Snapshot Space Representation Question

[heinzel0302]

Hi All,

I have a question concerning Snapshot Space representation in the VI-Client. (We are using ESXi4.1 U3 and Vcenter 4.1.)

I activated a Snapshot for a VM which consists of 2 vHDD (50 & 100 GB) and 8 GB vRAM. According to the VI-Client the Snapshot Space was 85,16GB. When checking the files on the coresponding LUN the Space actually used for Snapshot files (<VM_name>-000001-delta.vmdk, <VM_name>_1-000001-delta.vmdk, <VM_name>-Snapshotxx.vmsn & vmsn-Listfile) was only 37,9 GB.

From what is this mismatch coming from? Do I miss something here?

Thanks for your help, thoughts and ideas.

Best...Andreas

[vmroyale]

According to the VI-Client the Snapshot Space was 85,16GB.

Where in the vSphere Client are you seeing this value?

[heinzel0302]

You can see it if you click the "Storage Views" Tab of the VM in the VI-Client. I have attached a Screenshot.

[vmroyale]

Is this VM the only one on the listed datastore with a snapshot on it?

[heinzel0302]

Yes it is.

[a_p_]

The numbers are strange anyway, 1TB capacity, 195GB used and 175GB free!? Did you already try to update the view?

Do you use thin provisioned LUNs on your storage system?

André

[heinzel0302]

The Numbers you mentioned are not strange. The "195GB used" only represents the amount of storage Space that this one machine on the LUN uses. Of course there are more Machines on the LUN. The "FreeSpace" ist the number of TOTAL Free-Space on that LUN. So these number fits.

But what I also noticed now is that the "Virtual-Disk Space" Number is odd. It should represent the Size of the Virtual Disks of that machine (which are 50 & 100 GB >> 150 GB in total)

So actually I am quite confused by the numbers in VI-Client.

Best...Andreas

P.S. No, we do not thin provision our LUNs

[heinzel0302]

Noone any more thoughts on that?