Error: Unable to power on Virtual Machine

cgeorgeisaac
cgeorgeisaac used Ask the Experts™
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I am unable to power on a VM on a production environment and the error received is:
 "No Host is compatible with the virtual Machine"

I migrated the  VM to another  Host in the cluster and then received the following error:
An error was received from the ESX host while powering on VM host xxxx.

We are using vSphere 5.1.

Event Details:  
Type ID: Info
Target Object Type: ClusterComputeResource
DataCenter Object Type: Datacenter
Host Object Type: HostSytem
Host Build: 838463
VM Object Type: Virtual Machine
ChainID: 3341944

Any idea how to fix this please.
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Brian BEE Topic Advisor, Independant Technology Professional

Commented:
Was the guest created on a different platform other than your production cluster? It could be a difference in virtual platform.

If problems persist, create a new VM and point it to the drives for the problem machine.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
does it only occur with this VM or other VMs ?

have you changed anything on this VM, e.g. memory or CPUs ?
cgeorgeisaacSenior Engineer

Author

Commented:
This is the status:

1. There is no additional space in SAN
2. Unable to  create a new VM and point it to the drives since Consolidation for this VM is going on to make some space
3. No changes have been made to CPU or memory
4. It is happening only to this VM
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
can you screenshot the spec....
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
what is the OS ?
cgeorgeisaacSenior Engineer

Author

Commented:
Windows 2008 R2
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
Okay, another check, if you logon direct to the ESXi server,the VM resides on, can you power it on?

this will test

1. if the VM is compatible with vCenter Server.

2. if the cluster is causing an issue, with resources, reservations
cgeorgeisaacSenior Engineer

Author

Commented:
1. When I try to turn on the VM from Host - The power option is greyed out
2. When I try to turn on the VM from vCenter Server getting message:   "No host is compatible with the virtual machine"
Brian BEE Topic Advisor, Independant Technology Professional
Commented:
So you mentioned you can't create a new VM since there is no space left? That may be part of the problem. However creating a new machine will take very little space since you are going to use existing drives. Could you move/copy the drive files to local storage of one of the hosts and try from there?
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
can you screenshot the VM folder.

the VM is not currently running but hung ?
cgeorgeisaacSenior Engineer

Author

Commented:
Could you delete the  2 attachments please after you view it OR can you tell me how to remove it please.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
what is the storage free space on the LUN ?

is all the VM folder data?

did you know you have many snapshots on the VM ?
cgeorgeisaacSenior Engineer

Author

Commented:
1. Yes there were snapshot so we consolidated it.
2. When the consolidated took place it hung at 99%
3.  In the LUN - Capacity 1.46 TB and   Free 128 GB  (Type VMFS 5)
4. Yes the VM Folder is Data.
5. Also, one favor:
  Please delete the  Data which I posted:
 cgeorgeisaac
Your Comment 2015-07-29 at 12:16:44ID: 40904613

Thank you
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Yes, okay this could be the issue with the Snapshots, they have not been consolidated....

and it's possible they still are consolidating...

what did you do, when it was at 99%

did you do anything?

you could have a hung VM, or Hung state ?
cgeorgeisaacSenior Engineer

Author

Commented:
It is hung for the last 24 hours.
Did not do anything at 99 (except moved to another Host).  I guess I will wait for another day and see what happens. I did read your Snap Shot article "Be Patient".
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Something is very odd here, you would not have been able to move it to another host if a task was present!

can you check the disk properties, is it still on a snapshot ?
cgeorgeisaacSenior Engineer

Author

Commented:
Good question:

Originally the Disk was  Thin Provisioned
and now it is Thick Provision Eager Zeroed  - just do not know how it happened.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
snapshot ?
cgeorgeisaacSenior Engineer

Author

Commented:
Yes could be.  Just do not know if it will automatically get fixed after few hours or it will remain stuck at 99%
Tried to power on now:    Message:   Another Task is already in progress.  An error was received from the host.
Will keep you posted.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
I need you to show me evidence, not guesswork...

screenshot of the disk properties within the VM, and then I can advise you...

Okay, another task in progress,,, is

1. Snapshot continues.
2. It's crashed and burned!

Please upload screenshot, and I also need a complete list of files in the folder. to check snapshot size...

free space on the LUN is what ?
VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
Okay, serious problem here.

You have a virtual machine which has been running on a snapshot disk, this has been running on snapshots for at least possibly 18 days. Do you have a backup application running? If so remove this VM from the backup job immediately ASAP.

So each virtual machine disk has 18 snapshots at least.

This will NOT consolidate.

I can then work with you, and hold you hand, on how to resolve this issue, but you must be patient, and follow exactly what I tell you, otherwise it's possible data could be corrupted, it's possible data may have already been corrupted.
cgeorgeisaacSenior Engineer

Author

Commented:
Great advice. I will revert back after attempting to do as per your advice. Thanks again.
cgeorgeisaacSenior Engineer

Author

Commented:
Meanwhile a quick question:

How come I do not see in the screenshot,  the  FLAT File  when the SnapShot is  created and running?
Also,  is the  -000001.vmdk the Delta File?
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
-000001.vmdk the Delta File - yes that's the delta snapshot!

Because the screenshots were created by the storage API direct calls, by your backup application, they were not created manually by the GUI....

so, I can let you know how to proceed....(it's going to be a lot of hand holding..)
cgeorgeisaacSenior Engineer

Author

Commented:
I have confirmed that  there is no backup.  Could you advise the next steps.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
We can try this a quick way....

Is it still stuck at 99%, or task in progress ?

before we do anything we need to clear this issue.
cgeorgeisaacSenior Engineer

Author

Commented:
Wow, I refreshed it and  now able to power on the machine.
Not too sure what may have happened. I guess all the SnapShot Files has been removed automatically.
However, could you advise what needed to be done if the issue had persisted?
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Please check the virtual disks, if they are writing to a snapshot ?

snapshots needs to be dealt with?
cgeorgeisaacSenior Engineer

Author

Commented:
Positive. Only one .vmdk file all the  000001.xxx files (delta files) have disappeared. Thanks.
Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017
Commented:
So, being patient, has cleared the snapshots.

make sure you check the disk properties, of the VM to be sure.

and make sure you watch the snapshots in the future, check daily!

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