ftfcu wrote:
I have a question about Extent vs Increase the size of a datastore. I am not sure if they are one and the same.
If I have a 200GB LUN Presented to me and I make a 200GB Datastore. We realize that we actually needed it to be 400GB. In our case the SAN Administrator grows the LUN and thus we can increase the size of the datastore. Is this an extent? I am not adding two LUNS together to make more size.
The alternative is of course to create a NEW 400GB LUN and the storage vmotion over to it, but if the above is not dangerous or going to rob performance than we would prefer that.
Any thoughts?
extent would be spanning the datastore across different luns.
increase size of datastore would actually enlarge it IF you have space avaialble on the lun or expanded it on your storage first
if the san admin grows it it isnt an extent.
svmotion to a larger datastore is fine too.
http://sparrowangelstechnology.blogspot.com/2012/07/growing-and-expanding-vmfs.html
here you can see the vm was not affected by increasing the datastore