Snapshots for virtual machines fault-tolerant
VSphere availability guide says that you can not fault tolerant VMs snapshot. Otherwise, how would a backup virtual machines?
If you need to snap for backup, you can stop FT, do the blink of an eye, make the backup, delete the snap and reactivate FT.
You cannot schedule directly (in the special section), but there are useful scripts that can toggle pi of CLI.
André
Tags: VMware
Similar Questions
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Folder path as a VM property - for virtual machines in a paralytic
Hello
I used the new-viproperty of LucD script to create a folder for each virtual computer property in my inventory. It works perfectly well for virtual machines, but not for virtual machines in a paralytic as these do not have a 'record' in powercli property. they report a $null value.
Would be much appreciated if someone can help me to modify this script so it creates a VM property for the VMS and VMs in a paralytic?
http://www.lucd.info/2012/05/18/folder-by-path/
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New-VIProperty
-Name
'BlueFolderPath'
-ObjectType
'VirtualMachine'
-Value
{
param
(
$vm
)
function
Get-ParentName
{
param
(
$object
)
if
(
$object
.Folder){
$blue
=
Get-ParentName
$object
.Folder
$name
=
$object
.Folder.Name
}
elseif
(
$object
.Parent
-and
$object
.Parent.GetType().Name
-like
"Folder*"
){
$blue
=
Get-ParentName
$object
.Parent
$name
=
$object
.Parent.Name
}
elseif
(
$object
.ParentFolder){
$blue
=
Get-ParentName
$object
.ParentFolder
$name
=
$object
.ParentFolder.Name
}
if
(
"vm"
,
"Datacenters"
-notcontains
$name
){
$blue
+
"/"
+
$name
}
else
{
$blue
}
}
(
Get-ParentName
$vm
).Remove(0,1)
}
-Force
|
Out-Null
Check if the new version works for you.
New-VIProperty-name 'BlueFolderPath' - 'VirtualMachine' - value {ObjectType
Param ($VM)
Function Get-ParentName}
Param ($Object)
if($Object.) {Folder)
$blue = get-ParentName $object. Folder
$name = $object. Folder.Name
}
ElseIf($Object.) VApp) {}
$blue = get-ParentName $object. VApp.ExtensionData.ParentFolder
$name = $object. VApp.Name
}
ElseIf ($object - is [VMware.Vim.ManagedObjectReference]) {}
$folder = get-VIObjectByVIView - MORef $object
$blue = get-ParentName $folder. Parent
$name = $folder. Name
}
ElseIf($Object.) Parent - and $object. Parent.GetType (). Name - as a ' file * ') {}
$blue = get-ParentName $object. Parent
$name = $object. Parent.Name
}
ElseIf($Object.) ParentFolder) {}
$blue = get-ParentName $object. ParentFolder
$name = $object. ParentFolder.Name
}
If ("vm", "Data centers" - notcontains $name) {}
$blue + "/" + $name
}
else {}
$blue
}
}
(Get-ParentName $vm). Remove (0.1)
} - Force | Out-Null
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Wonder average CPU for virtual machines
I have a supermetric that gives me the average demand of CPU for virtual machines.
It works as set below:
avgN($R40:A2055,3) / avg($R40:A2030)
R40 is the data center - A2055 is the attribute of MHz CPU demand.
A2030 is powered on virtual machines in the data center.
Is it possible for me to write this formula without having to divide it by the total number of virtual machines in the data center?
Is 'average' looks should do.
Fix.
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Use the diskette of esxi for virtual machines
Hello
I would like to set up a lab and I have hp g6 server but just with a single 600 GB sas disk
is it possible to install esxi on it and also use it as a storage device for virtual machines on?
I know that I can install esxi on a cool drive but if what I've said, it's possible I prefer to use that
Thank you very muchIt's true.
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1 or 2 processors? 32 or 64 bit? for virtual machines
I had a discussion with the network administrator about using 2 processors and OS 64-bit for virtual machines.
It uses 1 proc and 32-bit on Proliant G5 servers for virtual servers ordinary.
When it will be beneficial to use 2 procs and 64 bit?
THX.
Hello.
When it will be beneficial to use 2 procs and 64 bit?
It will be useful to use 64-bit when you have an application that you want to run 64 - bit, and it will be useful to add a second processor when you discover that a vCPU is not enough. If by 'regular' virtual servers, you're talking low-end Windows servers, then the 32-bit single vCPU approach will be generally better. Without knowing more about your applications or operating systems, it is difficult to give a more precise answer.
Why do you think that you might need for 64-bit or 2 vCPUs? Can you elaborate on what you put on foot?
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for vmware esxi fault tolerance specifications 5
Can someone tell me where I can find documents to show me the fault tolerance support in version 5? Are we still liminted to 1vcpu? How many virtual machines can be set to feet?
