vCenter Alarm question

[EquipeIT]

I did setup a alarm for snapshot size: Warning at 3GB and Alert at 5GB.

But the e-mail alert I got is like this:

Alarm Definition:

*([Yellow metric Is above 31457%; Red metric Is above

52428%])*

Current values for metric/state:

*Metric Storage

overhead due to delta disk backings = 112940%*

I don't get what those % means. Any idea?

[Jr_br]

I was wondering about that too...

[seanhsmith]

Same question here too. would be usefull to have meaning full notifications...