VM shutdown

[risingflight]

Hi experts

I have one datastore  which is 1  TB size  and one VM resides on  it which is thick provisioned lazy zeroed.

The size of the VM is 850 GB and 32 GB memory and no snapshot resides on it.

Suddenly the VM gets powered off with the event in vcenter no disk space for vmdk file.

i can see the error vm goes to consolidation state.

Experts could you help me understand what could the reason for the vm to shutdown.

[vembutech1]

What OS running on it ?. Does OS shows disk space correctly for the disk, Also check automatic update getting failed after download which occupied entire disk. Some time failure of automatic update after download causes this issue.

[risingflight]

Its windows 2012 only 50 percent of space is being utilized.from os perspective no issues

[risingflight]

I am using thick provisioned lazy zero disk and no updates on this server from last two months

[vembutech1]

Also look for this URL

Shrinking a thick provisioned disk in VMWare ESXI 5.1 | Norwegian Sysadmin

[Jitu211003]

I am sure if 850 GB thick disk is allocated then there would be redo logs file which is occupying the much space on datastore.

Because if datastore size is 1 TB then there should be 150 GB free left.

Sometimes, the backup application takes the snapshot of the VM for backup but unable to merge it after backup completion then VM requires snapshot consollidation.

In that scenario, you would not be able to see it in snapshot manager but if you browse the datastore, you will find many vmdk named as xxx-0001,0002,003 and so on.

Now in this case, you have one option.

manually edit the VM and remove the delta disk named as vm-0001.vmdk and map the original vmdk disk named as vm.vmdk.

Hope, it will solve your query.

Do not forget to mark this resolved or helpful.

Thanks