Hello.
Not much changed. I keep it updated constantly:
Good luck!
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The list of the snapshot active virtual machines
In our environment, we will automation upgrade to new versions of the tests. I need regularly to ensure that virtual machines are running with a snapshot taken at the same time (via PowerCLI, we use the same description).
In other words, is there a way to retrieve the current name of the active snapshot for all virtual machines?
With the help of:
Get-resourcepool 'MyResPool ' | Get - vm | Get-snapshot | Select @{Name = 'The virtual computer name'; Expression = {$_.} UMM name}}, created, name, description. Tri-objet created. Format-Table-auto
Don't highlight that one is active.
A snapshot IsCurrent property tells you if a snapshot is updated. I modified your script to display only active snapshots:
Get-ResourcePool "MyResPool" | ` Get-VM | ` Get-Snapshot | ` Where-Object {$_.IsCurrent} | ` Select @{Name="VM Name";Expression={$_.VM.Name}},Created,Name,Description | ` Sort-Object -Property Created | ` Format-Table -AutoSize
Best regards, Robert
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Cannot snapshot a virtual machine
We run a virtual machine on one of our ESX (vSphere 4 Standard) host in a taking snapshots problem. We get the lovely 'operation is not allowed in the current state' and that's what keeps us save the machine through Veeam. I see a lot of messages for this error but found no which dealt specifically on taking snapshots suggesting just reboot the box. It is a production server, and I was hoping to avoid that if possible. I was wondering if anyone has any ideas or clues as to what might be wrong.
Thank you in advance and here is the message from the vSphere client securely reproducible we get immediately after the launch of the snapshot.
Create instant virtual computer
Annex
The
the operation is
not allowed
in the
current state
.
RX\tmunn
vCenterSvr.rx.umaryland.edu
04/03/2011 09:04:06
04/03/2011 09:04:06
04/03/2011 09:04:07Thank you
Tim Munn
University of Maryland, school of Pharmacy
As you have mentioned, an interesting question
Maybe something was wrong with the virtual machine when reinstalling vCenter. What I would try to do, is to stop the virtual machine, remove the inventory, (do not drive - remove would probably also solve the problem of the snapshot, but certainly not a way you satisfied), remove the ctk file (this serves to changed block tracking and will be recreated when the next backup/snapshot) and then add the virtual machine to inventory again by right-clicking the vmx file. Once that is done, try to set the "Client" virtual CDROM dirve If it works, you may need to reconfigure this machine virtual of Veeam backup too.
André
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VCB backup snapshot or virtual machine?
Hello
Workflow of VCB, I read these procedures frequently and I'm confused by what backup software is stored:
"..... Put the virtual machine snapshot mode and take a snapshot.
.. .Mount snapshot of the VM for the proxy backup (to win)
.. software backup .the performs a regular backup of the snapshot of the virtual machine moving data from backup media... »
So I wonder what backup software is saved: any virtual machine or virtual machine snapshot? and why?
And for linux, it will export (copy) the snapshot of the machine the VCB proxy virtual of the SAN. If a single snapshot is stored to the proxy of VCB mount point, why VCB proxy must have enough space to contain the largest virtual machine?
Can someone give me some clarification?
LAN
To clearify:
In the world of VMware ESX, a snapshot is the same as the 'entire virtual machine' as you say. It's just the disks 'frozen' in a State of know. VCB can then move up and back up this disk (or copy it to the VCB proxy) while the virtual machine is placing the changed data in the temporary file. Some people refer to this temporary file that the file 'snapshot', while the other, see you in the frozen file as the 'snapshot' file, and creates confusion for users/students. A 'snapshot' is simply the functionality described above.
When the backup action is finalized, VCB tells vCenter to "remove the snapshot" which actually means that the data in the temporary file are merged with the 'frozen' disk that is then back 'defrosted' and put into live operation.
/ R
-
Question about snapshots and virtual machines
Hi all
I have a small question about snapshots. I use VMware for about 6 months and I read about snapshots and how they work but still have a question to make sure that I understand how it works and it will work the way I think it works.
I have a Windows 2003 server, which is a virtual machine. I have an application that uses MSDE database. I want to upgrade the database to MS SQL 2005, but to do this I need to back up the MSDE database, uninstall MSDE, and then install SQL 2005 and move the SQL database. This happens on the same VM.
What I was thinking if I well Snapshots correctly is to snap turned the virtual machine before doing anything. Then do my upgrade steps and see if everything works. If its all messed up so I should be able to return to my shot and everything should be the way he had. What is the good? One of the main reasons I moved the server VM was because of this upgrade.
