Adding a loop

[Beansley]

Hello,

I've got yet another issue with creating a loop around some simple code - always seems to get me.  If I use the code found here http://communities.vmware.com/message/1850265#1850265  at a pCLI prompt, everything works as advertised.  Then I try to structure a loop around it and it blows up.  Here's my script:

get-vmhost -location "cluster name" | foreach-object {
$esxcli = Get-EsxCli -VMHost $_
$esxcli.system.coredump.network.set($null,"vmk0","x.x.x.x",6500)
$esxcli.system.coredump.network.set(1)
$esxcli.system.coredump.network.get()

}

The problem seems to be my use of $_ (the code is not making a substitution for the $_), but I've no idea how to get around it.

thanks

Dave

[LucD]

Are you sure that

get-vmhost -location "cluster name"

is returning objects ?

The $_ should give you the VMHost object in the foreach code block.

[Beansley]

Are you sure that

      get-vmhost -location "cluster name"

is returning objects ?

Yes.  I set up a variable at a prompt like such:

$a = get-vmhost -location "cluster name"

then gave the prompt

$a

and it listed hosts in the cluster.  I went down the path of referencing $_.name (vs. just $_) and passed that through the loop - didn't help (probably made matters worse, actually ):smileywink: .

Then I performed

$a | get-member just to be sure it was returning what appears to be hosts.  Sure looks like it is.

[LucD]

I tried your code in several variations...and it just works for me :smileyconfused:

From where are you running the code ? From the PowerCLI prompt ? Or a Gui ?

Can you try this

get-vmhost -location "cluster name" | foreach-object {
    $_.GetType().Name
}

and see if it returns the VMHost object name ?

To make sure there is nothing going wrong while copying the code, I attached the same lines as a file.

[Beansley]

Can you try this

get-vmhost -location "cluster name" | foreach-object {

    $_.GetType().Name

}

and see if it returns the VMHost object name ?

It lists them as

VMHostImpl
VMHostImpl

which I suppose is to be expected (2 entries to reflect the 2 hosts in my test cluster).

[LucD · Accepted solution]

Ok, one step further.

Try this

get-vmhost -location "cluster" | foreach-object {
    $esxcli = Get-EsxCli -VMHost $_
    $esxcli.system.coredump.network.get()
}

Which PowerCLI version are you using ?

Do a

Get-PowerCLIVersion

Before PowerCLI 5.x you had to do a Connect-VIServer to the ESX(i) host for the Get-EsxCli cmdlet.

[Beansley]

PowerCLI 5.0 build 435427

I typically make the server connection before I run code manually, which is the case here.

You provided code errors in the same manner my script does:

"Cannot complete the operation due to an incorrect request to the server
At script.ps1:9 char 25
+    $esxcli = Get-EscCli <<<< -VMhost $_

<<additional text omitted>> "

Thanks for looking at this.

Dave

[LucD]

You must be using a vCenter 5.x and running the script against ESX(i) 4.x hosts ?

No, I'm not clairvoyant

I suspect you are encountering a known issue that is documented in the CLI 5 release notes.

[Beansley]

You nailed it.  I've just about completed the upgrade to 5, with the exception of my legacy test cluster, which will be decommed shortly.  My script runs great on a real cluster.

I'd say that's a good gotcha to look out for if you're in a mixed environment.

Thanks for your time, LucD!