If your story starts with …

This is a collection of typical issues that I have to deal with.
Please go through the list and find a category that appears to be related to your story.
The category then will be used to look up the required info for the anamnese.


If your story starts with …

After a recent powerfailure VM XY is missing …
After a recent powerfailure Datastore XY can not be mounted
My Datastore run full and …
I tried to update ESXi and now suddenly XY is missing …
The partitiontable is gone …
My Datastore had a size of 18 TB yesterday – now I see just one with less than 2TB …
Cant do operation X as a file is locked
Cant do operation Y due to an I/O error
I accidentaly deleted ….
What was stored in this VMFS-volume ? – now it only shows the usual hidden .sf-files ?
Error-message: extent missing
Error-message: Magic number not found
Error-message: Cant delete …

Then your  problem is categorized as VMFS-problem.
For anamnese a VMFS-header-dump is required.


If your story starts with …

VM worked fine – now it bluescreens
VM does not boot completely
VM can not create snapshot
Can not consolidate …
Too many VMDKs
Suddenly data of last 2 months missing
Needed free space so I deleted file XY – now suddenly …
Message about incorrect VMDK-format

Then your problem is categorized as a VM-problem.
Required data for anamnese:
all descriptor vmdks, vmx, vmsd, all vmware.logs
complete file listing of VM directory created with a
putty command exported to a textfile named “content-directoryname.txt”


If your story starts with …
Sabotage, Court,
Who deleted …
What is missing here …

Then your problem is categorized as Forensic-problem.


If your story starts with …
Yesterday only host A from my cluster could not see the datastore, today also host B is affected …
Due to a snapshot problem my datastore will run full tonight …
My RAID 5 controller reported a bad disk. I already have a new ….

Then your problem is categorized as potentially deteriorating problem.
It is suggested to call as soon as possible and ask for instructions.