After reading the documentation for the snapshots, it's how I undestood it. Pretty much any change could be reversed with snapshots. I wish just they had put in a few examples in the PDF file. Also it would be the same for all type of grades of the OS? Could I snapshot a Windows 2000 Server, and then "in the upgrade of the square" to Windows 2003? I've cloned a VM to do this but was curious about whether snapshots would be just as easy.
Thanks for your help.
Hello.
What I was thinking if I well Snapshots correctly is to snap turned the virtual machine before doing anything. Then do my upgrade steps and see if everything works. If its all messed up so I should be able to return to my shot and everything should be the way he had. What is the good?
That is right.
After reading the documentation for the snapshots, it's how I undestood it. Pretty much any change could be reversed with snapshots. I wish just they had put in a few examples in the PDF file. Also it would be the same for all type of grades of the OS? Could I snapshot a Windows 2000 Server, and then "in the upgrade of the square" to Windows 2003? I've cloned a VM to do this but was curious about whether snapshots would be just as easy.
Exactly the same thing for the upgrades of the OS.
Perhaps the most important thing with the snapshots is to keep an eye on them and don't let them sit too long or become too big. You have described the use cases are very good uses for snapshots. Just make sure you have a solid plan with a schedule set, so that you can come back or validate changes before the snapshot becomes too large.
Good luck!
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Cartridge and Agents for virtual machine?
Dear Frenz
We would like to monitor a virtual machine (a kind of stuffs process). Hope we can opt for a carton of VMWare meet this requirement. Of more please suggest about the nature of the cartridge (it is deployed on the ESX Server or machine (instance)) virtual individual as well as the exact representative who will be deployed to complete this.
Kind regards
Sundar
We need only read rights in vCenter to a minimum. Nice to have would be view and terminate Sessions, it lets end us our own sessions to vCenter and browse data warehouses, this allows us to browse snapshots via the file structure (the VMware API is notoriously buggy vs the file structure).
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Search for virtual machines with function "Shared Folders" (HGFS) running
I'm looking for advice on creating a script to find all VM with HGFS running, or where the service is actually used.
Apparently, VMware posted the notice of security VMSA-2016-0001 | United States yesterday and my security people are panicking.
Any information you have would be useful.
Thank you
Ludi
The only way I know is questioning the guest operating system itself and check the registry path:
HKLM\System\CurrentControlSet\Control\NetworkProvider\Order
and check if the value string ProviderOrder hgfs, vmhgs or vmhgfs.
You should remove these values and restart the virtual machine for the change to take effect.
Wise PowerShell:
$VM = get - VM NameofVM
$Reg = [Microsoft.Win32.RegistryKey]: OpenRemoteBaseKey ("LocalMachine', $vm.extensiondata.summary.guest.hostname")
$RegKey = $Reg.OpenSubKey("System\CurrentControlSet\Control\NetworkProvider\Order")
$RegKey.GetValue ("ProviderOrder")
VMware KB: Guest Windows cannot update hgfs.dat or vmhgs.dat
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How everyone counts the total amount of GHz for virtual machines on a host-cluster?
Hello
I want to do some basic sizing and I may\may do not go the way to write about it. For example, suppose I have a cluster of 4 nodes with a total of 200GHz and 1 TB of RAM on all four hosts with 100 VM. How can I get the total amount of GHz\Memory that each virtual machine is configured with (not necessaryly to aid real-time) so that I can workout or demonstrate what fits on one or two hosts in the cluster, for example?
Thanks for your help and advice in advance
You can do this via the inventory tool called RVTOOL which allow you to do an inventory of all your virtual machines and hosts with the resource assigned and served. hope, it will help you.
-
Attached device PCI host to query for virtual machines
In the web client, on a host, we can see in the peripheral PCI if one or several virtual machines are attached to it. The field is called "VMs using it."
I was passing through the API Explorer but unable to find a way up to even with Orchestrator - to find out if a host PCI device is to be used by any machine virtual or not. Is this possible?
If anyone is interested, this is the solution;
var features = host.configManager.graphicsManager.graphicsInfo;
for each {(device in devices)
If (device.pciId.match("46")) {}
System.log (Device.VM);
}
}
-
What is the type of object to use for virtual machine model in the Points of Extension?
Hello
I added my plugin point of extension vsphere.core. ${objectType} .monitorViews. My plugin is for all types of objects (vm, file, vApp, resourcePool, etc) except the model of the virtual machine. My understanding is that the vm object type would be required for the virtual machine template, but that doesn't seem to be the case. Am I missing something here? Should the plugin appear for the model of the virtual machine when I use the vsphere.core.vm.monitorViews extension point?
Thanks in advance.
Kind regards
Ashutosh
Sorry, I got confused by your original question. ExtensionPoint id you are looking for is the one for adding views a model virtual machine monitor tab:
model.monitorViews vSphere.Core.
Maybe you are looking for
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