reboot host + check

[RobMokkink]

I am performing some configuration settings on all the esx servers.

I perform the configuration change on one server at a time. The server is first put in maintenance mode and then the settings are changed.

After that they get rebooted.

The problem is that when i initiate the reboot, i wan't to verify that the server is notresponding, so that the script has to wait before it continues, then there is a loop that verifies the server i back online again and get's it out of maintenance mode.

The only problem is am facing is that when in reboot the server my session dies.

Here is the code:

#REBOOT THE SERVER

#WAIT UNTIL IT CAN'T BE CONTACTED

$esx.RebootHost($true)

#LOOP

$DISCONNECT = $False

Do

{

$GETHOST = get-vmhost | where {$_.name -eq $ESXHOST}

$GETSTATE = $GETHOST.State

if ($GETSTATE -eq "NotResponding")

{

$DISCONNECT = $True

}

else

{

$DISCONNECT = $False

}

}until($DISCONNECT -eq $True)

#WAIT UNTIL IT'S BACK ONLINE AGAIN

#LOOP UNTIL THE ESX SERVER IS BACK ONLINE

$CONNECT = $False

Do

{

$GETHOST = get-vmhost $ESXHOST

$GETSTATE = $GETHOST.State

if ($GETSTATE -eq "Maintenance" -or $GETSTATE -eq "CONNECTED")

{

$CONNECT = $True

}

else

{

$CONNECT = $False

}

}until($CONNECT -eq $True)

#GET THE HOST OUT OF MAINTENANCE

$esx = Get-VMHost $ESXHOST | Get-View

$taskMoRef = $esx.ExitMaintenanceMode_Task(0)

$task = Get-View $taskMoref

while ($task.info.state -eq "running" -or $task.info.state -eq "queued")

{

sleep 2

$task = Get-View $taskMoref

}

Who has the solution?

[yboychev]

I use a function similar to this:

function WaitServerToStart($server, $seconds, $credentials) {

#'Stop' preference with trap block is used instead of 'Continue' preference assuming all the non-terminating errors will terminate Connect-VIServer command without returning value for $conn. We want to prevent a behaviour like this: Connect-VIServer both returns value for $conn and throws non-terminating error and then exit normally from the for cycle.

$ErrorActionPreference = 'Stop'

$succeed = $false

for ($i = 0; $i -lt ($seconds/10); $i++) {

Start-Sleep -s 10

trap {

continue

}

$conn = Connect-VIServer -Server $server.Name -Credential $credentials

#if there is no error the $conn will be not null

if ($conn -ne $null) {

$succeed = $true

break;

}

}

#restore the old preference and $error variable.

if ($succeed) {

Write-Host "Successfully restored server: $($server.Name)"

} else {

throw "The server: $($server.Name) not restored"

}

}

Then I execute the function like this: WaitServerToStart $vmHostObject 360 $vmHostCredentialsObject

\Yavor

[RobMokkink]

Hi Yboychev,

Thanks for your response.

I found what the problem is. I use a connect statement to connect to the esx host, because i have to be connected to the esxhost to use the Get-VMhostModule and Set-VMhostModule.

I put in an extra disconnect-viserver to disconnect from the esx host.

[RobMokkink]

I fixed it.

I created a seperate function to connect to the esx host and change the settings. In the main loop the connection to vcenter stays alive and it works perfectly.