Labels

Tuesday, August 11, 2009

VMware PowerCLI - Reconfigure cluster options

The following script contains a simple example of how to modify the configuration of a cluster – in this case to add two advanced options to the HA settings. This uses the new ClusterConfigSpecEx object, which can be used with the more generic function to reconfigure a resource – ReconfigureComputeResource().

The options set in this example are the das.allowNetworkX options, configuring HA to set specific management networks/service consoles that are used for HA communication and heartbeats.

Consider the following scenario for a reason why you might want to use these options:

  1. Software iSCSI with ESX 3.x – using the service console for authentication, meaning you need a service console on your iSCSI network (or routes between your corporate network and iSCSI). The standard result is that HA could be used across this interface.
  2. You are progressing with an upgrade to ESXi 4.0, still using software iSCSI, which is improved to remove the need for a management interface on your iSCSI network
  3. You put an ESX 3.5 and ESXi 4.0 host in the same cluster, HA no longer works because your iSCSI service console on ESX 3.5 can’t talk to your ESXi 4.0 host.
  4. Adding the two options above (with names changed appropriately) would force HA to use the service console on ESX 3.5 and the equivalent management network on ESXi 4.0, ignoring the iSCSI service console on 3.5 - resolving HA issues.



# http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/vim.ComputeResource.html#reconfigureEx
# http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/vim.cluster.DasConfigInfo.html#field_detail

param (
    $vcServerName = ""
)

$viServer = Connect-VIServer -server $vcServerName

$optionValue = New-Object Vmware.Vim.OptionValue
$optionValue.Key = "das.allowNetwork0"
$optionValue.Value = "Service Console"

$optionValue2 = New-Object Vmware.Vim.OptionValue
$optionValue2.Key = "das.allowNetwork1"
$optionValue2.Value = "Management Network"

[Vmware.Vim.OptionValue[]]$optionValues = $optionvalue, $optionValue2  # Create the array of the two new option values

$cluster = get-cluster -Name 'Cluster01'     # Get the cluster
$clusterview = get-view $cluster.Id      # Get the SDK object from the PowerCli object MO

$spec = New-Object Vmware.Vim.ClusterConfigSpecEx
$spec.dasConfig = New-Object Vmware.Vim.ClusterDasConfigInfo   # New VMware HA config

$spec.dasConfig.option = $optionValues      # Add the array of optionValues
$clusterview.ReconfigureComputeResource($spec, $true)    # Modify the configuration. When configuring clusters, can be a ClusterConfigSpecEx object


# Check the settings were saved

$cluster = get-cluster -Name 'Cluster01'     # Get the cluster
$clusterview = get-view $cluster.Id      # Get the SDK object from the PowerCli object MO

$clusterview.Configuration.dasConfig.Option | format-list   # Retrieve the advanced options


Wayne's World of IT (WWoIT), Copyright 2009 Wayne Martin. 

No comments:


All Posts

printQueue AD objects for 2003 ClusterVirtualCenter Physical to VirtualVirtual 2003 MSCS Cluster in ESX VI3
Finding duplicate DNS recordsCommand-line automation – Echo and macrosCommand-line automation – set
Command-line automation - errorlevels and ifCommand-line automation - find and findstrBuilding blocks of command-line automation - FOR
Useful PowerShell command-line operationsMSCS 2003 Cluster Virtual Server ComponentsServer-side process for simple file access
OpsMgr 2007 performance script - VMware datastores...Enumerating URLs in Internet ExplorerNTLM Trusts between 2003 and NT4
2003 Servers with Hibernation enabledReading Shortcuts with PowerShell and VBSModifying DLL Resources
Automatically mapping printersSimple string encryption with PowerShellUseful NTFS and security command-line operations
Useful Windows Printer command-line operationsUseful Windows MSCS Cluster command-line operation...Useful VMware ESX and VC command-line operations
Useful general command-line operationsUseful DNS, DHCP and WINS command-line operationsUseful Active Directory command-line operations
Useful command-linesCreating secedit templates with PowerShellFixing Permissions with NTFS intra-volume moves
Converting filetime with vbs and PowerShellDifference between bat and cmdReplica Domain for Authentication
Troubleshooting Windows PrintingRenaming a user account in ADOpsMgr 2007 Reports - Sorting, Filtering, Charting...
WMIC XSL CSV output formattingEnumerating File Server ResourcesWMIC Custom Alias and Format
AD site discoveryPassing Parameters between OpsMgr and SSRSAnalyzing Windows Kernel Dumps
Process list with command-line argumentsOpsMgr 2007 Customized Reporting - SQL QueriesPreventing accidental NTFS data moves
FSRM and NTFS Quotas in 2003 R2PowerShell Deleting NTFS Alternate Data StreamsNTFS links - reparse, symbolic, hard, junction
IE Warnings when files are executedPowerShell Low-level keyboard hookCross-forest authentication and GP processing
Deleting Invalid SMS 2003 Distribution PointsCross-forest authentication and site synchronizati...Determining AD attribute replication
AD Security vs Distribution GroupsTroubleshooting cross-forest trust secure channels...RIS cross-domain access
Large SMS Web Reports return Error 500Troubleshooting SMS 2003 MP and SLPRemotely determine physical memory
VMware SDK with PowershellSpinning Excel Pie ChartPoke-Info PowerShell script
Reading web content with PowerShellAutomated Cluster File Security and PurgingManaging printers at the command-line
File System Filters and minifiltersOpsMgr 2007 SSRS Reports using SQL 2005 XMLAccess Based Enumeration in 2003 and MSCS
Find VM snapshots in ESX/VCComparing MSCS/VMware/DFS File & PrintModifying Exchange mailbox permissions
Nested 'for /f' catch-allPowerShell FindFirstFileW bypassing MAX_PATHRunning PowerSell Scripts from ASP.Net
Binary <-> Hex String files with PowershellOpsMgr 2007 Current Performance InstancesImpersonating a user without passwords
Running a process in the secure winlogon desktopShadow an XP Terminal Services sessionFind where a user is logged on from
Active Directory _msdcs DNS zonesUnlocking XP/2003 without passwords2003 Cluster-enabled scheduled tasks
Purging aged files from the filesystemFinding customised ADM templates in ADDomain local security groups for cross-forest secu...
Account Management eventlog auditingVMware cluster/Virtual Center StatisticsRunning scheduled tasks as a non-administrator
Audit Windows 2003 print server usageActive Directory DiagnosticsViewing NTFS information with nfi and diskedit
Performance Tuning for 2003 File ServersChecking ESX/VC VMs for snapshotsShowing non-persistent devices in device manager
Implementing an MSCS 2003 server clusterFinding users on a subnetWMI filter for subnet filtered Group Policy
Testing DNS records for scavengingRefreshing Computer Account AD Group MembershipTesting Network Ports from Windows
Using Recovery Console with RISPAE Boot.ini Switch for DEP or 4GB+ memoryUsing 32-bit COM objects on x64 platforms
Active Directory Organizational Unit (OU) DesignTroubleshooting computer accounts in an Active Dir...260+ character MAX_PATH limitations in filenames
Create or modify a security template for NTFS perm...Find where a user is connecting from through WMISDDL syntax in secedit security templates

About Me

I’ve worked in IT for over 20 years, and I know just about enough to realise that I don’t know very much.