Have you ever needed to expand a vmfs? You can even have a running vm while doing it.
** prereq: If you can grow the lun on your storage, or you under allocated the VMFS then you can easily add more space.
So I have this VMFS, named ExpansionTestDrive.
Current size: It is 90GB.
Desired effect: want 100GB
Test Guest: You can see that the guest is on the VMFS ExpansionTestDrive and its running
Im running pings to see if any drop while doing the expansion
Time to expand
Under configuration -> Storage of your esxi host
You see recsan all?
Do that.
Click ok. It might take a while.
You should see the LUN that is associated with the VMFSstore.
High light it. Then click properties. See 2 pics above.
Now you should get this next box.
You should see the button INCREASE. Click that
Select the lun associated with your VMFS datastore.
Then next
Ok ready to expand
Click finsih
Capacity changed to 100gb while pings kept going.
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