on vserver ""$VserverName"""
}
If($lifName -eq "" -Or $lifName -eq $Null){
   Throw "The logical interface ""$LogicalInterfaceName"" on vserver ""$vserverName"" does not exist"
}
#'------------------------------------------------------------------------------
#'Rename the logical interface using SSH.
#'------------------------------------------------------------------------------
[String]$command = "network interface rename -vserver $VserverName -lif $LogicalInterfaceName -newname $NewLogicalInterfaceName"
Try{
   Invoke-NcSsh -Command $command -ErrorAction Stop
   Get-WFALogger -Info -Message "Executed command`: $command"
}Catch{
   Get-WFALogger -Error -Message $("Failed executing command`: $command. Error " + $_.Exception.Message)
   Throw "Failed renaming network interface ""$LogicalInterfaceName"" to ""$NewLogicalInterfaceName"""
}
#'------------------------------------------------------------------------------
#'Enumerate the logical interface after it has been renamed.
#'------------------------------------------------------------------------------
$attributes = Get-NcNetInterface -Template
$attributes.InterfaceName = ""
Try{
   $interface = Get-NcNetInterface -Name $NewLogicalInterfaceName -Vserver $VserverName -Attributes $attributes -ErrorAction Stop
   [String]$lifName = $interface.InterfaceName
   Get-WFALogger -Info -Message "Enumerated logical interface ""$NewLogicalInterfaceName"" on vserver ""$VserverName"""
}Catch{
   Get-WFALogger -Error -Message $("Failed enumerating logical interface ""$NewLogicalInterfaceName"" on vserver ""$VserverName"". Error " + $_.Exception.Message)
   Throw "Failed enumerating logical interface ""$NewLogicalInterfaceName"" on vserver ""$VserverName"""
}
#'------------------------------------------------------------------------------
#'Ensure the logical interface has been renamed.
#'------------------------------------------------------------------------------
If($NewLogicalInterfaceName -ne $lifName){
   Throw "Failed renaming logical interface ""$LogicalInterfaceName"" to ""$NewLogicalInterfaceName"" on vserver ""$VserverName"""
}Else{
   Get-WFALogger -Info -Message "The logical interface ""$LogicalInterfaceName"" has been renamed to ""$NewLogicalInterfaceName"" on vserver ""$VserverName"""
}
#'------------------------------------------------------------------------------

Here is an example of the logs:

10:03:04.498 INFO  [rename_logical_interface] ### Command 'rename_logical_interface' in 'POWER_SHELL' ###
10:03:08.217 INFO  [rename_logical_interface] Renaming logical interface "vserver1_cifs_lif2" to "vserver1_cifs_lif3" on vserver "vserver1" on cluster "cluster1.testlab.local"
10:03:08.280 INFO  [rename_logical_interface] Get-WfaCredentials -Host cluster1.testlab.local
10:03:08.327 INFO  [rename_logical_interface] Credentials successfully provided for 'cluster1.testlab.local'
10:03:08.342 INFO  [rename_logical_interface] Connect-Controller -Type CLUSTER -Name cluster1.testlab.local -Credential System.Management.Automation.PSCredential -Vserver  -Timeout 60000
10:03:08.389 INFO  [rename_logical_interface] Connect-NcController (with credentials) -Name cluster1.testlab.local -Timeout 60000 -ErrorAction Stop
10:03:22.670 INFO  [rename_logical_interface] Connected to cluster node
10:03:23.280 INFO  [rename_logical_interface] Enumerated logical interface "vserver1_cifs_lif2" on vserver "vserver1"
10:03:24.999 INFO  [rename_logical_interface] Executed command: network interface rename -vserver vserver1 -lif vserver1_cifs_lif2 -newname vserver1_cifs_lif3
10:03:25.045 INFO  [rename_logical_interface] Enumerated logical interface "vserver1_cifs_lif3" on vserver "vserver1"
10:03:25.061 INFO  [rename_logical_interface] The logical interface "vserver1_cifs_lif2" has been renamed to "vserver1_cifs_lif3" on vserver "vserver1"
10:03:25.202 INFO  [rename_logical_interface] Command completed, took 20704 milliseconds

Hope that helps

/matt

[#3]

^^

Ok, I will admit I hate the implementation of powershell for cDOT.   I'm a huge fan of powershell on 7-mode, beening using it heavily since 7-mode v1.0.  (Check my post archives)

In my mind, invoke-ncssh is a "patch" on how to run an SSH command.  These should all be done via API with powershell.

There is no reason on my mind we shouldn't be able to do this

get-ncnetinterface | ? {$_.interfacename -eq "blah"} | set-ncnetinterfacen -interfacename "newblah"

I might be ranting a little, but this is my opinion and i'm pretty strong on this.

[#4]

This appears to be a limitation of ZAPI, not the PSTK.  ZAPI uses the vserver + name as the unique identifier for the LIF, and there is no option to change the name.

Andrew

[#5]

I figured as much - even tried using just the IP Address in the query template to get around this - but if ZAPI insists .... well.  Long term this should be worked out without resorting to NcSsh I think.  Especially considering there is a CLI command. Maybe Ontapi 1.40

Thanks Andrew